Molybdenum in the Modern Electronics Industry
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- Category: Molybdenum knowledge
- Published on 22 September 2013
- Written by 陈桂兰
- Hits: 629
In the modern electronics industry, in addition to the use of pure molybdenum addition, Mo-Re alloy tubes can be used for structural materials and specialty bulbs, Mo-50Re and TZM alloy can also be used for high power microwave and millimeter-wave tube thermionic cathode tube in structural elements, The operating temperature can reach 1200 ℃, current density up to 10 amps / cm 2. As the Lead of the pure molybdenum wire recrystallization temperature is low, the high temperature embrittlement prone, affecting life in recent years, it was developed to add Si, k and C and other elements to enhance the recrystallization temperature, to produce "high-temperature molybdenum wire. " Molybdenum production process to take in the rare earth element yttrium, cerium, lanthanum, etc., more effectively improve the recrystallization temperature, to overcome the material at high temperature embrittlement problems. Containing 0.1-0.3% zirconium, 0.1% molybdenum wire scandium, nitrogen treatment at 1200 ℃ to Sc dispersed throughout the alloy to that of molybdenum wire tensile strength at 20 ℃ up to 1,400 megapascals.
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