Weibull analysis of flexural strength of a SiC/MoSi[sub 2] composite

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90418-R· OSTI ID:6462914

Ting, Jyh Ming ^[1]

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1. Applied Sciences, Inc., Cedarville, OH (United States)

Although molybdenum disilicide (MoSi[sub 2]) exhibits excellent high temperature chemical stability and a melting point of 2,010C, its poor mechanical performance has severely limited its structural applications. As a results, effort has been made recently to strengthen MoSi[sub 2] by adding a second phase reinforcing material. The results from these studies show improved mechanical performance due to second phase addition. However, the data of all the studies for the mechanical strength, mostly flexural strength, were not analyzed statistically. It is believed that, due to the brittle nature of MoSi[sub 2] and the fact that the improvement in fracture toughness of MoSi[sub 2] by second phase addition has been limited, the strength data could be scattered. Therefore, as a part of the investigation on MoSi[sub 2]-based composites, the authors have analyzed the strength data of a 20% (by volume) SiC whiskers reinforced MoSi[sub 2] composite using Weibull statistics. A wide range of strength data, indeed, was found.

• OSTI ID: 6462914
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 29:5; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
FLEXURAL STRENGTH
MOLYBDENUM SILICIDES
SILICON CARBIDES
BRITTLENESS
DATA ANALYSIS
EXPERIMENTAL DATA
PERFORMANCE
REINFORCED MATERIALS
WHISKERS
CARBIDES
CARBON COMPOUNDS
CRYSTALS
DATA
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM COMPOUNDS
MONOCRYSTALS
NUMERICAL DATA
REFRACTORY METAL COMPOUNDS
SILICIDES
SILICON COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360603* - Materials- Properties