Mechanical Properties Evaluation of Ultra-high Temperature Ceramics
Ultra-high temperature ceramics (UHTCs) have attracted increasing attention of material scientists and engineers due to their promising application in reactive atmospheres such as monatomic oxygen at high temperatures over 1600℃.However,the mechanical properties of this kind of ceramics at ultra-high temperature are difficult to measure because of the temperature limits of the furnace and fixture.In this work,an innovative measuring approach,trace analysis method,is presented for estimating the ultra-high temperature mechanical properties.Various material parameters,including elastic modulus,hardness,recovery deformation and energy dissipation capacity at ultra-high temperature could be determined via a residual indent trace that was induced by a fast impact of a ceramic conical indenter on the local area at high temperature.
Ultra-high temperature ceramics Mechanical properties Impact test Residual indent
X.X.Bu Y.W.Bao
China Building Materials Academy,Beijing 100024,P.R.China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1791-1794
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）