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Reactive atmosphere synthesis of sol-gel heavy metal fluoride glasses

Published online by Cambridge University Press:  31 January 2011

A.M. Mailhot ,
A. Elyamani  and
R.E. Riman
A.M. Mailhot
Affiliation:
Department of Ceramics, P.O. Box 909, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855-0909
A. Elyamani
Affiliation:
Department of Ceramics, P.O. Box 909, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855-0909
R.E. Riman
Affiliation:
Department of Ceramics, P.O. Box 909, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855-0909
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Abstract

A glass based on ZrF4 was synthesized by a combination of sol-gel and reactive atmosphere processing. Infrared spectroscopy and combustion analysis show that the fluorination process reduces the concentration of organic and hydroxide impurities. Chemical changes have occurred during fluorination; this is indicated by different x-ray diffraction traces and crystallization characteristics for the fluorinated sample compared to the oxide gel product. Chemical analysis from x-ray fluorescence indicates that the fluorinated gel is chemically similar to a melted glass of the same composition. Differential scanning calorimetry gives a glass transition temperature of 290 °C and a crystallization temperature of 390 °C. These values are consistent with those expected for a fluoride glass prepared by conventional methods.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 6 , June 1992 , pp. 1534 - 1540
Copyright
Copyright © Materials Research Society 1992

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