| About this Abstract |
| 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. |