Published 1999
| Version v1
Book
Phase transition in KBr
Creators
- 1. Physics Department, Indian Institute of Technology, New Delhi (India)
- 2. G.G. University, Bilaspur (India)
- 3. National Physical Lab., New Delhi (India)
Description
In the present paper we have studied B1-B2 transition in KBr using the minimisation of Gibbs free energies of both the phases (NaCl, real and CsCl, hypothetical) using a three body potential model. This potential model includes Coulombic energy modified by including three body interactions effects and overlap repulsive energy. Gibbs free energy difference ΔG has been plotted against pressure and ΔG becomes zero at the phase transition pressure i.e. 1.825 GPa. To testify this result experimentally, we have measured phase transition pressure of KBr through cubic press of tungsten carbide anvil cell. Resistivity shows a sudden change in KBr at 1.8 GPa. (author)
Additional details
Publishing Information
- Publisher
- Universities Press
- Imprint Place
- Hyderabad (India)
- ISBN
- 81 7371 198 4
- Imprint Title
- Proceedings of the DAE solid state physics symposium. V. 41
- Imprint Pagination
- 551 p.
- Journal Page Range
- p. 345-346
Conference
- Title
- 41. DAE solid state physics symposium
- Dates
- 27-31 Dec 1998
- Place
- Kurukshetra (India)
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 31013517
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CESIUM; CESIUM CHLORIDES; COULOMB ENERGY; CRYSTAL-PHASE TRANSFORMATIONS; ELECTRIC CONDUCTIVITY; FREE ENTHALPY; POTASSIUM BROMIDES; PRESSURE DEPENDENCE; VERY HIGH PRESSURE
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALI METALS; BROMIDES; BROMINE COMPOUNDS; CESIUM COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; ELECTRICAL PROPERTIES; ELEMENTS; ENERGY; HALIDES; HALOGEN COMPOUNDS; METALS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; POTASSIUM COMPOUNDS; THERMODYNAMIC PROPERTIES
Optional Information
- Notes
- 4 refs., 1 fig.