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Microwires of nickel, cobalt and copper-based alloys characterized by high level of temperature and time stability
https://doi.org/10.22349/1994-6716-2018-95-3-82-88
Abstract
The results of investigations of temperature and time stability of cast microwires in glass insulation from resistive alloys of nickel–chrome, cobalt–chromium and copper–nickel systems are presented. It is established that microwires from the investigated alloys retain their temperature stability at temperatures not lower than 350°C. An investigation of the time stability showed that changes in the electrical resistance during long-term storage of microwires (up to 1 year) do not occur in warehouse conditions, and despite the high degree of nonequilibrium of alloys during high-temperature hardening of the melt, relaxation phenomena are not observed. Consequently, the investigated microwires from alloys based on nickel, cobalt and copper are a very promising material for manufacturing thermostable resistive elements for precision instrumentation.
About the Author
B. V. Farmakovsky
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand Sc. (Eng)
49 Shpalernaya St, 191015, St Petersburg
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Review
For citations:
Farmakovsky B.V. Microwires of nickel, cobalt and copper-based alloys characterized by high level of temperature and time stability. Voprosy Materialovedeniya. 2018;(3(95)):82-88. (In Russ.) https://doi.org/10.22349/1994-6716-2018-95-3-82-88
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