Accession Number : AD0768989

Title :   Magnetic Structure Determination of Rare Earth-Cobalt-Iron Systems, RFe(x)Co(5-x) By Neutron Diffraction.

Descriptive Note : Annual technical rept. no. 2, 15 Mar 72-31 Jul 73,

Corporate Author : MISSOURI UNIV ROLLA GRADUATE CENTER FOR MATERIALS RESEARCH

Personal Author(s) : James,William J. ; Lemaire,Remy

Report Date : AUG 1973

Pagination or Media Count : 43

Abstract : Magnetic, x-ray and neutron diffraction studies were made to determine the magnetic and structural effects produced by substitution of Fe for Co in intermetallic compounds of the CaCu5-type structure with space group P6mmm. Compounds of Th(Co(1-x)Fe(x))5 and Y(x)La(1-x)(Co(y)Fe(1-y))4.5-5.0 were prepared by various induction methods and then annealed. The samples were characterized by x-ray powder analysis and metallographically. The easy axis of magnetization was determined by x-ray diffraction of powdered specimens oriented in a magnetic field. In all cases the axis is found to be vector c. (Modified author abstract)

Descriptors :   (*INTERMETALLIC COMPOUNDS, DIFFRACTION ANALYSIS), (*COBALT ALLOYS, MAGNETIC PROPERTIES), IRON ALLOYS, RARE EARTH ELEMENTS, NEUTRON DIFFRACTION, X RAY DIFFRACTION, THORIUM ALLOYS, YTTRIUM COMPOUNDS, LANTHANUM COMPOUNDS, CRYSTAL STRUCTURE

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE