A novel development of ZrB2/ZrO2 functionally graded ceramics for ultrahigh-temperature application

2008 ◽  
Vol 59 (11) ◽  
pp. 1214-1217 ◽  
Author(s):  
Xinghong Zhang ◽  
Weijie Li ◽  
Changqing Hong ◽  
Wenbo Han ◽  
Jiecai Han
Keyword(s):  
Functionally Graded ◽  
Temperature Application ◽  
Ultrahigh Temperature

Piezoelectric accelerometers for ultrahigh temperature application

2010 ◽  
Vol 96 (1) ◽  
pp. 013506 ◽  
Author(s):  
Shujun Zhang ◽  
Xiaoning Jiang ◽  
Michael Lapsley ◽  
Paul Moses ◽  
Thomas R. Shrout
Keyword(s):  
Temperature Application ◽  
Ultrahigh Temperature

Structure evolution of ZrB2–SiC during the oxidation in air

2008 ◽  
Vol 23 (7) ◽  
pp. 1961-1972 ◽  
Author(s):  
Xing-Hong Zhang ◽  
Ping Hu ◽  
Jie-Cai Han
Keyword(s):  
Room Temperature ◽  
Structure Evolution ◽  
Gravimetric Analysis ◽  
Temperature Application ◽  
Evolution Of Structure ◽  
Ultrahigh Temperature ◽  
Sic Composites ◽  
Oxidation In Air ◽  
Increasing Temperature ◽  
Apparent Influence

The structure evolution and oxidation behavior of ZrB2–SiC composites in air from room temperature to ultrahigh temperature were investigated using furnace testing, arc jet testing, and thermal gravimetric analysis (TGA). The oxide structure changed with the increasing temperature. SiC content has no apparent influence on the evolution of structure during the oxidation of ZrB2–SiC below 1600 °C. However, the evolution of structure for ZrB2–SiC above 1800 °C was significantly affected by the SiC content. The formation of the SiC depleted layer in the ZrB2–SiC system not only depends on the surrounding conditions of pressure and temperature but also on the structure distribution of the SiC in the ZrB2 matrix. The apparent recrystallization of the ZrO2 occurred above 1800 °C. The SiC content should be controlled at ∼16% in the ZrB2–SiC system for the ultrahigh-temperature application. The mechanisms of the structure evolution during oxidation in air were also analyzed.

A long-term ultrahigh temperature application of layered silicide coated Nb alloy in air

2018 ◽  
Vol 439 ◽  
pp. 1111-1118 ◽  
Author(s):  
Jia Sun ◽  
Qian-Gang Fu ◽  
Tao Li ◽  
Chen Wang ◽  
Cai-Xia Huo ◽  
...  
Keyword(s):  
Temperature Application ◽  
Ultrahigh Temperature
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