Improving the Quality of Thermocouple Wire Made of Platinum-rhodium Alloys

摘要：

For the manufacture of S-type thermocouple the so-called thermocouple wire of platinum and platinum-rhodium alloy is used. One of the main technical requirements for the quality of the wire, according to State Standard of Russia (GOST 10821), is the uniformity of its largest thermoelectric force (Thermo-emf) in the length different sections. It was found that a determining impact on the uniformity of the wire thermo-emf is the distribution of rhodium along the length of the wire. The impact of platinum- rhodium melt crystallization conditions on the inhomogeneity of wire manufactured from it. It was suggested that the chemical inhomogeneity of the wire is related to the liquation phase of platinum-rhodium alloy.

关键词： thermocouple thermocouple wire platinum-rhodium alloy inhomogeneity crystallization liquation phase

作者: HORIKOV P. A MAMONOV S. N EFIMOV V. N RADKIN A. N DROZDOV D. E

作者单位: JSC Krastsvetmet, Krasnoyarsk, Russia

会议类型: 国际会议

会议名称: 5th International Conference Platinium Metals(第五届国际贵金属会议)

会议地点: 昆明

会议语种:英文

页码: 102-103

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）