Measurement of dynamic young's modulus for molybdenum disilicide/pentatitanium trisilicide

被引：4

作者：

Wolfenden, A ^{[1
]}

Kury, PB ^{[1
]}

Petrovic, JJ ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 1996年 / 5卷 / 02期

关键词：

ceramics; composites; elastic; intermetallics; molybdenum disilicide; pentatitanium trisilicide; temperature; ultrasonics; Young's modulus;

D O I：

10.1007/BF02650892

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The PUCOT (piezoelectric ultrasonic composite oscillator technique) has been used to measure the temperature dependence of dynamic Young's modulus of molybdenum disilicide (MoSi2) reinforced with 10, 30, and 50% volume fraction of pentatitanium trisilicide (Ti5Si3). The temperature ranges were room temperature to 600 degrees C for the 30 and 50% specimens, and room temperature to 880 degrees C for the 10% specimens. In all cases, the values of Young's modulus decreased linearly with increasing temperature, although at different rates. A graph of Young's modulus versus composition was used to estimate the value of Young's modulus for MoSi2. The value obtained (385 GPa) was in excellent agreement with the value of 388 GPa quoted in the literature.

引用

页码：232 / 234

页数：3

共 10 条

[1]

FITZER E, 1973, SPEC CERAM, V8

[2] HIGH-STRENGTH, HIGH-TEMPERATURE INTERMETALLIC COMPOUNDS [J].