Experimental study and thermodynamic assessment of the ZrO2-DyO1.5 system
- 1. Stuttgart Univ. (Germany). Inst. fuer Nichtmetallische Anorganische Materialien
- 2. Max-Planck-Institut fuer Metallforschung, Stuttgart (Germany)
Description
The phase equilibria and thermodynamic properties in the ZrO2-DyO1.5 system have been studied using the experimental methods of X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, differential thermal analysis and high temperature drop calorimetry. The tetragonal + fluorite and fluorite + C-Dy2O3 phase equilibria between 1400 C and 1700 C have been determined, together with the enthalpy increments of the materials with 30 mol.% and 50 mol.% DyO1.5 in the temperature range 200-1400 C. Furthermore, the martensitic transformation temperatures (As,Ms) have been measured for the samples with 1 and 2 mol.% DyO1.5. Finally, thermodynamic assessment has been carried out using the experimental results obtained and literature data. (orig.)
Additional details
Publishing Information
- Journal Title
- International Journal of Materials Research
- Journal Volume
- 98
- Journal Issue
- 2
- Journal Page Range
- p. 91-98
- ISSN
- 1862-5282
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 38030927
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- DYSPROSIUM OXIDES; PHASE DIAGRAMS; SCANNING ELECTRON MICROSCOPY; SOLID SOLUTIONS; THERMODYNAMIC MODEL; THERMODYNAMIC PROPERTIES; X-RAY DIFFRACTION; ZIRCONIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; COHERENT SCATTERING; DIAGRAMS; DIFFRACTION; DISPERSIONS; DYSPROSIUM COMPOUNDS; ELECTRON MICROSCOPY; HOMOGENEOUS MIXTURES; INFORMATION; MATHEMATICAL MODELS; MICROSCOPY; MIXTURES; OXIDES; OXYGEN COMPOUNDS; PARTICLE MODELS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SOLUTIONS; STATISTICAL MODELS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS