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| THE OXIDE LAYERS FORMED ON TYPE N THERMOCOUPLE ALLOY IN AIR AT 1300℃ |
| Li Wei and Zhang Ping(Chongqing Research Institute of Instrument Materials) |
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Abstract The scale morphology, constitution phases and elements distribution were examined by EPMA et on type N(Ni-14Cr-1.4Si/Ni-4.4Si)and K(Ni-10Cr-1 Co/Ni-2.5Si)thermocouple alloys after test in air at 1300℃ 483h. In comparing the results, it is obvious that type N alloy has higher oxidation resistance.
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Received: 25 April 1989
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[1] 陈日新,IEC(推荐)标准N型热电偶偶丝的研制,重庆仪表材料研究所资料(1987)
[2] Burley, Noel. A., The Nicrosil/Nisil thermocouple, NBS 161, P. 15
[3] Burley,Noel.A.,邓大任译,见:温度测量与控制(下),P.301 |
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