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| Development and Evaluation of Re-C Eutectic High Temperature Fixed Point |
| DONG Wei1,2,XIAO Chang-zhi3,WANG Tie-jun2,DUAN Yuan-yuan1 |
1.Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University,Beijing 100084, China
2.National Institute of Metrology, Beijing 100013, China
3.College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology, Beijing 100124, China |
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Abstract A Re-C cell of hybrid structure was constructed by direct eutectic filling methods,and realized with the HTFP experimental system.The Re-C cell was evaluated according to CCT-WG5-WP2,which mainly focus on construction of HTFP cells for definitive thermodynamic temperature measurements,and the results shows that the short term repeatability of the melting temperature was 3 mK,and the difference between the start and end of melting temperature was 198mK,which were both better than the CCT reference values.
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2011, Vol. 32 
