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Surface tension of zinc: the positive temperature coefficient.

Authors
Falke-WL; Schwaneke-AE; Nash-RW
Source
Metall Trans 1977 Jun; 8B:301-303
NIOSHTIC No.
10010000
Abstract
The possible temperature coefficient of the surface tension of molten zinc has been confirmed experimentally with a maximum-bubble- pressure (mbp) system. The possible effects of the high vapor pressure of molten zinc on the surface tension have been checked by making the measurements at atmospheric pressure and repeating at 1,800 torr. The measurements were made on 99.999 pct zinc ranging from 436 deg to 806 deg c in an improved twin-tube mbp system. Results are that, over the given temperature range, the surface tension (y) of zinc is given by y (dynes/cm) = 839.7-125.7 E-0.00941 (T-419.5). The temperature (t) is in degrees centigrade. A total of 130 experimental values were determined with a correlation index of 0.98 With the equation. Comparison of this result with others in the literature are discussed.
Keywords
Zinc-compounds; Temperature-effects; Thermal-effects; Thermal-reactions; Metallurgical-processes
CODEN
MTTBCR
CAS No.
7440-66-6
Publication Date
19770601
Document Type
OP; Journal Article
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
OP 55-77
ISSN
0360-2141
NIOSH Division
RORC
Source Name
Metallurgical Transactions. B. Process Metallurgy
State
NV
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