Accession Number:

AD0744153

Title:

Temperature Dependences of the Viscosity of Metals

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

• Bogdanovich, M. P.
• Baum, B. A.

Report Date:

1972-03-13

Pagination or Media Count:

10.0

Abstract:

For pure metals three types of given dependences are observed 1 the polytherm has its convex side facing the abscissa, which is probably explained by the weakening of bonds during the thermal expansion of a fluid 2 the curve has its concave side to the abscissa, the activation energy increases with a rise in temperature, which can be caused by an increase in the coordination number, the integral bond energy increases, regardless of the possible weakening of a single bond, this can also take place in the case of intensive metallization of primarily covalent bonds 3 the given linear dependence, the invariability of E with a rise in temperature is probably explained by the compensating effect of several factors.

Descriptors:

• *LIQUID METALS
• TEMPERATURE
• IRON
• LITHIUM
• COPPER
• SILICON
• CADMIUM
• GALLIUM
• TRANSLATIONS
• NICKEL
• VISCOSITY
• COBALT
• USSR
• ZINC

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE