Preparation of W-Ta thin-film thermocouple on diamond anvil cell for in-situ temperature measurement under high pressure |
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Authors: | Yang Jie Li Ming Zhang Honglin Gao Chunxiao |
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Affiliation: | State Key Laboratory for Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China. |
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Abstract: | In this paper, a W-Ta thin-film thermocouple has been integrated on a diamond anvil cell by thin-film deposition and photolithography methods. The thermocouple was calibrated and its thermal electromotive force was studied under high pressure. The results indicate that the thermal electromotive force of the thermocouple exhibits a linear relationship with temperature and is not associated with pressure. The resistivity measurement of ZnS powders under high pressure at different temperatures shows that the phase transition pressure decreases as the temperature increases. |
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