Published December 2006
| Version v1
Journal article
Phase equilibria in the HfO2-ZrO2-CeO2 system at 1250 deg C
- 1. NANU, Inst. Problem Materialovedeniya im. I.N. Frantsevicha, Kiev (Ukraine)
Description
The 1250 deg C phase equilibria in the HfO2-ZrO2-CeO2 system have been studied for the first time over the entire composition triangle, and the 1250 deg C section of the HfO2-ZrO2-CeO2 phase diagram has been constructed using X-ray diffraction, optical microscopy, and scanning electron microscopy. No new phases have been identified in the system. Three regions of solid solutions based on the constituent oxides M-HfO2, T-ZrO2, and F-CeO2), three two-phase (T + F, T + M, and F + M) regions, and one three-phase (T + F + M) region have been located
Abstract (Russian)
С использованием рентгенофазового, петрографического анализов и электронной микроскопии впервые исследованы фазовые равновесия в системе ZrO2-HfO2-CeO2 при 1250 град С во всем интервале концентраций и построено изотермическое сечение диаграммы состояния системы при указанной температуре. Новые соединения в системе не обнаружены. Найдены три области твердых растворов различной протяженности на основе кристаллических модификаций исходных компонентов (М-НfO2, Т-ZrO2 и F-CeO2), три двухфазных (Т+ F, Т + М, F + М) и одна трехфазная (Т+ F + М) областиAdditional details
Additional titles
- Original title (Russian)
- Фазовые равновесия в системе HfO
Publishing Information
- Journal Title
- Neorganicheskie Materialy
- Journal Volume
- 42
- Journal Issue
- 12
- Journal Page Range
- p. 1481-1488
- ISSN
- 0002-337X
- CODEN
- NEOMB8
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 38038559
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CERIUM OXIDES; CONCENTRATION RATIO; CRYSTAL LATTICES; EQUILIBRIUM; HAFNIUM OXIDES; LATTICE PARAMETERS; MICROSTRUCTURE; PHASE DIAGRAMS; PHASE STUDIES; SOLID SOLUTIONS; TEMPERATURE RANGE 1000-4000 K; ZIRCONIUM OXIDES
- Descriptors DEC
- CERIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; DIAGRAMS; DIMENSIONLESS NUMBERS; DISPERSIONS; HAFNIUM COMPOUNDS; HOMOGENEOUS MIXTURES; INFORMATION; MIXTURES; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; SOLUTIONS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS
Optional Information
- Notes
- 23 refs., 3 figs., 2 tabs.