NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Containerless processing of fluoride glassGround-based experiments on glass formation, crystallization, surface tension, vaporization, and chemical durability of a zirconium-barium-lanthanum (ZBL) fluoride glass are summarized. In a container large, columnar grains grew out from the container-glass interface during cooling. The main crystalline phase was alpha BaZrF6. A ZBL glass sphere was levitated acoustically during Shuttle flight STS-11. The glass was melted and then cooled while being levitated (containerless). Crystallization in the recovered sample was very fine and mainly beta BaZr2F10, showing the influence of the container on the nucleation and microstructure of crystallization in the glass. Glass formation should be easier for a containerless glass than in a container.
Document ID
19910054345
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Doremus, Robert H.
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Materials Processing
Accession Number
91A38968
Funding Number(s)
CONTRACT_GRANT: JPL-955870
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available