Volume 66 Issue 7
Aug.  2022
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ZHANG Tingting, LU Xiaofeng, DONG Liang, WANG Hao. Study on the Method of Determining the Temperature Value of the Al-Cu Fixed Point Blackbody[J]. Metrology Science and Technology, 2022, 66(7): 28-32, 69. doi: 10.12338/j.issn.2096-9015.2021.0581
Citation: ZHANG Tingting, LU Xiaofeng, DONG Liang, WANG Hao. Study on the Method of Determining the Temperature Value of the Al-Cu Fixed Point Blackbody[J]. Metrology Science and Technology, 2022, 66(7): 28-32, 69. doi: 10.12338/j.issn.2096-9015.2021.0581

Study on the Method of Determining the Temperature Value of the Al-Cu Fixed Point Blackbody

doi: 10.12338/j.issn.2096-9015.2021.0581
  • Accepted Date: 2022-03-23
  • Available Online: 2022-04-04
  • Publish Date: 2022-08-04
  • Aiming at the excessive temperature interval between the zinc fixed point (419.53℃) and the aluminum fixed point (660.32℃) in the International Temperature Scale of 1990 (ITS-90), an Al-Cu fixed point (Cu 33wt%, 548.16℃) was developed as an auxiliary fixed point. Self-developed radiation thermometer RT9032 was used to test the melting and solidification temperature values of Al-Cu fixed points. For the determination of the Al-Cu fixed point temperature value, the average value of the melting plateau, the point of inflection (POI), and the upper limit (UL) temperature point were adopted. The research results showed that different determination methods do not produce significant differences for the melting temperature, with a maximum difference of 34 mK, and the repeatability of the Al-Cu fixed point is within 18 mK. Therefore, the Al-Cu fixed point (melting point) can be used as an auxiliary fixed point in addition to the ITS-90 fixed point.
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  • [1]
    PRESTON-THOMAS H. The International Temperature Scale of 1990[J]. Metrologia, 1990, 27: 3-10. doi: 10.1088/0026-1394/27/1/002
    [2]
    BOGUHN D, AUGUSTIN S, BERNHARD F, et al. Application of Binary Alloys in Miniature Fixed-Point Cells as Secondary Fixed Points in the Temperature Range from 500 °C to 660 °C[J]. American Institute of Physics, 2003, 684: 249-254.
    [3]
    ANCSIN J. Al-Cu eutectic: An experimental study of its melting properties[J]. Metrologia, 2007, 44: 87-90. doi: 10.1088/0026-1394/44/1/013
    [4]
    ANCSIN J. Manipulating the Melting behavior of Metal-Metal Eutectics[J]. International Journal of Thermophysics, 2008, 29: 181-189. doi: 10.1007/s10765-007-0307-7
    [5]
    AUGUSTIN S, BERNHARD F, BOGUHN D, et al. Industrially applicable fixed-point thermocouples [J]. TEMPMEKO, 2001, 2003: 3-8.
    [6]
    WOOLLIAMS E R, ANHALT K, BALLICO M, et al. Thermodynamic temperature assignment to the point of inflection of the melting curve of high-temperature fixed points[J]. Philosophical Tansactions of The Royal Society A, 2016, 374(2064): 20150044.
    [7]
    SUN J P, LU X F, YE M, et al. Stability Evaluation and Calibration of Type C Thermocouples at the Pt-C Eutectic Fixed Point[J]. International Journal of Thermophysics, 2017, 38(12): 174. doi: 10.1007/s10765-017-2315-6
    [8]
    SUN J P, PAN J, LU X F, et al. Miniature fixed point cells for self-calibration of type C high temperature thermocouples[J]. Measurement Science and Technology, 2019, 31(1): 014004.
    [9]
    刁福广, 蔡晋辉, 孙建平, 等. Ga-In-Sn微型共晶点相变特性研究[J]. 计量学报, 2019, 40(3): 421-426. doi: 10.3969/j.issn.1000-1158.2019.03.12
    [10]
    金森林, 李硕, 姚雅萱, 等. 薄膜材料相变温度测量方法介绍[J]. 计量科学与技术, 2021(1): 8-13,3.
    [11]
    LEE S J, NAKAMURA H, KAWAHITO Y, et al. Effect of welding speed on microstructural and mechanical properties of laser lap weld joints in dissimilar Al and Cu sheets[J]. Science and Technology of Welding and Joining, 2014, 19(2): 111-118. doi: 10.1179/1362171813Y.0000000168
    [12]
    XIA C, LI Y, PUCHKOV U A, et al. Microstructure and phase constitution near the interface of Cu/Al vacuum brazing using Al-Si filler metal[J]. Vacuum, 2008, 82(8): 799-804. doi: 10.1016/j.vacuum.2007.11.007
    [13]
    刘晓英, 刘巨芬, 王景辉, 等. 0.9μm光电高温计应用单固定点延伸和多固定点内插的分度方法比较[J]. 计量学报, 2021, 42(8): 1000-1005. doi: 10.3969/j.issn.1000-1158.2021.08.04
    [14]
    ANCSIN J. Non-uniqueness of ITS-90 at 548.2 °C and at 156.6 °C[J]. Metrologia, 2006, 43(5): 461-469. doi: 10.1088/0026-1394/43/5/018
    [15]
    LOWE D, HEUFELDER S. Effect of solid liquid interface velocity on the measured upper and lower limits of the liquidus temperature of cobalt-carbon eutectic fixed points[J]. Metrologia, 2013, 50(3): 227-234. doi: 10.1088/0026-1394/50/3/227
    [16]
    BLOEMBERGEN P, YAMADA Y, SASAJIMA N, et al. The effect of the eutectic structure and the residual effect of impurities on the uncertainty in the eutectic temperatures of Fe–C and Co–C[J]. Metrologia, 2007, 44(5): 279. doi: 10.1088/0026-1394/44/5/004
    [17]
    卢小丰, 张婷婷, 董伟, 等. Pd-C和Ru-C固定点的热力学和ITS-90温度测量[J]. 计量科学与技术, 2021, 65(5): 50-54. doi: 10.12338/j.issn.2096-9015.2020.9034
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