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Title: Porosity and mechanical properties of zirconium ceramics

The article studies the porous ceramics consisting of ultra-fine ZrO{sub 2} powders. The porosity of ceramic samples varied from 15% to 80%. The structure of the ceramic materials had a cellular configuration. The distinctive feature of all experimentally obtained strain diagrams is their nonlinearity at low deformations characterized by the parabolic law. It was shown that the observed nonlinear elasticity for low deformations shown in strain diagrams is due to the mechanical instability of cellular elements of the ceramic framework.
Authors:
;  [1] ; ;  [2] ;  [3] ;  [3]
  1. National Research Tomsk State University, Tomsk, 634050, Russia and Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
  2. National Research Tomsk State University, Tomsk, 634050 (Russian Federation)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22390408
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1623; Journal Issue: 1; Conference: International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk (Russian Federation), 3-5 Sep 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; DEFORMATION; ELASTICITY; NONLINEAR PROBLEMS; PARTICLE SIZE; POROSITY; POROUS MATERIALS; STRAINS; ZIRCONIUM; ZIRCONIUM OXIDES