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Meeting MS&T22: Materials Science & Technology
Symposium Engineering Ceramics: Microstructure-Property-Performance Relations and Applications
Presentation Title Fabrication of Porous Silica with Controllable Porosity via Freeze Casting
Author(s) Mert Arslanoglu, Rahul Panat, Burak Ozdoganlar
On-Site Speaker (Planned) Mert Arslanoglu
Abstract Scope Porous ceramics offer advantageous properties that can bring advances to many application areas. The freeze casting (FC) process has a strong potential for fabricating porous ceramics; however, the effects of process parameters on part porosity must be well-understood for scalable manufacturing. This study presents an experimental analysis of this process that correlates the FC parameters with pore characteristics based on a unidirectional FC of silica and camphene slurry. Process parameters of solid loading, particle size, cooling temperature, and the distance from the cooling surface are evaluated. Scanning electron microscopy and computer tomography are used for imaging, and image processing is used for the analysis of the microstructures. Consequently, a quantitative understanding of the effects of FC process parameters on porosity characteristics is gained for the silica-camphene system. The solid loading is determined as the main process parameter that controls the final porosity and pore characteristics of freeze cast silica.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Simple Constitutive Law for Comminuted Ceramics under Multi-axial Loading
Advanced WC-Al2O3-ZrO2 Composites with Improved Metal-cutting Performance for Super Alloys
Crack-path Formation in SiC/SiC Composites
D-10: Crystal Orientation Dependence of Mechanical Properties of β-Si3N4 Grains in High Thermal Conductive Silicon Nitride Ceramics Measured Using Microcantilever Beam Specimens
D-11: High Energy X-ray Characterization and Modeling of Residual Strain Evolution in a Ceramic-metal Composite
D-9: Characteristics of YSZ-WC Composite Ceramics
Development of Process-Structure-Property-Performance Relationships for the Advancement of Hard Ceramics Employing FAST and HiPIMS
Development of Textured Piezoelectric Ceramics for High-bandwidth Applications
Deviations from Hall-Petch Relationships in Nanocrystalline Ceramics
Effect of Initial α-phase Content on Mechanical, Thermal, and Electrical Properties of Pressureless Sintered SiC Ceramics
Electrochemical Fabrication of Microstructure Engineered, Highly textured, Ultra-thick Ceramic Oxide Films for High Volumetric Energy Density Electrochemical Energy Storage
Fabrication of Porous Silica with Controllable Porosity via Freeze Casting
Influence of Inversion Level of Ti:MgGa2O4 Ceramics on the Optical Absorption
Investigation of Local Mechanical Responses in Ceramic Materials Based on In Situ TEM Observations
Manufacturing and Performance of Grain Textured Piezoelectric Ceramics for Acoustic Applications
Mechanical Properties and Fragmentation Mechanisms of Si/SiC Core-shell Nanoparticles
Mechanical Properties of MAX Phases
Modular Piezoceramic/Polymer Composites with Locally Adjustable Piezoelectric Properties
Novel Gel-casting Route for Radially Graded All-ceramic Structures for Microwave Metamaterial Antenna Applications
Refractory Cements and Composites Materials Based on Them in System BaO- AL2O3-SiO2
Role of Electrostatic Potential Energy in Carbon Nanotube Strengthened Cement Paste
The Ball-on-Three-Balls-Test: Improving Accuracy and Simplifying Stress Evaluation
The Effects of Microstructure on the Properties of Reticulated Porous Ceramics
The Role of Micro-Scale Analysis Tools in Industrial Problem Solving
Tin Oxide as a Model System for Sintering without Shrinkage – Monitoring Microstructure Evolution and Elastic Property Changes
Transparent and Fluorescent Rare-earth-doped α-SiAlON Ceramics
Tunable Self-Assembly of 2D Carbide MXenes with Bulk Ultra High Temperature Ceramics

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