Thermal expansion coefficients for indialite, emerald, and beryl
Schlenker, John L. ; Gibbs, G. V. ; Hill, Elizabeth G. ; Crews, Sharon S. ; Myers, R. H.
Springer
Published 1977
Springer
Published 1977
| ISSN: |
1432-2021
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Chemistry and Pharmacology
Geosciences
Physics
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| Notes: |
Abstract Thermal expansion coefficients ɛ1 and ɛ3 calculated for the hexagonal minerals indialite, emerald and beryl are, in general, small with ɛ3 being negative near room temperature. This unusual behavior leads to low volume coefficients of thermal expansion (β=2ɛ1+ɛ3) making these materials ideal ceramic bodies for catalyst carriers in air-pollution control. The temperature at which the c-cell edge length of beryl is a minimum is strongly dependent upon the presence of trace amounts of impurity atoms. This effect is ascribed to changes in the Grüneisen parameters.
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| Type of Medium: |
Electronic Resource
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| URL: |