Published 1994 | Version v1
Journal article Metadata-only

Mechanical properties of ZrO2 + 12 % CeO2 ceramics with CaO, Y2O3, Nb2O5 additions

Creators

  • 1. Moskovskij Aviatsionnyj Tekhnologicheskij Inst., Moscow (Russian Federation)

Description

A study was made on mechanical properties of transformation hardened ceramics of ZrO2 + 12 % CeO2 composition with CaO, Y2O3 and Nb2O5-additions in amount of 1 %. Doping elements are arranged in Ca, Y, Nb series by their efficiency for strength increase (reduction of average grain size). The level of material crack resistance correlates with lattice volume of tetragonal solid solution. It is shown that increase of crack resistance is related with intensity of destabilizing effect of doping addition on stability of tetragonal solid solution. The use of CaO as doping addition provides the maximal growth of strength and crack resistance

Additional details

Additional titles

Original title (Russian)
Механические свойства керамики ZrO

Publishing Information

Journal Title
Ogneupory
Journal Issue
no.2
Journal Page Range
p. 7-10.
ISSN
0369-7290
CODEN
OGNPA2

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
26020055
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CALCIUM OXIDES; CERAMICS; CERIUM OXIDES; CRACK PROPAGATION; MECHANICAL PROPERTIES; MICROSTRUCTURE; NIOBIUM OXIDES; SOLID SOLUTIONS; STRESS INTENSITY FACTORS; ZIRCONIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; DISPERSIONS; HOMOGENEOUS MIXTURES; MIXTURES; NIOBIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SOLUTIONS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS