Germanium‐Modified Cordierite Ceramics with Low Thermal Expansion

Dinesh Kumar Agrawal, V. S. STUBICAN, Y. MEHROTRA

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Magnesium cordierite ceramics modified by ionic substitution of Ge for Si were synthesized, fabricated, and characterized. The effect of the amount of ionic substitution on thermal expansion was investigated. Ionic substitution of ∼20% germanium for silicon reduces thermal expansion to zero at room temperature. A processing schedule to achieve nearly theoretical densities in germanium cordierite specimens was developed, and the microstructures of sintered samples were examined by scanning electron microscopy. Other thermal properties such as specific heat and thermal conductivity were also measured for the germanium‐modified cordierites.

Original languageEnglish (US)
Pages (from-to)847-851
Number of pages5
JournalJournal of the American Ceramic Society
Volume69
Issue number12
DOIs
StatePublished - Jan 1 1986

Fingerprint

thermal expansion
cordierite
ceramics
Germanium
Thermal expansion
germanium
substitution
Substitution reactions
Thermal conductivity
Silicon
thermal conductivity
Magnesium
silicon
Specific heat
magnesium
microstructure
Thermodynamic properties
scanning electron microscopy
Microstructure
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Agrawal, Dinesh Kumar ; STUBICAN, V. S. ; MEHROTRA, Y. / Germanium‐Modified Cordierite Ceramics with Low Thermal Expansion. In: Journal of the American Ceramic Society. 1986 ; Vol. 69, No. 12. pp. 847-851.
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Germanium‐Modified Cordierite Ceramics with Low Thermal Expansion. / Agrawal, Dinesh Kumar; STUBICAN, V. S.; MEHROTRA, Y.

In: Journal of the American Ceramic Society, Vol. 69, No. 12, 01.01.1986, p. 847-851.

Research output: Contribution to journalArticle

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