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High‐Temperature Multilayer Composites with Superplastic Interlayers
Author(s) -
Zhang GuoJun,
Yue XueMei,
Watanabe Tadahiko
Publication year - 1999
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.1151-2916.1999.tb02236.x
Subject(s) - superplasticity , materials science , composite material , layer (electronics) , composite number , microstructure , tape casting , casting , stress (linguistics) , work (physics) , ceramic , mechanical engineering , linguistics , philosophy , engineering
A high‐temperature multilayer composite (MLC) with hot hard layers and superplastic layers was proposed in this communication. The hard layer can provide the MLC high‐temperature strength; the superplastic layer can deform plastically at high temperatures, disperse the applied stress, and stop the crack from advancing. Such an MLC was prepared via tape casting in the Al 2 O 3 /MoSi 2 +Mo 2 B 5 system in the present work; in this system, Al 2 O 3 was the hard layer and MoSi 2 +Mo 2 B 5 was the superplastic layer. The microstructures and the stress‐displacement behaviors of the MLCs were investigated. Finally, the design rules for the high‐temperature MLCs were discussed briefly.