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Garnet melt viscosity, surface tension and drainageGood surface morphology and layer uniformity of LPE-grown Bi YIG films are favored by fast melt removal after growth. Three flux modifying oxides: MoO3, V2O3, and WO3 are compared with respect to their effect on viscosity, surface tension and melt drainage. All three oxides increased the viscosities of Bi-garnet melts, but the viscosities and drainage times of V2O3 and MoO3 modified melts were smaller than those of WO3 modified melts. The liquid-gas surface tension was found to be temperature independent. The drainage process was strongly temperature dependent, 40 to 60 kcal/mol, whereas the viscosities of melts had activation energies of 11 to 16 kcal/mol. Contact angles of 16 + or - 2 deg were measured on frozen melt drops.
Document ID
19870023594
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Luther, L. C.
(AT&T Bell Laboratories Murray Hill, NJ, United States)
Date Acquired
August 13, 2013
Publication Date
June 1, 1986
Publication Information
Publication: Journal of Crystal Growth
Volume: 75
ISSN: 0022-0248
Subject Category
Solid-State Physics
Accession Number
87A10868
Funding Number(s)
CONTRACT_GRANT: F33615-81-C-1404
Distribution Limits
Public
Copyright
Other

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