IN-SITU SCANNING ACOUSTIC MICROSCOPY OF CRACK BRIDGING IN ALUMINA

High-resolution scanning acoustic microscopy has been used to observe crack bridging in a fine-grained polycrystalline alumina. The microscope is sensitive to the increased acoustic transmission across the crack from the interlocking and sliding asperities that cause crack shielding and -curve behav...

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Detalles Bibliográficos
Main Authors: Marrow, T, Briggs, G, Roberts, S
Formato: Journal article
Publicado: 1994