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Transformed Zro2 volume fraction in Al2o3 matrix multi-toughening composites

✍ Scribed by Koji Ikeda; Teruo Kishi

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
701 KB
Volume
40
Category
Article
ISSN
0013-7944

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✦ Synopsis

AlsO3 matrix composites multi-toughened with Sic whiskers and ZrO, particles are used to obtain information about what happens in multi-toughened composites. By the help of Raman microspectroscopy and scanning electron microscopy, the following characteristics are revealed: (1) the stability of tetragonal ZrO, depends on the volume fraction and the distance from whisker in as-received specimens; (2) the interaction between whisker and ZrO, particles provides additional fracture toughness and this interaction can be attributed to microcracking following transformation.

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