
Hafnium Crucible
Hafnium crucible is a high-temperature resistant container made of hafnium or hafnium alloy, mainly used for high-temperature melting and chemical reactions. Hafnium crucibles have high melting points, corrosion resistance, and oxidation resistance, making them suitable for metal melting and other chemical reactions in high-temperature environments.
Description
Shaanxi Zhongheng Weichuang Metal Materials Co., Ltd. is located in the High tech Development Zone of Baoji City, Shaanxi Province. Our main products include plates, rods, tubes, wires, particles, foils and other conventional processed profiles of tantalum, niobium, titanium, nickel, zirconium, hafnium and their alloys, as well as deep processed products such as crucibles, grounding rings, protective tubes, target materials, screws, etc. Integrated factory and trade, customizable, standard products available, 24-hour after-sales service.
Customizable according to specifications, weldable and integrated

Key requirements for raw material selection
Material purity
High purity hafnium material (usually ≥ 99.95%) should be used to ensure extremely low impurity content and avoid impurity reactions at high temperatures that may cause crucible corrosion or contamination of the molten material.
High temperature resistance and corrosion resistance
Hafnium has a melting point of approximately 2230 ° C and possesses excellent high-temperature strength and resistance to acid and alkali corrosion, making it suitable for melting active metals (such as titanium and zirconium) and high-temperature oxides.
Performance and Application Key Points
High temperature stability: The working temperature can reach 2200 ° C, suitable for ultra-high temperature fields such as sapphire crystal growth and nuclear fuel processing.
Corrosion resistance advantage: It has resistance to molten alkali metals and some acidic molten salts, but needs to avoid strong oxidizing environments (such as nitric acid).
Quality control standards: Referring to GB/T or ASTM hafnium material specifications (such as ASTM B737), the testing focuses on purity, grain size, and high-temperature creep performance.

The main use of hafnium crucible
1 ,In the field of nuclear energy:
Used for nuclear fuel reprocessing, melting radioactive materials such as uranium and plutonium, relying on their radiation resistance and neutron absorption ability.
2 ,Manufacturing of aerospace high-temperature components:
Melting titanium/nickel based high-temperature alloys and hafnium carbide composite materials, applied to extreme environmental components such as rocket engine nozzles and heat-resistant coatings.
3 ,High end material synthesis:
Growing sapphire single crystals, semiconductor compounds (such as gallium nitride), and melting high-purity precious metals (gold, platinum).
4 ,Preparation of Hard Alloy Additives:
Hafnium carbide crucible can melt hard materials such as TaC and ZrC, and is used as a reinforcing agent for cutting tools and molds.
Hafnium crucibles have demonstrated irreplaceable value in fields such as nuclear energy, aerospace, and high-end material preparation due to their ultra-high temperature resistance, excellent corrosion resistance, and high purity characteristics. Despite its high cost, its stable performance in extreme environments makes it a key tool for high-temperature melting technology. In the future, with the advancement of materials science, the application potential of hafnium crucibles will be further released, providing reliable support for more cutting-edge technological fields.
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