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Meeting Materials Science & Technology 2019
Symposium Sintering and Related Powder Processing Science and Technologies
Presentation Title P2-71: Field-induced Mass Transport Phenomena in Flash Sintered High Temperature Ceramics Explored by TEM and In situ SEM
Author(s) Xin Li Phuah, Han Wang, Jaehun Cho, Jin Li, Sichuang Xue, K.S.N. Vikrant, Harry Charalambous, Thomas Tsakalakos, Amiya Mukherjee, C. Stephen Hellberg, Noam Bernstein, R. Edwin Garcia, Xinghang Zhang, Haiyan Wang
On-Site Speaker (Planned) Xin Li Phuah
Abstract Scope Flash sintering has attracted significant attention lately as its remarkable rapid densification process at low furnace temperature and short sintering time. Here, we report the microstructure of flash-sintered yttria-stabilized zirconia (YSZ) and TiO2 by transmission electron microscope (TEM) and their high temperature in situ micropillar compression studies inside a scanning electron microscope (SEM). Flash sintered YSZ demonstrated several key characteristics such as grain texturing, Y-segregation at grain boundaries and presence of dislocation arrays. Mechanical testing of flash sintered YSZ show high inelastic strain (~ 8%) primarily due to phase transformation toughening below 400C. At higher temperatures, crack nucleation and propagation are significantly retarded and prominent plasticity arises mainly from dislocation activities. High dislocation density and stacking faults have been observed in the flash-sintered TiO2 under TEM. The presence of high-density defects generated during flash sintering plays a major role in the overall microstructure and mechanical behavior.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Multiscale-imaging of Processing-induced Defects Formed during Sintering of Alumina
A Novel Approach to Boriding of TZM by Spark Plasma Sintering Method
Analysis of SPS Parameters and Resultant Electrical Response of SPS Sintered Specimens
Characterization of Functionally Graded Rods with High Strength, Good Wear Resistance and Ductility of Titanium Matrix Composites Prepared by Spark Plasma Extrusion
Cold Sintering of Ceramic Materials, Devices and Novel Nanocomposites
Controlling Factors in Flash Sintering of Ceramics
Development of Tungsten Based Plates by Spark Plasma Sintering
Electrochemically-Driven Abnormal Grain Growth of Ionic Ceramics
Glass Sealing of Solid Oxide Fuel Cells (SOFC)
In-situ Monitoring of Interfaces Being Formed as a Functon of Pressure, Temperature and Composition
In-situ Observation of the Internal Structure of an Alumina Green Body during Sintering by Optical Coherence Tomography
Influence of Grain Size on the Entropic Transformation in High Entropy Oxides
Investigation the Effect of CNT and GNP Additions on Densification, Microstructure and Mechanical Properties of B4C Prepared by Spark Plasma Sintering
Kinetics and Densification Behavior during Reaction Sintering of Bulk Titanium Boride (TiB) Nanoceramics by Spark Plasma Sintering (SPS)
Microstructural Control during Sintering of WC-Co
Microstructural Observation and Mechanical Properties of B4C Based Composites Reinforced with CrCoFeMoNi High Entropy Alloy Prepared by Spark Plasma Sintering
Neck Growth in Sintering of Silver Nanowires
P2-107: Influence of Spark Plasma Sintering Processing Parameters and Field Effects on the Microstructure and Mechanical Properties of Advanced Materials
P2-71: Field-induced Mass Transport Phenomena in Flash Sintered High Temperature Ceramics Explored by TEM and In situ SEM
P2-72: Formation Mechanism of Porosity in P-type Bi0.5Sb1.5Te3 Materials and its Influence on Thermoelectric Transport Properties
P2-73: Investigation of Mechanical Properties of CoCrFeMnNi High Entropy Alloys Fabricated by Rapid Solidification Process
P2-74: Study on the Effect of Cu Dispersion on the Thermoelectric Properties of Bi-Sb-Te Alloy
P2-75: Synthesis and Chemical Lixiviation of Nanostructured Calcium-doped Magnesium Aluminate Spinel
Production and Characterization of AlON Ceramics with Different Amount of MgO Addition via Reactive Spark Plasma Sintering
Production and Characterization of B4C- ZrB2 Composites via Spark Plasma Sintering Method
Reactive Sintering and Templated Grain Growth of CuO-doped PIN-PMN-PT Ceramics
Room Temperature Plasticity in Flash-sintered TiO2
Simulation of Densification of Contacting Particles using a Two-dimensional Monte Carlo Model for Solid State Sintering
Simultaneous Multiple Complex Net Shape Components Production by 3D Printing and Spark-Plasma Sintering
Sintering Behavior and Ionic Conductivity of Li1.5Al0.5Ti1.5(PO4)3 Synthesized with Different Precursors
Spark Plasma Sintered Aluminum Oxide Filter for Hot Gas Applications
Spark Plasma Sintering of Soft Magnetic Materials
Spark Plasma Sintering of Titanium Diboride Ceramics with Different Amount of Titanium Addition
Staged Microstructural Study of Flash Sintered Titania
Stochastic Modeling of the Effect of Structural Randomness on the Mechanical Behaviors of 3D Printed Metallic Powders
Surface and Grain Boundary Segregation during Nanopowders Preparation and Sintering
The Role of Grain Boundaries in Nanoscale Sintering: Atomistic and Mesoscale Modeling Studies
Visualization of Sintering in Particle-Based Ink Printed Ni Scaffolds via In Situ X-Ray Tomography

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