Fracture Origins in Miniature Silicon Carbide Structures

Article Preview

Abstract:

Direct tension strength tests were conducted on chemical vapor deposited silicon carbide microspecimens. Three types of specimens were used: straight gage section, tapered gage section, and notched gage section. The average strengths and standards deviations were: 0.42 GPa ± 0.13 GPa; 0.47 GPa ± 0.16 GPa; and 0.68 GPa ± 0.19 GPa, respectively. The fracture origins were identified by fractographic analysis and were cracks in large grains next to surface grooves from the deep reactive ion etch (DRIE) process used to fabricate the specimens.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

62-69

Citation:

Online since:

July 2005

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] W.N. Sharpe, Jr., D. Danley, and D. LaVan: pp.497-512 in Small Specimen Test Techniques, ASTM STP 1329, W.R. Corwin, S.T. Rosinski, and E. Van Walle, Eds., (ASTM, West Conshohocken, PA, 1998).

DOI: 10.1520/stp1329-eb

Google Scholar

[2] W.N. Sharpe, Jr., D.A. LaVan, and R.L. Edwards: in Proc. Transducers '97, Chicago, IL, (1997), pp.607-610.

Google Scholar

[3] J. Bagdahn, W.N. Sharpe, Jr., and O. Jadaan: Journal of Microelectromechanical Systems, Vol. 12, (2003), pp.302-312.

Google Scholar

[4] W.N. Sharpe, Jr., O. Jadaan, G.M. Beheim, G.D. Quinn, N.N. Nemeth: Subm to J. Micromechanical Systems, (2004).

Google Scholar

[5] WWW. cvdmaterials. com/silicon. htm, Rohm and Haas, (2004).

Google Scholar

[6] G.M. Beheim: in Handbook of MEMS, Chapter 21 M. Gad-el-Hak, ed., (CRC Press, 2002).

Google Scholar

[7] Engineering Property Data on Selected Ceramics, Volume 2, Carbides, Metals and Ceramics Information Center, Battelle Columbus Laboratories, MCIC Report-HB-07, Aug. (1979).

Google Scholar

[8] NIST Structural Ceramics Database, SRD Database Number 30, NIST, www. ceramics. nist. gov/srd/scd/scdquery. htm, (2004).

DOI: 10.6028/nist.nsrds.154

Google Scholar

[9] S.S. Shinozaki and H. Sato: J. Amer. Ceram. Soc., Vol. 61, No. 9/10, (1978), pp.425-429.

Google Scholar

[10] B.V. Cocheram: ibid, Vol. 85, No. 3, (2002), pp.603-610.

Google Scholar

[11] B.O. Yavuz and R.E. Tressler: Ceram. Inter., Vol. 18 (1992), pp.19-26.

Google Scholar

[12] A. Saigal and N. Das: Adv. Cer. Mater., Vol. 3, No. 6, (1988), pp.580-593.

Google Scholar

[13] H. Kahn, N. Tayebi, R. Ballarini, R.L. Mullen, and A.H. Heuer: Mat. Res. Soc. Symp. Proc., Vol. 605, (2000), pp.25-30.

Google Scholar

[14] K.M. Jackson: Ph.D. thesis, The Johns Hopkins University, (2002).

Google Scholar

[15] W.N. Sharpe, Jr., O. Jadaan, N. Nemeth, and G. Beheim: Proceedings of the 2004 SEM Annual Conference, Costa Mesa, CA, Session 84, Paper 405 on CD, (2004).

Google Scholar

[16] G.D. Quinn and J.A. Salem: J. Amer. Ceram. Soc., Vol. 85, (2002), pp.873-880.

Google Scholar