A Facile Method to Control Cooling Rate and its Possible Application

A facile approach to control the cooling rate of high temperature charging was first suggested. The furnace tube surrounded with electrical wires was put into Dewar flask whose degree of vacuum was controlled. Switching off the power and changing the degree of vacuum when the temperature of charging...

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Bibliographic Details
Published in:Crystal research and technology (1979) 2002-02, Vol.37 (2-3), p.231-234
Main Authors: He, Y.Z., Lang, P.L., Zhao, Y.G., Cao, B.S.
Format: Article
Language:English
Subjects:
cooling rate
Cross-disciplinary physics: materials science
rheology
crystal growth
Dewar flask
Exact sciences and technology
Materials science
Methods of crystal growth
physics of crystal growth
Physics
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Summary:A facile approach to control the cooling rate of high temperature charging was first suggested. The furnace tube surrounded with electrical wires was put into Dewar flask whose degree of vacuum was controlled. Switching off the power and changing the degree of vacuum when the temperature of charging was heated to the desired value. Since the Dewar's thermal conducting coefficient mainly depends on the degree of vacuum, so the cooling rate of the charging was controllable to a great extent. A corresponding experiment was carried out to prove its feasibility.
ISSN:0232-1300
1521-4079
DOI:10.1002/1521-4079(200202)37:2/3<231::AID-CRAT231>3.0.CO;2-X