Published October 2002
| Version v1
Journal article
Pressure-induced structure phase transition on Y2O3
Creators
- 1. Chinese Academy of Sciences, Changchun (China). Fine Mechanics and Physics, Laboratory of Excited State Processes and Changchun Inst. of Optics
- 2. Jilin Univ., Changchun (China). National Lab of Superhard Materials
- 3. Chinese Academy of Sciences, Beijing (China). Inst. of High Energy Physics
Description
Diamond anvil cell (DAC) is adopted to carry out in situ high pressure measurements for Y2O3 powder sample in the range from ambient to 23 GPa, by using synchrotron X-ray diffraction method. Two structural phase transitions were observed in the pressure range. At P = 12.8 GPa, Y2O3 transforms from cubic to monoclinic structure. At P = 21.8 GPa, Y2O3 transforms from monoclinic to another new phase. However, the crystal structure of the new phase cannot be determined, because the diffraction pattern of the sample disappears. The decompressed sample is monoclinic structure, indicating that the first pressure-induced phase transition is irreversible
Additional details
Publishing Information
- Journal Title
- Nuclear Techniques
- Journal Volume
- 25
- Journal Issue
- 10
- Journal Page Range
- p. 841-844
- ISSN
- 0253-3219
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 34032806
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; POWDERS; PRESSURE DEPENDENCE; SYNCHROTRON RADIATION; X-RAY DIFFRACTION; YTTRIUM OXIDES
- Descriptors DEC
- BREMSSTRAHLUNG; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RADIATIONS; SCATTERING; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS