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Defect Structures and Planar Faults in Plasma Spray Deposited MoSi2

Published online by Cambridge University Press:  01 January 1992

Bimal K. Kad ,
Kenneth S. Vecchio  and
Robert J. Asaro
Bimal K. Kad
Affiliation:
Dept. of Applied Mechanics and Engineering Sciences, MC-0411 University of California-SanDiego, LaJolla, CA 92093-0411
Kenneth S. Vecchio
Affiliation:
Dept. of Applied Mechanics and Engineering Sciences, MC-0411 University of California-SanDiego, LaJolla, CA 92093-0411
Robert J. Asaro
Affiliation:
Dept. of Applied Mechanics and Engineering Sciences, MC-0411 University of California-SanDiego, LaJolla, CA 92093-0411
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Abstract

Plasma-sprayed microstructures of MoSi2 have been studied by electron microscopy. The as-deposited microstructures are metastable and inhomogenous. Two new dissociations of [001] and 1/2[331] dislocations have been observed for the first time. The 1/2[331] is dissociated on the (lTO) plane bounding a superlattice intrinsic stacking fault (SISF). The reaction is given as: 1/2[331] = 1/4[331] + SISF + [331]. The [001] is also dissociated on (110) plane into two symmetrical components, with the reaction being given as [001] = 1/2[001] + 1/2[001].

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 1123
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. Mescheter, P.J. and Schwartz, D.S., J. Met., 11 (1989) 52 Google Scholar
2. Aikin, R.M. Jr., Mat. Sci. & Eng., A155 (1992) 121 Google Scholar
3. Tiwari, R., Sampath, S. and Herman, H., Mater. Res. Soc. Symp. proc., 213 (1991) 807 Google Scholar
4. Castro, R.G., Smith, R.W., Rollett, A.D. and Stanek, P., Mat. Sci. & Eng., A155 (1992) 101 Google Scholar
5. Kimura, K., Nakamura, M. and Hirano, T., J. Mat. Sci, 25 (1990) 2487 Google Scholar
6. Umakoshi, Y., Sakagami, T., Hirano and, T. Yamane, T., Acta. Met. 38 No.6 (1990) 909 Google Scholar
7. Mitchell, T.E., Castro, R.G. and Chadwick, M.M., Phil. Mag., A65, (1992) 1339 Google Scholar
8. Vecchio, K.S., Yu, L. S. and Meyers, M.A., Acta. Met., in review Google Scholar
9. Hazzledine, M., private communication Google Scholar
10. Maloy, S. A., Mitchell, T.E., Lewandowski, J.J. and Heuer, A.H., Phil. Mag. Lett, in review Google Scholar
11. Rao, Satish I., Dimiduk, Dennis M. and Mendiratta, Madan G., Phil. Mag., in review Google Scholar