Early-stage microstructure development in Bi-Sr-Ca-Cu-O glasses

Seong Jin Kim, Dunbar P Birnie, Donald R. Uhlmann

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Amorphous samples of Bi2Sr2Ca1Cu2Ox were produced by quenching from the melt. The early-stage microstructure development in these samples was monitored using XRD, DTA, and hot-stage TEM. It was observed that the molten glass undergoes phase separation during initial quenching and that subsequent refinement of these features generates the initial DTA exotherm during heating. This exotherm has been found for many related compositions, and has been shown not to correspond to crystallization. This initial phase separation strongly impacts the final microstructure by providing copious nucleation sites for the R-phase that ultimately crystallizes first.

Original languageEnglish
Pages (from-to)3087-3092
Number of pages6
JournalJournal of the American Ceramic Society
Volume76
Issue number12
Publication statusPublished - Dec 1993

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Phase separation
Differential thermal analysis
Quenching
Glass
Microstructure
Crystallization
Molten materials
Nucleation
Transmission electron microscopy
Heating
Chemical analysis

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Early-stage microstructure development in Bi-Sr-Ca-Cu-O glasses. / Kim, Seong Jin; Birnie, Dunbar P; Uhlmann, Donald R.

In: Journal of the American Ceramic Society, Vol. 76, No. 12, 12.1993, p. 3087-3092.

Research output: Contribution to journalArticle

Kim, Seong Jin ; Birnie, Dunbar P ; Uhlmann, Donald R. / Early-stage microstructure development in Bi-Sr-Ca-Cu-O glasses. In: Journal of the American Ceramic Society. 1993 ; Vol. 76, No. 12. pp. 3087-3092.
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