Relationship between Tensile and Bending Strength in Superplastic Diffusion Bonded Bodies between ZrO₂ and ZrO₂/Al₂O₃ Composite

Abstract

Fracture strength and fracture behavior using tensile and bending specimens machined from superplastic diffusion bonded bodies between ZrO₂ and ZrO₂/Al₂O₃ composite were compared and examined. The difference in fracture behavior by testing methods was not observed for all kinds of specimens. The strength ratio calculated by effective volume, effective area and Weibull modulus was influenced by fracture behavior. If we estimate the fracture strength of bonded material from those in different testing methods, fracture behavior of bonded material must be considered.