Accession Number : AD0681290

Title :   THE MAGNETIC PROPERTIES OF BINARY ALLOYS OF NON-EQUILIBRIUM STRUCTURE.

Descriptive Note : Final rept. 10 Jun 65-6 Oct 68,

Corporate Author : FRANKLIN INST RESEARCH LABS PHILADELPHIA PA

Personal Author(s) : Blades,John D.

Report Date : NOV 1968

Pagination or Media Count : 44

Abstract : A study of the magnetic properties of three binary alloy systems in the thin layered state was performed: Cu-Mn, Al-Mn and Er-Co. The films prepared by a fast quenching co-vapor deposition diffraction and transmission, and electron spin resonance measurements. The Cu-Mn system has been found to be a soluable face-centered cubic system and is 'magnetic' at CuMn. The Al-Mn system was found to be insoluable by the utilized fabrication process except for the high temperature phase at 50 weight percent Mn and was found to be nonmagnetic. At 16 weight percent Er-Co no metastable homogeneous crystallographic system was found, and the magnetic properties are those characteristic of Co. All films prepared indicated a trend towards the amorphous state, especially for binary systems with atomic diameter ratios of 10% or greater. Systems with atomic diameter ratios less than 10% appear to attain metastable crystal systems. Oxygen has been detected in the films prepared, but its role is not clear. The rapidly quenched thin layered system has significantly different physical properties from those of the bulk state where this has been possible to evaluate. (Author)

Descriptors :   (*COPPER ALLOYS, MAGNETIC PROPERTIES), (*MANGANESE ALLOYS, MAGNETIC PROPERTIES), (*ALUMINUM ALLOYS, MAGNETIC PROPERTIES), (*COBALT ALLOYS, MAGNETIC PROPERTIES), ERBIUM COMPOUNDS, INTERMETALLIC COMPOUNDS, STABILITY, X RAY DIFFRACTION, METAL FILMS, ELECTRON MICROSCOPY

Subject Categories : Metallurgy and Metallography
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE