Accession Number:

AD0742416

Title:

True Structure of Molybdenum and Tungsten Single Crystals Grown from the Gas Phase

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1972-02-17

Pagination or Media Count:

22.0

Abstract:

It is shown that the morphology, and crystal perfection of single crystals of molybdenum and tungsten obtained by vapor deposition using the thermal decomposition of halides, depends on the supersaturation. The crystals were examined by metallographic investigations and X-rays to determine position, extension, and kind of the disturbances. At lower supersaturations with a given equilibrium form face, disturbances appears regularly in layers and within defined crystallographic positions, which depend on the growth direction in different planes.

Subject Categories:

  • Metallurgy and Metallography
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE