99.95% Hafnium Sheet
99.95% high-purity hafnium plate is a plate-shaped material made from hafnium metal with a purity of ≥ 99.95%, which is precision rolled and surface treated. Its ultimate purity significantly enhances the inherent properties of hafnium, making it a key foundational material in fields such as nuclear energy, semiconductors, and high-end scientific research.
Description
A high purity of 99.95% means that the hafnium content in the niobium plate is not less than 99.95%, and key impurities such as zirconium (Zr), iron (Fe), oxygen (O), etc. are strictly controlled at the level of tens of parts per million (ppm). This extremely high purity fundamentally eliminates the interference of impurities on material properties, ensuring the high stability and predictability of the performance of the niobium plate in strong radiation, strong corrosion, or high vacuum environments, avoiding unexpected electrochemical corrosion, grain boundary embrittlement, or performance degradation caused by impurities.
Hafnium has the largest thermal neutron absorption cross section among all stable metal elements (approximately 104 bar), which means it can capture thermal neutrons extremely efficiently. This characteristic, combined with its excellent resistance to radiation damage (able to withstand neutron doses above 10 Ω¹ n/cm ² without significant swelling or embrittlement), makes it the only ideal material for manufacturing core components of nuclear reactor control rods, used for precise control of chain reaction rates, and is a key guarantee for nuclear safety.
High purity hafnium plates exhibit excellent corrosion resistance to inorganic acids (such as concentrated nitric acid, hydrochloric acid, sulfuric acid), high-temperature and high-pressure water, water vapor, and liquid metals (such as sodium, lead bismuth), with an annual corrosion rate of less than 0.01 millimeters. Its surface can form a dense, stable, and self-healing hafnium oxide (HfO ₂) passivation film, which is the fundamental reason for its resistance to extreme corrosive environments.
The melting point of hafnium is as high as about 2233 ° C, and high-purity hafnium plates can still maintain good strength, hardness, and creep resistance at high temperatures. At the same time, its thermal neutron absorption cross-section does not significantly decrease with increasing temperature, which is its unique advantage over other neutron absorbing materials such as cadmium and boron, ensuring its reliability at reactor operating temperatures.
99.95% high-purity hafnium plate, with its ultimate purity and special performance, has become an indispensable strategic material in multiple cutting-edge technology fields:
1, Core materials of nuclear energy industry
As the absolute core of nuclear reactor control rods, high-purity neodymium plates are made into neutron absorption plates, and their ultra-high thermal neutron absorption cross section of 104 bar is used to precisely regulate the chain reaction rate. Its unique advantages of corrosion resistance and radiation swelling resistance in high-temperature and high-pressure water environments ensure the safe operation of nuclear power plants, nuclear powered ships, and research reactors for decades. It is a critical component that cannot be replaced by any existing material.
2, Precision consumables for semiconductor manufacturing
In chip manufacturing, this material is used for electrode plates in plasma etching machines and inner lining plates in chemical vapor deposition (CVD) reaction chambers. Its extremely high purity avoids metal contamination, while its resistance to halogen gas (Cl ₂, F ₂) corrosion ensures process stability, which directly affects the yield of advanced processes below 7 nanometers.
3, Key components of cutting-edge scientific research equipment
In the beam channel of particle accelerators, the optical element base of synchrotron radiation sources, and the first wall shield of tokamak fusion devices, high-purity cathode plates provide a reliable environment for extreme physics experiments due to their high vacuum stability, radiation resistance, and extremely low gas release rate.
4, High end chemical and medical equipment
Used for manufacturing the lining of ultra pure chemical synthesis reactors to prevent catalyst poisoning; As a packaging material for implantable medical devices such as nerve stimulators, it utilizes its biocompatibility and resistance to body fluid corrosion to ensure long-term stable operation of the equipment.
Shaanxi Zhongheng Weichuang Metal Materials Co., Ltd., as a leading hafnium material manufacturer and global exporter in China, has always been committed to providing customers with high-quality and high-purity hafnium products. We insist on integrated operation from production to sales, without any intermediate links, to ensure that you can obtain reliable products directly supplied from the source at the most competitive price.
The company strictly controls every production process, and all hafnium materials meet international standards with solid and guaranteed quality. We have a professional customer service team that is always online to respond to your needs, providing worry free services throughout the entire process from technical consultation to after-sales support, ensuring smooth cooperation and peace of mind in procurement.
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Shaanxi Zhongheng Weichuang Metal Materials Co., Ltd. is willing to create value with global customers through excellent products and sincere services, and work together for win-win results!
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