Ductile Phase Toughening of MoSi2-Chemical Compatibility and Fracture Toughness-Reference-Cited by-同舟云学术

Ductile Phase Toughening of MoSi2-Chemical Compatibility and Fracture Toughness

Published:1990 Issue: Volume:194 Page:
ISSN:0272-9172
Container-title:MRS Proceedings
language:en
Short-container-title:MRS Proc.

Author:

Xiao L.,Kim Y. S.,Abbaschian Reza

Abstract

AbstractChemical compatibility between oxide coated Nb filament reinforcements and MoSi2 was investigated. It was determined that ZrO2, Al2O3, and mullite coatings were chemically compatible with both Nb and MoSi2. Comparison between coated and uncoated filaments indicated that the coatings reduced the thickness of the interaction zone. The fracture toughness of the Nb filament reinforced composites showed an increase, while W filament reinforced composite showed a decrease, in the toughness compared to that of the matrix. The results are discussed in terms of the mismatches in the coefficients of thermal expansion and the bonding characteristics of the reinforcement/matrix interface.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

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