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| Ga-In-Sn微型共晶点相变特性研究 | |
| 引用本文： | 刁福广,蔡晋辉,孙建平,王颖文,高凯,叶萌.Ga-In-Sn微型共晶点相变特性研究[J].计量学报,2019,40(3):421-426. |
| 作者姓名： | 刁福广 蔡晋辉 孙建平 王颖文 高凯 叶萌 |
| 作者单位： | 中国计量大学,浙江杭州310018;中国计量科学研究院,北京100029;中国计量大学,浙江杭州,310018;中国计量科学研究院,北京,100029;内蒙古科技大学,内蒙古包头,014010;西安工程大学,陕西西安,710048 |
| 基金项目： | 国家重点研发计划(2017YFF02063,2017YFF0206303);国家自然科学基金(51576181) |
| 摘 要： | 以Ga-In-Sn三元合金为研究对象,研制了可用于现场及在线标定的微型Ga-In-Sn共晶点容器,开展了3种不同配比对相变温度和温坪复现影响的研究。结果表明:3种配比的共晶点温坪可持续1. 2～2 h,实验的复现性优于4. 5 m K,合成扩展不确定度为9. 3 m K(k=2),3种配比的共晶点相变温度平均值为10. 748℃;在相同热工况下Ga-In-Sn合金发生共晶反应的相变温度不受配比的影响;改变合金熔体的降温速率可改变微型共晶点过冷度。 |
| 关 键 词： | 计量学 ITS-90国际温标 相变特性 镓铟锡三元合金 微型共晶点 |
| 收稿时间： | 2018-03-09 |
Study on Phase Transition Characteristic of Mini Ga-In-Sn Eutectic Fixed Point |
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| DIAO Fu-guang,CAI Jin-hui,SUN Jian-ping,WANG Ying-wen,GAO Kai,YE Meng.Study on Phase Transition Characteristic of Mini Ga-In-Sn Eutectic Fixed Point[J].Acta Metrologica Sinica,2019,40(3):421-426. | |
| Authors: | DIAO Fu-guang CAI Jin-hui SUN Jian-ping WANG Ying-wen GAO Kai YE Meng |
| Affiliation: | 1. China Jiliang University, Hangzhou, Zhejiang 310018, China 2. National Institute of Metrology,Beijing 100029, China 3. Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China 4. Xi‘an Polytechnic University, Xi'an, Shaanxi 710048, China |
| Abstract: | Taking Ga-In-Sn ternary alloy as the research object, a mini Ga-In-Sn eutectic cell which can be used for on-site and on-line calibration was developed, and the effect of three-ratio for the Ga-In-Sn on phase transition temperature and temperature plateau were investigated. The results show that the plateaus of three-ratio Ga-In-Sn realization last about 1.2 h to 2 h, the reproducibility is less than 4.5 mK and combined expanded uncertainty is 9.3 mK(k=2). The average value of the phase transition temperature is 10.748 ℃ and is not affected by the ratio of Ga-In-Sn ternary alloy. Changing the melt cooling rate can change the supercooling of the mini eutectic fixed point. |
| Keywords: | metrology ITS-90 phase transition characteristic Ga-In-Sn ternary alloy mini eutectic fixed point |
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