Open AccessInelastic deformation of ceramics based on zirconium dioxide
Author(s) -
Е. Е. Deryugin,
Н. А. Наркевич,
И. А. Даниленко,
З. Шмаудер
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/971/2/022082
Subject(s) - materials science , ceramic , chevron (anatomy) , wedge (geometry) , composite material , zirconium , cracking , deformation (meteorology) , zirconium dioxide , metallurgy , geology , geometry , paleontology , mathematics
The reasons for the nonlinear stage of deformation of two-cantilever specimens with a chevron notch under loading by the wedge method are investigated. Three main reasons are analyzed: plastic deformation, stable crack extension in the chevron notch zone, and t→m phase transformation induced by stress concentration. It is shown that the main reason for the inelastic behavior of ceramics is t→m transformation.