Published September 15, 1989
| Version v1
Journal article
Crystallization kinetics in amorphous rare-earth--transition-metal alloys
Creators
- 1. Department of Physics, Kansas State University, Manhattan, Kansas 66506 (USA)
Description
The kinetics of crystallization have been examined in amorphous melt-spun R50T50 alloys with R=Nd,Tb and T=Fe,Co using the Kissinger method and the Johnson-Mehl-Avrami equation. The crystallization temperatures Tcr found were in the range of 192--493 degree C with the Fe- and Nd-containing alloys having the higher Tcr. The calculated activation energies were found to scale with the crystallization temperatures and were in the range of 1.61--2.48 eV. The Avrami exponent n obtained was in the range of 2.1--3.7 with the lower value occurring in Tb50Fe50. In Nd50Fe50, n=3, indicating a uniform three-dimensional growth
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 40
- Journal Issue
- 8
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 5441-5446
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21013469
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AMORPHOUS STATE; COBALT ALLOYS; CRYSTALLIZATION; HIGH TEMPERATURE; IRON ALLOYS; KINETIC EQUATIONS; LOW TEMPERATURE; MEDIUM TEMPERATURE; NEODYMIUM ALLOYS; SPIN GLASS STATE; TERBIUM ALLOYS
- Descriptors DEC
- ALLOYS; EQUATIONS; PHASE TRANSFORMATIONS; RARE EARTH ALLOYS