LIQUID-SOLID TRANSFORMATION KINETICS IN Al2O3
- Author
- Das, A. R. (Achintya Ranjan)
- Published
- United States : [publisher not identified], 1963.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1963. - Physical Description
- microfiche : negative ; 8 x 13 cm
- Additional Creators
- Fulrath, R. M.
- Summary
- A d-c arc plasma torch was used to subject sized particles of synthetic sapphire in the range of 9 to 104 microns to rapid melting and resolidiflcation. In order to study the formation of metastable phases of alumina, the size and apparent density of spheroidized particles were used as parameters in determining quenching rates. A hypothesis based on the kinetics of nucleation of the crystalline solid phases from the supercooled liquid droplets is proposed to explain the ratio of the metastable phases to the stable alpha phase. Experimental data relating this ratio with quench rates of the liquid droplets are presented. (auth)
- Report Numbers
- UCRL-11166; CONF-489-1
- Other Subject(s)
- Collection
- U.S. Atomic Energy Commission depository collection.
- Note
- DOE contract number: W-7405-ENG-48
NSA number: NSA-18-020534
OSTI Identifier 4009506
Research organization: California Univ., Berkeley, CA (US). Lawrence Radiation Lab.
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