Published October 9, 1995
| Version v1
Journal article
Metastable phases formed by ion mixing in the Hf-Nb system with a positive heat of formation
Creators
- 1. Dept. of Mater. Sci. and Eng., Tsinghua Univ., Beijing (China)
Description
Amorphization was achieved in the Hf-Nb system with a positive heat of formation (+6 kJ mol-1) by room-temperature 200 keV xenon ion mixing of multilayered films. On the basis of thermodynamic calculation, in which the interfacial free energy of multilayered films was specially taken into account, a Gibbs free-energy diagram was constructed and a relevant interpretation to the observed amorphization behaviour was proposed together with the kinetic considerations for the ion irradiation process. Also, two metastable FCC phases of Nb-rich and Hf-rich concentrations with different sizes were obtained by ion mixing. (authors)
Availability note (English)
Available online at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://www.iop.org/;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 7
- Journal Issue
- 41
- Journal Page Range
- p. 7959-7967
- ISSN
- 0953-8984
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- Romania
- INIS RN
- 32023674
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- AMORPHOUS STATE; BINARY MIXTURES; FCC LATTICES; FORMATION HEAT; HAFNIUM COMPOUNDS; IRRADIATION; KEV RANGE 100-1000; METASTABLE STATES; NIOBIUM COMPOUNDS; PHASE TRANSFORMATIONS; XENON IONS
- Descriptors DEC
- CHARGED PARTICLES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DISPERSIONS; ENERGY LEVELS; ENERGY RANGE; ENTHALPY; EXCITED STATES; IONS; KEV RANGE; MIXTURES; PHYSICAL PROPERTIES; REACTION HEAT; REFRACTORY METAL COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS