Accession Number:

AD0757723

Title:

Evaluation of Multilayer Thin Films.

Descriptive Note:

Final rept. 28 Aug 72-17 Jan 73 on Phase 3,

Corporate Author:

ARTECH CORP FALLS CHURCH VA

Personal Author(s):

Report Date:

1973-03-01

Pagination or Media Count:

28.0

Abstract:

Multilayer thin-film structures were prepared and tested for strength by the bulge test and, in some cases, by uniaxial tensile testing on an Instron machine with a specially designed adapter. The calculated strengths of Al2O3-metal specimens ranged up to 113 kpsi. Those of aluminum-copper specimens ranged from 47 to 109 kpsi, while thin single films of copper alone gave 138-328 kpsi. Bulge testing of thin blown borosilicate glass gave values of calculated stress and strain lying on straight lines with positive intercepts on the stress axis, and coincidence of curves for increasing and decreasing test pressure showed that the specimens behaved elastically. Author Modified Abstract

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE