Thermal properties of Sr3Ga2Ge4O14 single crystals grown by the vertical Bridgman method
Creators
- 1. Shanghai Institute of Ceramics, Chinese Academy of Science, No. 1295 Dingxi Road, Shanghai 200050 (China)
Description
Sr3Ga2Ge4O14 (SGG) has been grown by the vertical Bridgman method. The dielectric constants ε11T and ε33T at room temperature is 13.61 and 18.18, respectively. The dielectric measurements show that SGG crystals display relative high temperature stability and high frequency stability. Thermal properties including specific heat, thermal diffusivity, thermal conductivity and thermal expansion have been investigated as a function of temperature for the first time. The specific heat of the SGG crystals has been measured to be 0.459J/(gK) at 298K. The thermal diffusivity and the thermal conductivity for SGG crystals are about 0.540mm2/s and 1.243W/(mK) at 298K, respectively. The average thermal expansion coefficients along the a- and c-directions of SGG crystals, are calculated from 298 to 973K as α11=6.5x10-6K-1 and α33=5.8x10-6K-1, respectively
Additional details
Identifiers
- DOI
- 10.1016/j.mseb.2006.11.013;
- PII
- S0921-5107(06)00672-6;
Publishing Information
- Journal Title
- Materials Science and Engineering. B, Solid-State Materials for Advanced Technology
- Journal Volume
- 137
- Journal Issue
- 1-3
- Journal Page Range
- p. 180-183
- ISSN
- 0921-5107
- CODEN
- MSBTEK
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38087213
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BRIDGMAN METHOD; CRYSTAL GROWTH; DIELECTRIC MATERIALS; GALLIUM OXIDES; MONOCRYSTALS; PERMITTIVITY; SPECIFIC HEAT; STABILITY; STRONTIUM OXIDES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE; THERMAL CONDUCTIVITY; THERMAL DIFFUSIVITY; THERMAL EXPANSION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CRYSTAL GROWTH METHODS; CRYSTALS; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; EXPANSION; GALLIUM COMPOUNDS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; THERMODYNAMIC PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.