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Liquid Corrosion and High‐Temperature Oxidation Effects on Silicon Carbide/Titanium Diboride Composites
Author(s) -
Seshadri S.G.,
Srinivasan M.
Publication year - 1988
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1988.tb05833.x
Subject(s) - aqua regia , materials science , silicon carbide , titanium diboride , titanium , corrosion , ceramic , composite number , titanium carbide , metallurgy , carbide , composite material , high temperature corrosion , self propagating high temperature synthesis , microstructure , metal
A silicon carbide composite containing titanium diboride particulate reinforcement was subjected to room‐temperature acidic corrosion in aqua regia solutions for 200 h, and 50% NaOH+50% H 2 O and 10% HF+57% HNO 3 +33% H 2 O solutions for up to 500 h. A small increase in room‐temperature strength was observed after the aqua regia exposure. Separately, this ceramic was oxidized at 1400°C for 24 h and then tested for strength retention at room temperature. Contrary to the observations reported in the literature on similar material, there was no significant room‐temperature strength decrease in this particular composite.