Accession Number:

AD0602629

Title:

PREPARATION OF MOLYBDENUM SINGLE CRYSTALS BY ELECTRON-BEAM FLOATING-ZONE MELTING,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Report Date:

1964-07-10

Pagination or Media Count:

12.0

Abstract:

The paper briefly describes the design and operation of a 1.5 kw electron-beam floating-zone melting unit. Using this unit molybdenum single crystals 4 mm in diam eter and 2 to 5 cm long were prepared, and the laboratory technique of preparing single crystals with controlled orientation was mastered. The molybdenum single crystals prepared showed no preferred orientation microscopic examination disclosed a large number of terraces on the crystal surface with step heights ranging from 0.000023 to 0.00063 cm, which were tentatively identified as evaporation terraces. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE