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Measurement and Analysis of Cu2S Thermal Diffusivity during Phase Transition
Chen Hong-Yi; Shi Xun; Chen Li-Dong; Qiu Peng-Fei
2019-09-23
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:10Pages:1041
SubtypeArticle
AbstractThermal diffusivity can be measured by the laser flash method. Previous study showed that Cu2S has extremely low thermal diffusivity during the first-order phase transition. However, when laser is applied on the measured sample, both the absorption/emission of light and the increase of temperature on the measured sample will occur. Their effects on the measurement accuracy of the thermal diffusivity during the phase transition have not been investigated yet. In this study, it is found that the absorption/emission of light has neglectable influence on the thermal diffusivity measurement of Cu2S. However, the increase of temperature can significantly influence the measurement results and shift the temperature when the thermal diffusivity of Cu2S starts to decrease below the starting temperature of the phase transition determined by DSC. This can be solved by building a Cu2S/graphite double-layer structure via using the graphite to absorb part of the laser's energy. Furthermore, a thermal transport model is developed to extract the real thermal diffusivity from the measured thermal diffusivity of the Cu2S/graphite double-layer structure. This work is meaningful for accurate characterization and understanding of the thermal diffusivity of phase transition materials, photosensitive materials, and heat sensitive materials.
Keywordthermal diffusivity Cu2S phase transition
DOI10.15541/jim20190029
Language中文
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26820
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Chen Hong-Yi,Shi Xun,Chen Li-Dong,et al. Measurement and Analysis of Cu2S Thermal Diffusivity during Phase Transition[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(10):1041.
APA Chen Hong-Yi,Shi Xun,Chen Li-Dong,&Qiu Peng-Fei.(2019).Measurement and Analysis of Cu2S Thermal Diffusivity during Phase Transition.JOURNAL OF INORGANIC MATERIALS,34(10),1041.
MLA Chen Hong-Yi,et al."Measurement and Analysis of Cu2S Thermal Diffusivity during Phase Transition".JOURNAL OF INORGANIC MATERIALS 34.10(2019):1041.
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