7. Industrial applications
The industrial applications of molybdenum and its alloys take advantage of one or more of its physical, chemical and mechanical characteristics; the sectors of use are very diversified
7.1 Electricity and electronics
In the manufacture of halogen lamps and electronic tubes, molybdenum is used to produce vacuum-tight seals with quartz and borosilicate glass. Sealing takes place at around 2,100°C; molybdenum has the advantage of being stable at high temperatures in the presence of quartz, resisting the pressure exerted during the operation and, as coefficients of expansion are compatible, thermal stresses are negligible.
Tungsten filaments are wound onto molybdenum...
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Price
The price of molybdenum powder in 1992 was in the region of $15 to $20; manufacturing difficulties and the cost of milling considerably increase the price of rolled semi-finished products as the diameter or thickness decreases (figure
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