Evaluation of fracture toughness of ceramic thin plates through modified single edge-precracked plate method. (1st July 2015)

• Record Type: Journal Article
• Authors: Miyazaki, Hiroyuki; Yoshizawa, Yu-ichi; Hirao, Kiyoshi; Ohji, Tatsuki
• Is Part Of: Scripta materialia. Volume 103(2015)
• Page Start: 34
• Page End: 36
• Publication Date: 2015-07-01
• Subjects: Toughness -- Ceramics -- Nitrides -- Insulator -- Substrate; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.03.001
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : In order to evaluate fracture toughness of thin plates of aluminum nitrides and silicon nitrides, a small, thin single edge notched plate with the thickness of 0.32 or 0.64 mm was glued on one side of a brass beam and the assembly was deformed in three-point bending to introduce the precrack. The flexural strength of the precracked specimen was measured using a special 3pt-bending fixture. The resultant fracture toughness was almost identical to those obtained for the standard-sized specimens.