Hostname: page-component-7d684dbfc8-w65q4 Total loading time: 0 Render date: 2023-09-25T18:00:07.765Z Has data issue: false Feature Flags: { "corePageComponentGetUserInfoFromSharedSession": true, "coreDisableEcommerce": false, "coreDisableSocialShare": false, "coreDisableEcommerceForArticlePurchase": false, "coreDisableEcommerceForBookPurchase": false, "coreDisableEcommerceForElementPurchase": false, "coreUseNewShare": true, "useRatesEcommerce": true } hasContentIssue false

Epitaxy in the Crystallization of Feldspar Gels and Glasses

Published online by Cambridge University Press:  21 February 2011

Chunling Liu
Affiliation:
Intercollege Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
Sridhar Komarneni
Affiliation:
Also with the Department of Agronomy
Rustum Roy
Affiliation:
Intercollege Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
Get access

Abstract

The crystallization behaviors of stoichiometric feldspar gels and glasses before and after seeding have been compared, and the role of epitaxy in their crystallization upon seeding has been studied. The crystallization products were mainly determined by X-ray diffraction (XRD) analysis and epitaxy upon seeding was examined with a scanning electron microscope (SEM), and energy dispersive spectrometry (EDS). It was found that upon isostructural seeding, Na-and K-feldspars crystallized epitaxially from their gels and/or glasses. Little or no seeding effect was found in CaAl2Si2O8 and SrAl2Si2O8 gels and glasses. Isostructural seeding in BaAl2Si2O8 gels increased the formation of Ba-feldspar (monoclinic celsian) epitaxially, whereas without seeding hexacelsian was the crystallization product.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 McMillan, P. W., Glass-Ceramics. (Academic Press, London and New York, 1964) p. 33.Google Scholar
2 Smith, J. V. and Brown, W. L., Feldspar minerals. 2nd ed., Vol. 1 (Spring-Verlag, Berlin, Heidelberg, New York, London and Paris, 1988).CrossRefGoogle Scholar
3 Schairer, J. F. and Bowen, N. L., Am. J. Sci. 254, 129 (1956).CrossRefGoogle Scholar
4 Uhlmann, D. R., Yinnon, H. and Cranmer, D., Lunar Planet Sci. XI, 1178 (1980).Google Scholar
5 Fenn, P. M., Canadian Miner. 15, 135 (1977).Google Scholar
6 Cranmer, D., Salomaa, R., Yinnon, H. and Uhlmann, D. R., J. Non-Cry. Sol. 45, 127 (1981).CrossRefGoogle Scholar
7 Drummond III, C. H. and Lee, W. E., Ceram. Eng. Sci. Proc. 10, 1485 (1989).CrossRefGoogle Scholar
8 Bansal, N. P. and Hyatt, M. J., J. Mater. Res. 4, 1257 (1989).CrossRefGoogle Scholar
9 Drummond, III, C. H. and Bansal, N. P., Ceram. Eng. Sci. Proc. 11, 1072 (1990).CrossRefGoogle Scholar
10 Tredway, W. K. and Risbud, S. H., J. Non-Crystalline Solids 100, 278 (1988).CrossRefGoogle Scholar
11 Chen, M., Lee, W. E. and James, P. F., J. Non-Cryst. Solids 130, 322 (1991).CrossRefGoogle Scholar
12 Chen, M., Lee, W. E. and James, P. F., J. Non-Cryst. Solids 147 & 148, 532 (1992).CrossRefGoogle Scholar
13 Bahat, , D., J. Mat. Sci. 5, 805 (1970).CrossRefGoogle Scholar
14 Selvaraj, U., Liu, C., Komarneni, S., and Roy, R., J. Am. Ceram. Soc. 74, 1378 (1991).CrossRefGoogle Scholar
15 Liu, C., Komarneni, S., and Roy, R., J. Am. Ceram. Soc. 75, 2665 (1992).CrossRefGoogle Scholar
16 Liu, C., Komarneni, S., and Roy, R., J. Am. Ceram. Soc. accepted.Google Scholar
17 Liu, C., Komarneni, S., and Roy, R., J. Am. Ceram. Soc. to be published.Google Scholar
18 Hoffman, D. W., Roy, R. and Komarneni, S., J. Am. Ceram. Soc. 67, 468 (1984).CrossRefGoogle Scholar
19 Komarneni, S., Suwa, Y. and Roy, R., J. Am. Ceram. Soc. 69, C-155 (1986).Google Scholar
20 Taylor, W. H., “The structure of sanidine and other feldspars,” Z. Kristallogr., 85, 425 (1933).Google Scholar