Accession Number : AD0800836

Title :   RESEARCH ON THE DEPOSITION OF MAGNETIC INTERMETALLIC COMPOUNDS IN THIN FILMS.

Descriptive Note : Summary technical rept. 31 May 65-31 Mar 66,

Corporate Author : GENERAL ELECTRIC CO SCHENECTADY NY RESEARCH AND DEVELOPMENT CENTER

Personal Author(s) : Hardt, Richard W.

Report Date : AUG 1966

Pagination or Media Count : 33

Abstract : A process for the vacuum deposition of thin films of intermetallic compounds of cobalt and yttrium, samarium, or neodymium, was developed. The process involved the codeposition of elemental vapors that were separately evaporated from adjacent sources. Changes in frequency of oscillating quartz crystals placed in the path of the evaporating metals, were used as monitors of the amount of deposition that had occurred, and allowed corrective control of the evaporation rates. Thin films of the desired stoichiometric compositions, Co5R, were produced in an extensive series of sequential experiments, but the structural compositions of the films were not well identified, since x-ray diffraction analyses did not indicate crystallinity. Samples of samarium-cobalt of varying compositions have been submitted to the Air Force Materials Laboratory where magneto-optic effects will be studied. Yttrium-cobalt and neodymium-cobalt films are being prepared and will be submitted before termination of the contract period. (Author)

Descriptors :   (*DEPOSITION, INTERMETALLIC COMPOUNDS), (*INTERMETALLIC COMPOUNDS, MAGNETIC PROPERTIES), (*VAPOR PLATING, FILMS), COBALT COMPOUNDS, YTTRIUM COMPOUNDS, SAMARIUM COMPOUNDS, NEODYMIUM COMPOUNDS, QUARTZ, X RAY DIFFRACTION, MONITORS, INTERFEROMETERS, ANNEALING, DENSITY, THICKNESS.

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE