Effective thermal expansion coefficient of a sintered glass–eucryptite composite

O. N. Kryukova, A. G. Knyazeva, V. M. Pogrebenkov, K. S. Kostikov, I. Sevostianov

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The paper focuses on a glass–ceramic composite consisting of lead borate glass matrix containing isolated eucryptite granules (hereafter called inhomogeneities) having negative thermal expansion coefficient. We discuss the dependence of the overall thermal expansion on the size of the particles and the temperature of sintering as well as the process of the diffusion of lithium from eucryptite into the glass matrix. The latter leads to the formation of interphase zones between the matrix and inhomogeneities. The overall thermal expansion coefficient is measured experimentally and modeled using various micromechanical schemes. The best agreement for the entire range of variation of the eucryptite volume fraction is provided by Maxwell homogenization scheme.

Original languageEnglish
Pages (from-to)11314-11325
Number of pages12
JournalJournal of Materials Science
Volume52
Issue number19
DOIs
Publication statusPublished - 1 Oct 2017

Fingerprint

Thermal expansion
Glass
Borates
Composite materials
Lithium
Volume fraction
Sintering
Temperature
Negative thermal expansion

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Effective thermal expansion coefficient of a sintered glass–eucryptite composite. / Kryukova, O. N.; Knyazeva, A. G.; Pogrebenkov, V. M.; Kostikov, K. S.; Sevostianov, I.

In: Journal of Materials Science, Vol. 52, No. 19, 01.10.2017, p. 11314-11325.

Research output: Contribution to journalArticle

Kryukova, O. N. ; Knyazeva, A. G. ; Pogrebenkov, V. M. ; Kostikov, K. S. ; Sevostianov, I. / Effective thermal expansion coefficient of a sintered glass–eucryptite composite. In: Journal of Materials Science. 2017 ; Vol. 52, No. 19. pp. 11314-11325.
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