Title :
Mechanical investigations on high temperature oxidation of ZrB2-SiC UHTCs
Author :
Yongjun, Wang ; Zhenqing, Wang ; Yang, Liu ; Hongqing, Lv
Author_Institution :
Harbin Eng. Univ., Harbin
Abstract :
A model taking into accounts of mass conservation equation, kinetics of oxidation reaction, phase transformation has been proposed to describe the high temperature behavior of the oxidation layer of ZrB2-SiC composites along with Arrhenius law and Eshelbypsilas equivalent inclusion theorem. Volume fraction change of constituents and the elastic modulus of the depletion layer have been theoretically and numerically. The results show good agreement with the experimental phenomena.
Keywords :
aerospace engineering; aerospace materials; boron compounds; ceramics; elastic moduli; high-temperature techniques; inclusions; oxidation; phase transformations; silicon compounds; zirconium compounds; ZrB2-SiC; ZrB2-SiC UHTC; aerospace engineering; elastic modulus; equivalent inclusion theorem; high temperature oxidation; mass conservation equation; mechanical investigations; phase transformation; ultra-high temperature ceramics; volume fraction change; Equations; Kinetic theory; Oxidation; Temperature; ZrB2-SiC composites; aerospace engineering; elastic modulus; high temperature oxidation; phase transformation; volume fraction change;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2008. ISSCAA 2008. 2nd International Symposium on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-3908-9
Electronic_ISBN :
978-1-4244-2386-6
DOI :
10.1109/ISSCAA.2008.4776338
