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Spark Plasma Sintering of Materials

Spark Plasma Sintering of Materials
  • Author : Pasquale Cavaliere
  • Publisher :Unknown
  • Release Date :2019-02-18
  • Total pages :781
  • ISBN : 9783030053277
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Summary : This book describes spark plasma sintering (SPS) in depth. It addresses fundamentals and material-specific considerations, techniques, and applications across a broad spectrum of materials. The book highlights methods used to consolidate metallic or ceramic particles in very short times. It highlights the production of complex alloys and metal matrix composites with enhanced mechanical and wear properties. Emphasis is placed on the speed of the sintering processes, uniformity in product microstructure and properties, reduced grain growth, the compaction and sintering of materials in one processing step, various materials processing, and high energy efficiency. Current and potential applications in space science and aeronautics, automation, mechanical engineering, and biomedicine are addressed throughout the book.

Spark Plasma Sintering: Current Status, New Developments and Challenges

Spark Plasma Sintering: Current Status, New Developments and Challenges
  • Author : Giacomo Cao,Claude Estournes,Javier Garay,Roberto Orru
  • Publisher :Unknown
  • Release Date :2019-06-17
  • Total pages :396
  • ISBN : 9780128177440
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Summary : Spark Plasma Sintering: Current Status, New Developments and Challenges: A Review of the Current Trends in SPS looks at the progress made in the field of SPS. It includes a review of the scientific mechanisms, materials synthesis and industry applications for this processing technique. Chapters are written by leading experts in the field, encompassing topics surrounding the densification mechanism and microstructure evolution, the classification of high-performance materials, a review of numerical simulation, discussions of new technology advances, such as HP-SPS, flash sintering and related challenges. This book will be useful for researchers, engineers and students within the materials science and engineering fields. Provides significant information on the most relevant research topics currently being addressed by the SPS community Highlights the application of SPS techniques Reviews critical issues that still need to be overcome when utilizing SPS technology

Spark-Plasma Sintering and Related Field-Assisted Powder Consolidation Technologies

Spark-Plasma Sintering and Related Field-Assisted Powder Consolidation Technologies
  • Author : Eugene A. Olevsky
  • Publisher :Unknown
  • Release Date :2018-07-02
  • Total pages :192
  • ISBN : 9783038423829
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Summary : Electromagnetic field-assisted sintering techniques have increasingly attracted attention of scientists and technologists. Spark-plasma sintering (SPS) and other field-assisted powder consolidation approaches provide remarkable capabilities to the processing of materials into configurations previously unattainable. Of particular significance is the possibility of using very fast heating rates, which, coupled with the field-assisted mass transport, stand behind the purported ability to achieve high densities during consolidation and to maintain the nanostructure of consolidated materials via these techniques. Potentially, SPS and related technologies have many significant advantages over the conventional powder processing methods, including the lower process temperature, the shorter holding time, dramatically improved properties of sintered products, low manufacturing costs, and environmental friendliness.

Exam Prep for: Spark Plasma Sintering - Current Status, New ...

Exam Prep for: Spark Plasma Sintering - Current Status, New ...
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2021
  • Total pages :229
  • ISBN : 1230987654XX
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Summary :

Sintering and Reactive Sintering by Spark Plasma Sintering (SPS)

Sintering and Reactive Sintering by Spark Plasma Sintering (SPS)
  • Author : Giulia Franceschin
  • Publisher :Unknown
  • Release Date :2018
  • Total pages :229
  • ISBN : OCLC:1154221497
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Summary : A wide variety of technological applications, especially in electronics, requires high-density nanostructured solids, consolidated by sintering from nanoparticles. A new sintering technique known as spark plasma sintering (SPS) appears as the only method to reach high densities while preserving the final grain size within the nanometric range, with the added advantage of carrying out the process at significantly lower temperatures and shorter times as compared with the classical processes. Recent studies have revealed that in many cases, SPS can also accomplish the solid-state reaction to achieve the desired compound, leading to reactive SPS (RSPS). In this chapter, a review of RSPS is presented, focusing particularly on magnetic oxide materials as functional solids.

The Effect of Slip Casting and Spark Plasma Sintering (SPS) Temperature on the Transparency of MgAl2O4 Spinel

The Effect of Slip Casting and Spark Plasma Sintering (SPS) Temperature on the Transparency of MgAl2O4 Spinel
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2018
  • Total pages :229
  • ISBN : OCLC:1028156597
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Summary : Abstract: MgAl2 O4 bulk samples were fabricated by two different approaches to investigate the effect of slip casting and sintering temperature on their transparency. Three MgAl2 O4 samples containing 1 wt% LiF, as the sintering aid, were prepared by the spark plasma sintering process (SPS) at 1400 °C and 1500 °C, under 100 MPa, for 15 min. Also, another MgAl2 O4 sample was prepared by slip casting followed by SPS under similar conditions. It was observed that utilizing slip casting led to more transparency (10% in the visible region and 20% in the IR region) due to the more homogeneous structure. It was also observed that by reducing the SPS temperature from 1500 °C to 1400 °C, the transparency increased (20% in the IR region) because of the lower grain growth rate at the lower temperature.

Sintering of Functional Materials

Sintering of Functional Materials
  • Author : Igor Shishkovsky
  • Publisher :Unknown
  • Release Date :2018-02-07
  • Total pages :192
  • ISBN : 9789535137566
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Summary : Powder-based materials and treatment technologies rank high in contemporary scientific-technical progress due to their numerous significant technoeconomic qualities. Sintering of such materials allows saving on materials and lowering the cost price of the product, as well as manufacturing complex composite materials with unique combinations of qualities. Materials of record high values of some physic-mechanical and also biochemical characteristics can be obtained owing to structural peculiarities of super dispersed condition. Sintering of functional materials for innovative perspectives in automotive and aeronautical engineering, space technology, lightweight construction, mechanical engineering, modern design, and many other applications requires established relationship in the materials-process-properties system. Therefore, the industry being interested in understanding theoretical modeling, and control over behavior of such powdered materials has promoted the research activities of this manuscript's authors.

Optimization of Spark-Plasma Sintering Efficiency

Optimization of Spark-Plasma Sintering Efficiency
  • Author : Diletta Giuntini
  • Publisher :Unknown
  • Release Date :2016
  • Total pages :284
  • ISBN : OCLC:970347582
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Summary : The efficiency of Spark Plasma Sintering (SPS) is optimized by means of a temperature-based procedure. The correlations between temperature, porous material structure and tooling geometry are explored. The issue of agglomeration, cause of the formation of hierarchical porous structures in the powder compact, is addressed with an analytical and numerical approach. Densification kinetics, sintering stress, bulk and shear moduli of agglomerated compacts are modeled as functions of the hierarchy characterizing the porosity and the nonlinear viscous rheology of the material. The material nonlinearity is expressed by the strain rate sensitivity parameter, which in turn is dependent on temperature. An empirically-based explicit formulation of strain rate sensitivity as a function of temperature is provided. A subsequent tuning of the strain rate sensitivity allows the optimization of the thermal regime in order to obtain in situ deagglomeration of the SPS specimen or the production of tailored material structures. In order to guarantee that the optimized thermal conditions are experienced by the entire specimen, we study the geometry of the SPS tooling setup. The tooling influence on temperature distributions is assessed in both the radial and the axial directions by means of a combined experimental and finite-element study. The phenomena underlying the presence of thermal gradients are individuated and controlled by tailoring the design of the tooling setup. Novel geometries are proposed for the components of the tooling, capable to annihilate the temperature disparities and thus complete the optimization of the SPS procedure. A comprehensive finite-element framework, in which both agglomerated powder compacts and tooling setup can be reconstructed and improved, is therefore developed.

Sintering Techniques of Materials

Sintering Techniques of Materials
  • Author : Arunachalam Lakshmanan
  • Publisher :Unknown
  • Release Date :2015-04-01
  • Total pages :200
  • ISBN : 9789535120339
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Summary : The book covers new sintering techniques on ceramic materials, metals and composites as well as reprocessed PTFE. The book covers theoretical as well as experimental aspects on Spark Plasma Sintered (SPS) Porous copper, development of cutting blades with high hardness and resistance to cracking and wear, increased microhardness of austenitic steel ? TiB2 composites obtained with high pressure - high temperature sintering, Al2O3 porous body with cotton as the template and excellent thermal insulation with direct application for refractories as well as Metal matrix composites added nanostructured tantalum carbide and an overview of different sintering techniques used in powder metallurgy. Finally recycling of PTFE scrap materials using ram extrusion and compression molding is described.

Handbook of Advanced Ceramics

Handbook of Advanced Ceramics
  • Author : Masao Tokita
  • Publisher :Unknown
  • Release Date :2013-04-11
  • Total pages :1258
  • ISBN : 9780128057605
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Summary :

Spark Plasma Sintering Technology Applied to Polymer-based Composites for Structural Light Weighting

Spark Plasma Sintering Technology Applied to Polymer-based Composites for Structural Light Weighting
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1051989187
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Summary : Abstract : The development of multilayered polymeric/metallic materials by a PM route employing spark plasma sintering (SPS) has been explored. The aim is to produce composites that join a polymer with a metal for structural applications. In a first approach, the consolidation of polyimide-based composites by SPS was studied. For temperatures as low as 350°C, homogeneous mechanical properties were achieved in compression tests. In a second set of experiments, multilayered polyimide/aluminium composites were consolidated by SPS. These polymer-based composites could be used as an interlayer material to join effectively polyimide and aluminium.

Field-Assisted Sintering

Field-Assisted Sintering
  • Author : Eugene A. Olevsky,Dina V. Dudina
  • Publisher :Unknown
  • Release Date :2018-08-09
  • Total pages :425
  • ISBN : 9783319760322
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Summary : This book represents the first ever scientific monograph including an in-depth analysis of all major field-assisted sintering techniques. Until now, the electromagnetic field-assisted technologies of materials processing were lacking a systematic and generalized description in one fundamental publication; this work promotes the development of generalized concepts and of comparative analyses in this emerging area of materials fabrication. This book describes modern technologies for the powder processing-based fabrication of advanced materials. New approaches for the development of well-tailored and stable structures are thoroughly discussed. Since the potential of traditional thermo-mechanical methods of material treatment is limited due to inadequate control during processing, the book addresses ways to more accurately control the resultant material's structure and properties by an assisting application of electro-magnetic fields. The book describes resistance sintering, high-voltage consolidation, sintering by low-voltage electric pulses (including spark plasma sintering), flash sintering, microwave sintering, induction heating sintering, magnetic pulse compaction and other field-assisted sintering techniques. Includes an in-depth analysis of all major field-assisted sintering techniques; Explains new techniques and approaches for material treatment; Provides detailed descriptions of spark plasma sintering, microwave sintering, high-voltage consolidation, magnetic pulse compaction, and various other approaches when field-assisted treatment is applied.

Spark Plasma Sintering of Negative Temperature Coefficient Thermistor Ceramics

Spark Plasma Sintering of Negative Temperature Coefficient Thermistor Ceramics
  • Author : Aimin Chang
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1154201214
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Summary : Spark Plasma Sintering of Negative Temperature Coefficient Thermistor Ceramics.

Spark Plasma Sintering of WC–Co Tool Materials Prepared with Emphasis on WC Core–Co Shell Structure Development

Spark Plasma Sintering of WC–Co Tool Materials Prepared with Emphasis on WC Core–Co Shell Structure Development
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1052086665
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Summary : Abstract: Quasi-nano-sized WC core–Co shell structure composites were successfully fabricated by the wet chemical reduction method by introducing uniformly dispersed WC powders of 300-nm size into the Co(OH)2, which was subsequently reduced to Co shell structure by drop-wise titration of H3 PO2 . X-ray diffractometer (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) identified WC core–Co shell phases which were subsequently ball-milled, compacted and finally densified at 1400–1450 °C by spark plasma sintering. WC–Co sintered composites thus prepared were analyzed to examine densification, hardness and fracture behavior: reasonably adequate post-sintering properties are attributable to improved WC core–Co shell structure afforded by the optimized mechanical alloying and SPS sintering processes. Highlights: WC–Co composites were fabricated by the wet chemical reduction method. The average of synthesized WC–Co composites was 163 nm. Composite powders were compaction and densification by spark plasma sintering. WC–Co composites were analyzed to examine hardness and fracture toughness.

High Pressure Spark Plasma Sintering Followed by Electric Annealing of AlCoCrFeNi High Entropy Alloy

High Pressure Spark Plasma Sintering Followed by Electric Annealing of AlCoCrFeNi High Entropy Alloy
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2016
  • Total pages :81
  • ISBN : OCLC:945581457
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Summary : The microstructural evolution of equimolar AlCoCrFeNi mechanically activated powder was investigated after high pressure spark plasma sintering (HPSPS) and subsequent electric annealing. This rapid consolidation method successfully produced AlCoCrFeNi high entropy alloy composite material with low porosity and average microhardness of HV 387. The results of this study validate the proposed method as an alternative to the more common consolidation technique of vacuum arc-melting and casting. In this rapid consolidation method, mechanically activated powder reduces milling duration, while the use of Joule heating during spark plasma sintering and electric annealing decrease processing time and promote strengthening mechanisms. Both annealing time and temperature had a profound effect on developed properties in terms of hardness and homogenization. Solid state phase transformation was investigated by x-ray diffraction (XRD) and energy-dispersive x-ray spectroscopy (EDS) analysis, while the mechanical response was observed by microhardness evolution. XRD analysis confirms the presence of both FCC and BCC phases after electric annealing. Trends indicate an intensifying FCC matrix phase with increasing annealing time and temperature, while hardness simultaneously elevates as the homogeneity of matrix and Cr-Fe rich phases stabilize. Compositional changes revealed by EDS analysis support diffusional trends seen in the backscattered scanning electron microscopy (SEM) images.

Titanium Powder Metallurgy

Titanium Powder Metallurgy
  • Author : Ma Qian,Francis H. Froes
  • Publisher :Unknown
  • Release Date :2015-02-10
  • Total pages :648
  • ISBN : 9780128009109
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Summary : Titanium Powder Metallurgy contains the most comprehensive and authoritative information for, and understanding of, all key issues of titanium powder metallurgy (Ti PM). It summarizes the past, reviews the present and discusses the future of the science and technology of Ti PM while providing the world titanium community with a unique and comprehensive book covering all important aspects of titanium powder metallurgy, including powder production, powder processing, green shape formation, consolidation, property evaluation, current industrial applications and future developments. It documents the fundamental understanding and technological developments achieved since 1937 and demonstrates why powder metallurgy now offers a cost-effective approach to the near net or net shape fabrication of titanium, titanium alloys and titanium metal matrix composites for a wide variety of industrial applications. Provides a comprehensive and in-depth treatment of the science, technology and industrial practice of titanium powder metallurgy Each chapter is delivered by the most knowledgeable expert on the topic, half from industry and half from academia, including several pioneers in the field, representing our current knowledge base of Ti PM. Includes a critical review of the current key fundamental and technical issues of Ti PM. Fills a critical knowledge gap in powder metal science and engineering and in the manufacture of titanium metal and alloys

Spark Plasma Sintering of Titanium-Zirconium-Tantalum High Temperature Shape Memory Alloy

Spark Plasma Sintering of Titanium-Zirconium-Tantalum High Temperature Shape Memory Alloy
  • Author : Bamidele Lawrence Bayode
  • Publisher :Unknown
  • Release Date :2016
  • Total pages :206
  • ISBN : OCLC:1012916004
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Summary : Discusses the aim of this study is to synthesize Ti-Zr-Ta shape memory alloys for high temperature application using spark plasma sintering technique. The aim was achieved through these objectives: 1. Synthesis and characterization of Ti, Zr, Ta, Ti-Zr, Ti-Ta, Ti-Zr-Ta and Ti-Ta-Zr admixed powders. 2. Exploration of the feasibility of achieving fully dense bulk samples from powder mixtures of different particle size range under different sintering conditions. 3. Investigating the possible metallurgical interactions and phenomenon during and after spark plasma sintering of the powders. 4. Evaluation of the microstructural features, the densification behaviour in terms of relative density and the mechanical properties in terms of hardness and fracture toughness of the sintered alloys.

Processing, Properties, and Design of Advanced Ceramics and Composites II

Processing, Properties, and Design of Advanced Ceramics and Composites II
  • Author : Narottam P. Bansal,Ricardo H. R. Castro,Michael Jenkins,Amit Bandyopadhyay,Susmita Bose,Amar S. Bhalla,J. P. Singh,Morsi M. Mahmoud,Gary Pickrell,Sylvia Johnson
  • Publisher :Unknown
  • Release Date :2018-02-05
  • Total pages :350
  • ISBN : 9781119455455
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Summary : Processing, Properties, and Design of Advanced Ceramics and Composites II, Ceramic Transactions Volume 261 Narottam P. Bansal, Ricardo H. R. Castro, Michael Jenkins, Amit Bandyopadhyay, Susmita Bose, Amar Bhalla, J.P. Singh, Morsi M. Mahmoud, Gary Pickrell, and Sylvia Johnson; Editors This proceedings volume contains a collection of 36 papers (~350 pages) from the following symposia held during the 2016 Materials Science and Technology (MS&T’16) meeting held in Salt Lake City, UT, October 24-27, 2016: Advanced Materials for Harsh Environments Advances in Dielectric Materials and Electronic Devices Advances in Ceramic Matrix Composites Ceramic Optical Materials Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials Innovative Processing and Synthesis of Ceramics, Glasses and Composites International Standards for Properties and Performance of Advanced Ceramics Multifunctional Oxides Rustum Roy Memorial Symposium on Processing and Performance of Materials Using Microwaves, Electric, and Magnetic Fields Sintering and Related Powder Processing Science and Technology Surface Properties of Biomaterials Thermal Protection Materials and Systems Zirconia Based Materials for Cutting Edge Technology

Numerical Study of a SiC Mould Subjected to a Spark Plasma Sintering Process

Numerical Study of a SiC Mould Subjected to a Spark Plasma Sintering Process
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1051396523
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Summary : Abstract : Spark plasma sintering (SPS) is a material processing technique based on the Joule heating of a mould and powder under an electrical pulse or DC current. This study demonstrates the use of silicon carbide (SiC). A finite-element numerical study was performed to predict the temperature and stress distributions during SPS. In addition, it was found experimentally that SPS using SiC exhibits similar behaviour to that with a conventional graphite die.

Spark Plasma Sintering and Tribological Characteristics of Carbon Nanotube Reinforced Titanium-Aluminium-Vanadium

Spark Plasma Sintering and Tribological Characteristics of Carbon Nanotube Reinforced Titanium-Aluminium-Vanadium
  • Author : Adewale Oladapo Adegbenjo
  • Publisher :Unknown
  • Release Date :2017
  • Total pages :238
  • ISBN : OCLC:1012426896
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Summary : Discusses the aim of the research study is to develop a high performance spark plasma sintered MWCNTs reinforced Ti6Al4V composite suitable for application in harsh and unstable service conditions. The specific objectives of the research study are: 1. Investigate the sinterability of MWCNTs reinforced Ti6Al4V composites and determine the possible metallurgical interactions and phenomena occurring during the spark plasma sintering of these materials. 2. Assess the effect of sintering temperature and weight fraction of MWCNTs on the densification, microstructural evolution and hardness properties of the sintered bulk composites. 3. Investigate the influence of MWCNTs on the tribological characteristics of MWCNT/Ti6Al4V composites in dry sliding wear conditions under different applied normal loads.

Constitutive Modeling and Simulation of Spark Plasma Sintering with Applications to Fabrication of Functionally Structured Mono-Carbides

Constitutive Modeling and Simulation of Spark Plasma Sintering with Applications to Fabrication of Functionally Structured Mono-Carbides
  • Author : Wei Li
  • Publisher :Unknown
  • Release Date :2013
  • Total pages :29
  • ISBN : 1303627744
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Summary : The so called spark plasma sintering (SPS) is a relatively new hot consolidation technology that is getting rapidly growing attention for the academic research and industrial development. Although there is no evidence of plasma existence yet, substantial experiment trials have been done and often delivered superior material properties with high processing efficiency. However, the majority of fundamental modeling and simulation work done to now is still limited to the study on interactions of electrical-thermal fields; while few of the studies included analyses of stress distribution, densification, or grain growth. This study is the first modeling and simulation work to fully couple electrical-thermal-mechanical fields together with porous body consolidation and grain growth. This study uses a power law creep based model with a novel grain size - density correlation model to describe the material densification and microstructure coarsening under mechanical pressure at high temperature. Realistic boundary conditions at the contact interfaces between punch-die-specimen are also included in calculations. A novel multi step pressure dilatometry approach is introduced to determine the material parameters for modeling, including strain rate sensitivity (responsible for hardening effect), activation energy, and the vibrational frequency. With the experimentally determined material parameters and handbook properties, the model predictions are close to experimental density data on SPS of copper (R2 90.4%) and vanadium carbide (R2 99.7%) powders. Copper was used for the fundamental study with the aim to characterize electric current impact on SPS consolidation. Another system of vanadium carbide was used as a surrogate material with the aim to investigate the feasibility of fabricating functionally structured uranium carbide nuclear fuel pellets by SPS.