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Temperature dependence of thermal diffusivity, specific heat capacity, and thermal conductivity for several types of rocks
Miao, SQ; Li, HP; Chen, G
Corresponding AuthorLi, HP
2014
Source PublicationJournal of Thermal Analysis and Calorimetry
Volume115Issue:2Pages:1057-1063
Abstract

The thermo-physical properties for four rock types (granite, granodiorite, gabbro, and garnet amphibolite) from room temperature to 1,173 K were investigated. Thermal diffusivity and specific heat capacity were measured using the laser-flash technique and heat flux differential scanning calorimetry, respectively. Combined with the density data, rock thermal conductivities were calculated. Rock thermal diffusivity and conductivity decrease as the temperature increases and approach a constant value at high temperatures. At room temperature, the measured thermal conductivity is consistently near or lower than the calculated conductivity using the mineral series model, which suggests that real thermal conduction is more complicated than is depicted in the model. Therefore, in situ measurement remains the best method for accurately obtaining thermal conductivity for rocks.

KeywordThermal Diffusivity Specific Heat Capacity Thermal Conductivity High Temperatures Rock Laser-flash Technique
Subject Area地球深部物质与流体作用地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/5188
Collection地球内部物质高温高压实验室_地球内部物质高温高压实验室_期刊论文
Corresponding AuthorLi, HP
Recommended Citation
GB/T 7714
Miao, SQ,Li, HP,Chen, G. Temperature dependence of thermal diffusivity, specific heat capacity, and thermal conductivity for several types of rocks[J]. Journal of Thermal Analysis and Calorimetry,2014,115(2):1057-1063.
APA Miao, SQ,Li, HP,&Chen, G.(2014).Temperature dependence of thermal diffusivity, specific heat capacity, and thermal conductivity for several types of rocks.Journal of Thermal Analysis and Calorimetry,115(2),1057-1063.
MLA Miao, SQ,et al."Temperature dependence of thermal diffusivity, specific heat capacity, and thermal conductivity for several types of rocks".Journal of Thermal Analysis and Calorimetry 115.2(2014):1057-1063.
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