Accession Number:

AD0619193

Title:

DETERMINATION OF INTERFACIAL ENERGIES BETWEEN SOLID COPPER AND BINARY BISMUTH-THALLIUM LIQUID METAL COMPOSITIONS

Descriptive Note:

Test rept.

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s):

Report Date:

1965-07-01

Pagination or Media Count:

22.0

Abstract:

Interfacial energies were determined at 1250 F, 950 F, and 650 F between solid copper and binary bismuththallium liquid metal alloys. Interfacial energies were determined between the copper and the liquid metal environment as the relative proportions of bismuth and thallium in the liquid metal were varied. Results showed that progressive additions of thallium to bismuth raises the interfacial energies between the resulting liquid metal environments and the solid copper. Interfacial energy values calculated for 1250 F ranged from 278 ergssq cm for a liquid metal composition of 100 per cent bismuth to 360 ergssq cm for a composition of 100 per cent thallium. Interfacial energies between solid copper and liquid bismuth-thallium environments increase as the temperature decreases in the range of 1250 F to 650 F. The effect of thallium on increasing the interfacial energy becomes more pronounced as the temperature decreases.

Subject Categories:

  • Metallurgy and Metallography
  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE