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EFFECT OF BORON CARBIDE COMPOSITION IN SiC/B4C COMPOSITE ON SURFACE TEMPERATURE DECAY AS REVEALED BY THERMAL WAVE METHOD

 

作者: M.M. MOKSIN,   V.I. GROZESCU,   Z.A. WAHAB,   W.M.M. YUNUS,   B.Z. AZMI,  

 

期刊: Nondestructive Testing and Evaluation  （Taylor Available online 1997）
卷期: Volume 13, issue 5  

页码: 239-245

 

ISSN:1058-9759

 

年代: 1997

 

DOI:10.1080/10589759708953033

 

出版商: Taylor & Francis Group

 

关键词: Composites;thermal wave method;temperature decay;thermal diffusivity;decay time

 

数据来源: Taylor

 

摘要:

We report the results of a thermal wave study on SiC/B4C composites of different B4C compositions. Thermal wave, generated subsequent to sample absorption of pulse laser, was observed by means of a wide-band infrared detector. The information content of the thermal wave is then analysed by using a least-squares method. Temperature decay time, as measured from thermal wave decay curve, varies with % of B4C in the composites. Up to 50% B4C the decay time was found to vary inversely with thermal diffusivity of the composites as predicted.

 

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