The neodymium-gallium system
Description
The binary phase diagram of the neodymium-gallium system has been investigated by differential thermal analysis (DTA), X-ray diffraction and metallography. Four intermetallic compounds were identified: Nd3Ga, Nd5Ga3, NdGa and NdGa2. The DTA results indicate the possible existence of two intermetallic compounds, unidentified as yet, on the gallium-rich side. NdGa2 melts congruently at a temperature of 14880C and the other compounds form peritectically. Two eutectic reactions were found in this system: one at 6510C on the neodymium-rich side and a second at 300C on the gallium-rich side. The allotropic transition of neodymium is lowered from 8670C to 8130C when more than 1 at.% gallium is added. The structure of Nd3Ga was found to be of the cubic Cu3Au type and the lattice parameter was found to be a=4.676+-0.008 A. (Auth.)
Additional details
Publishing Information
- Journal Title
- J. Less-Common Met.
- Journal Volume
- 61
- Journal Issue
- 2
- Series
- J. Less-Common Met.
- Journal Page Range
- 293-299
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- Switzerland
- INIS RN
- 10451757
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOTROPY; CUBIC LATTICES; DIFFERENTIAL THERMAL ANALYSIS; GALLIUM ALLOYS; INTERMETALLIC COMPOUNDS; LATTICE PARAMETERS; METALLOGRAPHY; NEODYMIUM ALLOYS; PHASE DIAGRAMS; PHASE STUDIES; PHASE TRANSFORMATIONS; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIAGRAMS; DIFFRACTION; INFORMATION; RARE EARTH ALLOYS; SCATTERING; THERMAL ANALYSIS