Mechanical properties and defect chemistry

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A brief overview of changes in mechanical properties of solids driven by the chemistry of point defects is given. Two major types of effects are considered: direct effects caused by non-interacting point defects and collective effects induced by interacting point defects. The first group includes (1) changes in the linear dimensions of a solid in response to a change in defect concentration and (2) stress induced due to an inhomogeneous distribution of point defects, a so-called chemical stress. The second group includes (1) defect order-disorder transitions accompanied by self-strain and (2) deviations from linear elastic behavior due to the dissociation/association of point defects. All of the above become important if the concentration of point defects is very high (above 1021 cm- 3). These effects may lead to significant anomalies in mechanical properties: spontaneous stress and strain and changes in elastic constants. These effects may significantly affect the application of materials with a large concentration of point defects.

Original languageEnglish
Pages (from-to)1639-1642
Number of pages4
JournalSolid State Ionics
Volume177
Issue number19-25 SPEC. ISS.
DOIs
Publication statusPublished - Oct 15 2006

Fingerprint

Point defects
point defects
mechanical properties
chemistry
Mechanical properties
Defects
defects
Order disorder transitions
Elastic constants
elastic properties
Association reactions
disorders
dissociation
anomalies
deviation

Keywords

  • Elasticity
  • Ionic conductors
  • Point defects

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Mechanical properties and defect chemistry. / Lubomirsky, Igor.

In: Solid State Ionics, Vol. 177, No. 19-25 SPEC. ISS., 15.10.2006, p. 1639-1642.

Research output: Contribution to journalArticle

Lubomirsky, Igor. / Mechanical properties and defect chemistry. In: Solid State Ionics. 2006 ; Vol. 177, No. 19-25 SPEC. ISS. pp. 1639-1642.
@article{ff5b0cf53b634c6499d527216c8832e5,
title = "Mechanical properties and defect chemistry",
abstract = "A brief overview of changes in mechanical properties of solids driven by the chemistry of point defects is given. Two major types of effects are considered: direct effects caused by non-interacting point defects and collective effects induced by interacting point defects. The first group includes (1) changes in the linear dimensions of a solid in response to a change in defect concentration and (2) stress induced due to an inhomogeneous distribution of point defects, a so-called chemical stress. The second group includes (1) defect order-disorder transitions accompanied by self-strain and (2) deviations from linear elastic behavior due to the dissociation/association of point defects. All of the above become important if the concentration of point defects is very high (above 1021 cm- 3). These effects may lead to significant anomalies in mechanical properties: spontaneous stress and strain and changes in elastic constants. These effects may significantly affect the application of materials with a large concentration of point defects.",
keywords = "Elasticity, Ionic conductors, Point defects",
author = "Igor Lubomirsky",
year = "2006",
month = "10",
day = "15",
doi = "10.1016/j.ssi.2006.01.020",
language = "English",
volume = "177",
pages = "1639--1642",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier",
number = "19-25 SPEC. ISS.",

}

TY - JOUR

T1 - Mechanical properties and defect chemistry

AU - Lubomirsky, Igor

PY - 2006/10/15

Y1 - 2006/10/15

N2 - A brief overview of changes in mechanical properties of solids driven by the chemistry of point defects is given. Two major types of effects are considered: direct effects caused by non-interacting point defects and collective effects induced by interacting point defects. The first group includes (1) changes in the linear dimensions of a solid in response to a change in defect concentration and (2) stress induced due to an inhomogeneous distribution of point defects, a so-called chemical stress. The second group includes (1) defect order-disorder transitions accompanied by self-strain and (2) deviations from linear elastic behavior due to the dissociation/association of point defects. All of the above become important if the concentration of point defects is very high (above 1021 cm- 3). These effects may lead to significant anomalies in mechanical properties: spontaneous stress and strain and changes in elastic constants. These effects may significantly affect the application of materials with a large concentration of point defects.

AB - A brief overview of changes in mechanical properties of solids driven by the chemistry of point defects is given. Two major types of effects are considered: direct effects caused by non-interacting point defects and collective effects induced by interacting point defects. The first group includes (1) changes in the linear dimensions of a solid in response to a change in defect concentration and (2) stress induced due to an inhomogeneous distribution of point defects, a so-called chemical stress. The second group includes (1) defect order-disorder transitions accompanied by self-strain and (2) deviations from linear elastic behavior due to the dissociation/association of point defects. All of the above become important if the concentration of point defects is very high (above 1021 cm- 3). These effects may lead to significant anomalies in mechanical properties: spontaneous stress and strain and changes in elastic constants. These effects may significantly affect the application of materials with a large concentration of point defects.

KW - Elasticity

KW - Ionic conductors

KW - Point defects

UR - http://www.scopus.com/inward/record.url?scp=33750017132&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750017132&partnerID=8YFLogxK

U2 - 10.1016/j.ssi.2006.01.020

DO - 10.1016/j.ssi.2006.01.020

M3 - Article

VL - 177

SP - 1639

EP - 1642

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 19-25 SPEC. ISS.

ER -