Article ID Journal Published Year Pages File Type
7886685 Ceramics International 2018 10 Pages PDF
Abstract
With the goal of designing a castable refractory for an aerospace application with optimum resistance to thermal shock, three different particle-reinforced ceramic composites are designed and compared. Different volume fractions of Silicon Carbide (SiC) particles, Zirconia (ZrO2) bubbles, and Zirconia solid particles dispersed in an alumina (Al2O3) matrix are used in the fabrication of these castables. Destructive and nondestructive testing procedures are implemented to evaluate their thermomechanical properties, both before and after a custom designed thermal shock cycle. After demonstrating the applicability of thermal shock indices, the variation of these indices due to thermal shock is measured experimentally and utilized as a design tool. Multiple micro-scale damage mechanisms were observed, all of which are various forms of structural deformation.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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