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2012 | 121 | 1 | 184-186
Article title

Examining with the Sintered Temperature of Mean Grain Size of B_4C-Al-Ni Composites by Ultrasonic Techniques

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EN
Abstracts
EN
Hard, tough, lightweight boron-carbide-reactive metal composites, boron-carbide-aluminum composites, are produced. The ultrasonic velocity and attenuation were measured on B_4C-Al-Ni ceramic-metal composites, which are sintered in the temperature range 500-1200°C, by using the pulse echo method. Ultrasonic velocity, ultrasonic attenuation and rate of screen heights of successive peaks were determined according to the pulse-echo method by using 2 MHz and 4 MHz probes. It was observed that the mean grain size of samples has been changed with the sintering temperature. The velocity was found to be pretty sample dependent at room temperature and increased with increasing sintering temperature. The ultrasonic attenuation at room temperature was found to be more sample dependent. The sintering temperature variation of ultrasonic attenuation exhibited broad minimum values around 1200C and sharp maximum values at 500°C. The increase observed in the temperature variation of longitudinal velocities and attenuation has been qualitatively explained with the help of the temperature variation of decrease value.
Keywords
EN
Publisher

Year
Volume
121
Issue
1
Pages
184-186
Physical description
Dates
published
2012-01
Contributors
author
  • Muş Alparslan University, Science Faculty Physics Dept., 49100, Muş, Turkey
author
  • Afyon Kocatepe University, Science Faculty Physics Dept., 03200, Afyonkarahisar, Turkey
References
  • 1. ASM Handbook 17, Nondestructive Evaluation and Quality Control, ASM International, Book News, Inc., Portland 1989
  • 2. J. Kim, P.K. Liaw, J, Minerals JOM 50, (1998)
  • 3. S. Hirsekon, P.W. Van Andel, U. Netzelmann, Nondestruct. Testing Eval. 15, 373 (2000)
  • 4. J. Saniie, T. Wang, N.M. Bilgutay, IEEE Trans. UFFC 36, 365 (1989)
  • 5. E. Kimmari, L. Kommel, Proc. Estonian Acad. Sci. Eng. 12, 399 (2006)
  • 6. S.P. Dodd, Ph.D. Thesis, University of Bath, 2002
  • 7. P. Palanichamy, A. Joseph, T. Jayakumar, Insight 36, 874 (1994)
  • 8. J. Szilard, Ultrasonic Testing: Non-Conventional Testing Techniques, Wiley, Chichester 1982, p. 217 %
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n156kz
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