Measurements of elastic and anelastic properties of reaction-formed silicon carbide ceramics

被引：11

作者：

Wolfenden, A ^{[1
]}

Oliver, KA ^{[1
]}

Singh, M ^{[1
]}

机构：

[1] NASA,LEWIS RES CTR,NYMA INC,CLEVELAND,OH 44135

来源：

JOURNAL OF MATERIALS SCIENCE | 1996年 / 31卷 / 22期

关键词：

D O I：

10.1007/BF01152161

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The piezoelectric ultrasonic composite oscillator technique (PUCOT) was used to measure dynamic Young's modulus, damping, strain amplitude, and the strain-amplitude dependence of damping on three reaction-formed silicon carbide (RFSC) specimens. The data were compared with results found on NC 203 SiC. The temperatures used to conduct the tests ranged from 595-1049 degrees C, and this information complemented data collected earlier. The main results are as follows: the modulus for RFSC specimens decreases with increasing temperature over a range of approximately 350-260 GPa from room temperature to 1049 degrees C, the modulus for NC203 ranges from 450-415 GPa over the same temperature range, and damping of RFSCs is independent of strain amplitude and has little temperature dependence.

引用

页码：6073 / 6076

页数：4

共 13 条

[1]

Behrendt D. R., 1994, Journal of Materials Synthesis and Processing, V2, P117

[2]

Friedel J., 1964, DISLOCATIONS, P454

[3]

HARMOUCHE MR, 1985, J TEST EVAL, V13, P424, DOI 10.1520/JTE10976J

[4]

HARTMAN JT, 1986, J METALS APR, P33

[5] USE OF THE PIEZOELECTRIC GAUGE FOR INTERNAL FRICTION MEASUREMENTS [J].

MARX, J .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1951, 22 (07) :503-509

[6] PIEZOELECTRIC METHOD OF DETERMINING MECHANICAL DAMPING AT FREQUENCIES OF 30 TO 200 KHZ [J].

ROBINSON, WH ;

EDGAR, A .

IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, 1974, SU21 (02) :98-105

[7] REACTIVE MELT INFILTRATION OF SILICON-MOLYBDENUM ALLOYS INTO MICROPOROUS CARBON PREFORMS [J].

SINGH, M ;

BEHRENDT, DR .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 194 (02) :193-200

[8] REACTIVE MELT INFILTRATION OF SILICON-NIOBIUM ALLOYS IN MICROPOROUS CARBONS [J].

SINGH, M ;

BEHRENDT, DR .

JOURNAL OF MATERIALS RESEARCH, 1994, 9 (07) :1701-1708

[9] MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF REACTION-FORMED SILICON-CARBIDE (RFSC) CERAMICS [J].

SINGH, M ;

BEHRENDT, DR .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 187 (02) :183-187

[10]

SINGH M, 1993, ADV CERAMIC MATRIX C, P349

← 1 2 →