Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-28T05:04:05.899Z Has data issue: false hasContentIssue false
  • English
  • Français

Microstructures and Mechanical Properties of MoSi2 / Mo5Si3 / Mo5Si3C Ternary Eutectic Composite

Published online by Cambridge University Press:  12 February 2015

Hirotaka Matsunoshita ,
Kosuke Fujiwara ,
Yuta Sasai ,
Yuichiro Kondo ,
Kyosuke Kishida  and
Haruyuki Inui
Hirotaka Matsunoshita
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Kosuke Fujiwara
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Yuta Sasai
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Yuichiro Kondo
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Kyosuke Kishida
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan Center for Elements Strategy Initiative for Structural Materials (ESISM), Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Haruyuki Inui
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan Center for Elements Strategy Initiative for Structural Materials (ESISM), Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Get access

Abstract

Microstructures and mechanical properties of directionally solidified (DS) MoSi2 / Mo5Si3 / Mo5Si3C ternary eutectic composites were investigated. Ternary eutectic microstructure of a script-lamellar type that is characterized by rod-shaped Mo5Si3 and Mo5Si3C phases extending along the growth direction in the MoSi2 single crystalline matrix was developed simply by directional solidification at a growth rate of 10 mm/h. Compression tests along $[{\rm{1}}\mathop 1\limits^- 0]_{MoSi_2 }$ nearly parallel to the growth direction revealed that the DS ternary eutectic composites were plastically deformed above 1000 °C. Yield stresses of the DS ternary eutectic composites were much higher than those of binary composites mainly because of a smaller average thickness of MoSi2 matrix.

Keywords

microstructurescanning electron microscopy (SEM)stress/strain relationship
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1760: Symposium YY – Advanced Structural and Functional Intermetallic-Based Alloys , 2015 , mrsf14-1760-yy03-04
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Vasudevan, A. K. and Petrovic, J. J., Mater. Sci. Eng. A155, 1 (1992).CrossRefGoogle Scholar
Mason, D. P., Van Aken, D. C. and Mansfield, J. F., Acta Metal. Mater. 43 1189 (1995).CrossRefGoogle Scholar
Mason, D. P. and Van Aken, D. C., Acta Metal. Mater. 43 1201 (1995).CrossRefGoogle Scholar
Xiao, S. Q., Maloy, S. A., Heuer, A. H. and Dahmen, U., Phil. Mag. A 72 997 (1995).CrossRefGoogle Scholar
Fujiwara, K., Matsunoshita, H., Sasai, Y., Kishida, K. and Inui, H., Intermetallics 52 72 (2014).CrossRefGoogle Scholar
Ito, K., Inui, H., Shirai, Y. and Yamaguchi, M., Phil. Mag. A 72 1075 (1995).CrossRefGoogle Scholar
Matsunoshita, H., Sasai, Y., Inoue, A., Kishida, K. and Inui, H., unpublished work .Google Scholar
Inui, H., Moriwaki, M., Okamoto, N. and Yamaguchi, M., Acta Mater. 51 1409 (2003).CrossRefGoogle Scholar
Kishida, K., Fujiwara, M., Adachi, H., Tanaka, K. and Inui, H., Acta Mater. 58 846 (2010).CrossRefGoogle Scholar
Ito, K., Yano, T., Nakamoto, T., Inui, H. and Yamaguchi, M., Acta. Mater. 47 937 (1999)CrossRefGoogle Scholar
Inui, H., Moriwaki, M. and Yamaguchi, M., Intermetallics 6 723 (1998)CrossRefGoogle Scholar
Sasai, Y., Inoue, A., Fujiwara, K., Kishida, K. and Inui, H., MRS Proceedings 1516 195 (2013).CrossRefGoogle Scholar
Hayashi, T., Ito, K. and Tanaka, K., Intermetallics 11 835 (2003).CrossRefGoogle Scholar