Description

Technical Parameters

Evaporation Crucible Niobium Nb Value Priced Factory Customized

Diameter(mm)	Thickness(mm)	Height(mm)	Surface finish	inner surface finish	inner bottom finish
30-50	2-10	≤200	≤Ra2.0	≤Ra2.4	≤Ra2.8
50-100	3-15	≤300	≤Ra2.0	≤Ra2.4	≤Ra2.8
100-150	3-15	≤350	≤Ra2.0	≤Ra2.4	≤Ra2.8
150-200	5-20	≤400	≤Ra2.0	≤Ra2.4	≤Ra2.8
200-300	8-25	≤500	≤Ra2.0	≤Ra2.4	≤Ra2.8
300-400	8-30	≤600	≤Ra2.0	≤Ra2.4	≤Ra2.8
400-450	8-30	≤650	≤Ra2.0	≤Ra2.4	≤Ra2.8
450-600	8-35	≤800	≤Ra2.0	≤Ra2.4	≤Ra2.8

What are the advantages of using a niobium crucible in a vacuum environment?

A niobium crucible in a vacuum environment offers several distinct advantages, making it highly suitable for specialized scientific and industrial applications.

Minimal Outgassing: One of the primary benefits is its low outgassing characteristics. In a vacuum, any material can release trapped gases, which can contaminate the environment and affect experimental results. Niobium has an extremely low vapor pressure, meaning it releases negligible amounts of gases even at high temperatures. This ensures a clean vacuum environment, which is crucial for processes like thin - film deposition, electron microscopy, and surface science studies.

High - Temperature Stability: Niobium can withstand very high temperatures without losing its structural integrity. In a vacuum, where heat dissipation occurs primarily through radiation, the ability of the crucible to handle high temperatures is essential. It can be used for processes such as melting and evaporating metals at elevated temperatures, which are common in materials science research and the production of high - purity materials.

Chemical Inertness: The crucible remains chemically inert in a vacuum. It does not react with the residual gases present in the vacuum chamber or with the materials being processed. This is vital for maintaining the purity of the materials being handled, especially in applications like the synthesis of high - purity metals, alloys, and semiconductors.

Thermal Shock Resistance: Niobium has good thermal shock resistance. In a vacuum environment, rapid temperature changes can occur during the start - up and shut - down of heating elements. The crucible can withstand these sudden temperature variations without cracking or degrading, ensuring its long - term usability.

Compatibility with Vacuum Equipment: Niobium crucibles are compatible with a wide range of vacuum equipment. They can be easily integrated into vacuum furnaces, electron beam melting systems, and other vacuum - based processing units, making them a versatile choice for various research and industrial applications.

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Niobium Crucible in Vacuum

Evaporation Crucible Niobium Nb Value Priced Factory Customized

What are the advantages of using a niobium crucible in a vacuum environment?