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 language | English (US) |
|---|---|
| Pages (from-to) | 847-851 |
| Number of pages | 5 |
| Journal | Journal of the American Ceramic Society |
| Volume | 69 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jan 1 1986 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry
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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 journal › Article
TY - JOUR
T1 - Germanium‐Modified Cordierite Ceramics with Low Thermal Expansion
AU - Agrawal, Dinesh Kumar
AU - STUBICAN, V. S.
AU - MEHROTRA, Y.
PY - 1986/1/1
Y1 - 1986/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0022873715&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022873715&partnerID=8YFLogxK
U2 - 10.1111/j.1151-2916.1986.tb07382.x
DO - 10.1111/j.1151-2916.1986.tb07382.x
M3 - Article
VL - 69
SP - 847
EP - 851
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 12
ER -