Molybdenum crucible plays a key role in the metal evaporation process. Its excellent high temperature resistance, chemical stability and mechanical properties make it a core tool in the metal evaporation process. The following is a specific analysis:
- Material properties of molybdenum crucible
High temperature resistance
molybdenum is as high as 2610℃, and it can work stably in a high temperature environment above 2000℃, meeting the high temperature environment requirements of the metal evaporation process.
Chemical stability
Molybdenum crucibles are not easy to react chemically with metals at high temperatures, which can effectively avoid impurity contamination and ensure the purity of the evaporated metal.
Mechanical properties
Molybdenum crucible has high strength and creep resistance, and the thin-wall design can withstand thermal stress at high temperatures and extend its service life.
- Application of molybdenum crucible in metal evaporation process
Evaporation source
The molybdenum crucible is used as an evaporation source. The metal is melted and evaporated through resistance heating or electron beam bombardment to form vapor atoms or molecules, which are deposited on the surface of the substrate to form a thin film.
Thin film preparation
In vacuum coating and evaporation coating processes, molybdenum crucibles are used to evaporate metals (such as aluminum, copper, gold, etc.) and compounds to prepare high-purity, uniform thin films, which are widely used in electronics, optics, aviation and other fields.
High temperature alloy preparation
When preparing high-temperature alloys, molybdenum crucibles can withstand high-temperature melting environments, ensure uniform alloy composition, and improve material properties.
- Process advantages of molybdenum crucible
High purity evaporation
the molybdenum crucible prevents contamination during metal evaporation, ensuring the purity and performance of the film.
Efficient evaporation
molybdenum crucibles can achieve fast and uniform metal evaporation and improve production efficiency.
Long life
molybdenum crucible make it have a long service life in high temperature environment and reduce production costs.
- Application Cases
Electronics Industry
In semiconductor manufacturing, molybdenum crucibles are used to evaporate high-purity metals and prepare conductive films and reflective layers.
Optical coating
In the manufacture of optical lenses and filters, molybdenum crucibles are used to evaporate multi-layer dielectric films to improve optical performance.
Aerospace
In the thermal protection systems of aircraft engines and spacecraft, molybdenum crucibles are used to prepare high-temperature resistant ceramic coatings and metal-based composite materials.
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