Accession Number : AD0829222

Title :   MAGNETIC TRANSITION TEMPERATURES OF INTERMETALLIC COMPOUNDS OF RARE EARTH WITH COBALT AND IRON.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Salmans, Lee R.

Report Date : JUN 1968

Pagination or Media Count : 91

Abstract : The Curie temperature (Tc) of over fifty intermetallic compounds of the R2Fe17, R6Fe23, RFe3, RFe2, RCo5, and R2Co7 series was determined (R is a rare earth or yttrium). Initial permeability vs temperature curves obtained from a small ac field were used to determine Tc. In the R-Fe series Tc ranged from -182C (Ce2Fe17) through a maximum of 520C (GdFe2) to -38C (Lu2Fe17). The Curie temperature of Ce-, Pr-, Nd-, Sm-, and Y-Co5 ranged from 374C (CeCo5) to 724C (SmCo5). The R2Co7 series ranged from a Tc of -122C (Ce2Co7) through a peak of 489C (Gd2Co7) to 186C (Lu2Co7). (Author)

Descriptors :   *FERROMAGNETISM), (*INTERMETALLIC COMPOUNDS, RARE EARTH COMPOUNDS, IRON COMPOUNDS, COBALT COMPOUNDS, ANTIFERROMAGNETISM, TRANSITION TEMPERATURE, PERMEABILITY(MAGNETIC), PHASE STUDIES, THESES.

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE