Annealing induced structural changes and microcracking in Mo-Mo 3Si

X. L. Wang; J. H. Schneibel; Y. D. Wang; J. W. Richardson

doi:10.1557/proc-753-bb5.40

Annealing induced structural changes and microcracking in Mo-Mo 3Si

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

Overview

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Author(s)

X. L. Wang
J. H. Schneibel
Y. D. Wang
J. W. Richardson

Detail(s)

Original language	English
Pages (from-to)	399-404
Journal / Publication	Materials Research Society Symposium - Proceedings
Volume	753
Publication status	Published - 2003
Externally published	Yes

Conference

Title	Defect Properties and Related Phenomena in Intermetallic Alloys
Place	United States
City	Boston, MA
Period	3 - 5 December 2002

Link(s)

DOI	DOI https://doi.org/10.1557/proc-753-bb5.40 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0242322015&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(9e6fed90-abad-40b7-a896-93ea87218d71).html

Abstract

Cast Mo-Mo₃Si intermetallic composites develop microcracks after annealing at high temperature. Neutron diffraction, x-ray diffraction, composition analysis, and scanning electron microscopy have been used to characterize the structural changes induced by annealing of Mo-Mo₃Si. It is shown that the observed cracking cannot be attributed to differential thermal stresses that developed on cooling from the annealing temperature. Instead, the experimental data suggest that the cracks were initiated at high temperature, possibly due to diffusion of Si atomsi from supersaturated α-Mo to Mo₃Si.