Hafnium Oxide pellets are solid particles with a certain shape (usually in the form of pellets) made from hafnium oxide powder through certain moulding processes (e.g. pressing, sintering, etc.), which retains the properties of hafnium oxide such as high melting point, chemical stability, etc., and has potential applications in the fields of high-temperature materials, electronic components and so on.
VIMATERIAL offers high-purity hafnium oxide pellets in various sizes and specifications. We also provide hafnium oxide powder and hafnium oxide targets. Contact us for more information.
Chemical formula: HfO₂
Molar mass: 210.49 g/mol
Appearance: White or dark gray.
Density: 9.68 g/cm³
Melting Point: 2810°C
Band Gap: 5.3~5.7 eV.
Magnetic properties: -23.0 x 10-⁶ cm³/mol, with weak antimagnetic properties.
High chemical stability: It does not react with water at room temperature, is a refractory substance, and remains stable in many chemical environments, which makes it reliable in a variety of complex application scenarios.
Optical properties: high refractive index, can provide good optical properties in optical coatings, such as for anti-reflection coatings and mirrors.
Thermal Stability: Structural and performance stability is maintained at high temperatures and can be used in environments with temperatures up to 2000°C or more.
Neutron Absorption Properties: Effectively absorbs neutrons, which allows it to be used as a control rod or as a structural material in nuclear reactors, helping to control nuclear reactions and improve reactor safety.
Semiconductor field
Optical field
High-temperature materials
Nuclear reactor field
Chemical field
Catalyst/carrier: Improves reaction efficiency, activity, and selectivity in chemical processes.
Ceramics and glass field
Performance improvement: Increases strength, toughness, and heat resistance, making materials more durable for demanding uses.
Packaging:
Hafnium oxide tablets are typically packaged in vacuum-sealed plastic bags or aluminum foil bags with desiccants to prevent moisture and contamination. A sturdy plastic drum or cardboard box provides secondary protection against damage or mechanical compression during transport. The packaging is clearly labeled with the product name, specifications, and precautions.
Storage:
Hafnium oxide tablets should be stored in a dry, cool, and well-ventilated environment, away from moisture, acids, alkalis, and other corrosive substances, and protected from high temperatures and drastic temperature changes. During storage, the packaging should be kept intact to prevent moisture absorption or contamination. It is recommended to store them in a clean area or dedicated warehouse to ensure performance stability and effectiveness.
Q1: What is hafnium oxide used for?
A: Hafnium oxide (HfO₂) is an important inorganic compound. Due to its high thermal neutron absorption cross-section, it is a key material for nuclear reactor control rods and also has wide applications in semiconductors, optics, and advanced memory technologies.
Nuclear Energy and High Temperature Engineering: Nuclear reactor control rods and protective materials, high-temperature refractory and coating materials, hafnium metal preparation and precursors.
Semiconductor and Microelectronics: Transistor gate dielectric layers, memory applications, other electronic components.
Optics and Multifunctional Materials: Optical coatings and laser materials, ceramics and catalysts, special functional materials.
Q2: Is HfO2 a semiconductor?
A: Hafnium oxide (HfO₂) is not a semiconductor itself, but a typical high-k dielectric insulating material. Although strictly speaking, hafnium oxide is an insulator rather than a semiconductor due to its extremely poor conductivity, which hinders electron movement, this does not prevent it from playing a crucial role in semiconductor devices. Particularly in metal-oxide-semiconductor field-effect transistors (MOSFETs), hafnium oxide is often used as an insulating layer material to effectively prevent the flow of electrons and holes.
Q3: Can hafnium oxide pellets be customized?
A: Yes, hafnium oxide pellets can be fully customized to meet specific application requirements. We provide tailored solutions in terms of purity, pellet size, density, and surface finish to suit various usage scenarios such as evaporation, sputtering, or high-temperature applications. Whether you need standard round pellets or special shapes and dimensions, we can manufacture according to your technical drawings and specifications. This ensures consistent quality, optimal performance, and compatibility with your specific processes and equipment.
A4: What is the lead time for hafnium oxide pellets?
A: In Stock: Immediate shipping
Standard Products: Generally 2-4 Weeks
Customized Products: Determined based on required details
Special requirements can be discussed
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
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