1. Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
2. National Institute of Metrology, Beijing 100029, China
3. Xian Polytechnic University, Xian, Shaanxi 710048, China
Abstract：Oxidation of high purity platinum wire is one of important factors that affect the temperature measurement performance of standard platinum resistance thermometer. The main reaction product of PtO2 at different temperatures and the formation and decomposition temperature of different products are researched using differential scanning calorimetry and X-ray photoelectron spectroscopy. The results show that PtO2 will decompose into Pt and PtO gradually as the temperature rise between 550 ℃ to 820 ℃. Above 820 ℃, PtO will decompose into Pt and O2 quickly. The results will provide supports for the production and use of standard platinum resistance thermometer.
牛亚路,宋凯,孙建平,李旭,叶萌. 空气环境下PtO2分解实验的研究[J]. 计量学报, 2018, 39(1): 33-38.
NIU Ya-lu,SONG Kai,SUN Jian-ping,LI Xu,YE Meng. Research on the Decomposition Experiment of PtO2 in Air Environment. Acta Metrologica Sinica, 2018, 39(1): 33-38.
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2018, Vol. 39 
