Mechanical properties of alumina/zirconia composites. Issue 1 (January 2020)

• Record Type: Journal Article
• Authors: Boniecki, Marek; Sadowski, Tomasz; Gołębiewski, Przemysław; Węglarz, Helena; Piątkowska, Anna; Romaniec, Magdalena; Krzyżak, Konrad; Łosiewicz, Kamil
• Is Part Of: Ceramics international. Volume 46:Issue 1(2020)
• Page Start: 1033
• Page End: 1039
• Publication Date: 2020-01
• Subjects: Al2O3–ZrO2 ceramics -- Toughness -- Bending strength -- Subcritical crack growth; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.09.068
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Fracture toughness, bending strength, Young's modulus, hardness and subcritical crack growth were determined for six different alumina/zirconia composites. The bending strength was modelled using Weibull distribution. The fracture toughness, bending strength and resistance to subcritical crack growth increase as a function of ZrO2 content (stabilized with 3 mol% Y2 O3 ). The authors claim that a threshold stress in a three-parameter Weibull distribution may correspond to a threshold stress intensity factor in which the subcritical crack growth is negligible.