Phase transformations of CdCr2Se4 under high pressures and temperatures
Creators
- 1. AN SSSR, Moscow (USSR). Inst. Fiziki Vysokikh Davlenij
- 2. AN SSSR, Moscow (USSR). Inst. Obshchej i Neorganicheskoj Khimii
Description
The influence of high pressure in the range of 0.5-36 Pa and the temperature range of 500-1000 deg C on phase composition and physical properties of CdCr2Se4 magnetic semiconductor has been studied. According to the data of X-ray phase analysis, magnetic phase analysis, measurements of density and electric conductivity p-T diagram of the compound in the mentioned range of temperatures and pressures has been plotted. It is ascertained that in case of hot pressing spinel modification of CdCr2Se4 decomposes into Cr2Se3 and CdSe at lower temperatures and pressures than it is required for polymorphous transformation of CdCr2Se4 into monoclinic modification. On the p-T diagram the dependence of CdCr2Se4 peritectoid decomposition temperature on the value of the pressure applied is plotted
Additional details
Additional titles
- Original title (Russian)
- Фазовые превращения CdCr
Publishing Information
- Journal Title
- Zhurnal Neorganicheskoj Khimii
- Journal Volume
- 35
- Journal Issue
- 5
- Series
- Zh. Neorg. Khim.
- Journal Page Range
- 1137-1141
- ISSN
- 0044-457X
- CODEN
- ZNOKA
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 22041745
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- CADMIUM SELENIDES; CERAMICS; CHROMIUM SELENIDES; CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; HIGH TEMPERATURE; HOT PRESSING; MAGNETIC SEMICONDUCTORS; MAGNETIC SUSCEPTIBILITY; PHASE DIAGRAMS; PHASE STUDIES; PHYSICAL PROPERTIES; PRESSURE DEPENDENCE; SAMPLE PREPARATION; TEMPERATURE DEPENDENCE; VERY HIGH PRESSURE; VERY HIGH TEMPERATURE
- Descriptors DEC
- CADMIUM COMPOUNDS; CHALCOGENIDES; CHROMIUM COMPOUNDS; DIAGRAMS; FABRICATION; INFORMATION; MAGNETIC PROPERTIES; MATERIALS; MATERIALS WORKING; PHASE TRANSFORMATIONS; PRESSING; SELENIDES; SELENIUM COMPOUNDS; SEMICONDUCTOR MATERIALS; TRANSITION ELEMENT COMPOUNDS