About Hafnium Oxide:
Hafnium oxide is a compound with specific physical and chemical properties, which has a wide range of uses.
1. Basic properties of hafnium oxide
Hafnium oxide (HfO2) is a white inorganic compound, usually in solid form at room temperature. Its molecular formula is HfO2, with a molecular weight of 138.01. This compound has high melting point, high hardness, good chemical stability, and electrical properties, making it of great significance in many high-tech applications.
2. Physical properties of hafnium oxide
Appearance: Hafnium oxide is a white solid that is stable at room temperature.
Melting point: Hafnium oxide has a high melting point of 2440 ° C.
Hardness: Hafnium oxide has a high hardness, second only to diamond.
Thermal conductivity: Hafnium oxide has good thermal conductivity and can maintain stable physical properties at high temperatures.
3. Chemical properties of hafnium oxide
Stability: Hafnium oxide has high chemical stability and can maintain stability in high temperatures and strong acidic and alkaline environments.
Reactivity: Hafnium oxide does not react with other metal oxides, but can react with elements such as carbon, silicon, and boron at high temperatures to generate corresponding metal hafnium.
4. Preparation method of hafnium oxide
Hafnium oxide can be prepared through various methods, such as sulfur dioxide reduction, chlorination, and thermal decomposition. Among them, the sulfur dioxide reduction method is one of the most commonly used methods, and the specific steps are as follows:
Mix metal hafnium, sulfur dioxide gas, and oxygen in a certain proportion;
React under specific temperature and pressure conditions;
Separate the hafnium oxide generated by the reaction from the reaction mixture using a centrifuge;
Perform high-temperature calcination and hydrogen reduction treatment to obtain pure hafnium oxide.
Application of hafnium oxide:
Due to its high melting point, high hardness, chemical stability, and excellent electrical properties, hafnium oxide is widely used in the following fields:
High temperature coating: Due to the high melting point and chemical stability of hafnium oxide, it is used as one of the high-temperature coating materials and can be used to protect high-temperature components from oxidation and corrosion.
Electronic packaging: Due to its excellent electrical properties and stable physical and chemical properties, hafnium oxide is used as one of the electronic packaging materials and can be used to protect electronic components from external environmental influences.
Optical coating: Due to the high transparency and refractive index of hafnium oxide, it is used as one of the optical coating materials and can be used to manufacture high-precision optical components and lenses.
Catalyst: Due to its high activity and stability, hafnium oxide is used as one of the catalyst materials and can be used to produce high value-added products, such as the synthesis of aromatic compounds, olefins, and polymers.
High performance ceramics: Due to its high hardness and excellent mechanical properties, hafnium oxide is used as one of the high-performance ceramic materials and can be used to manufacture high-precision and high hardness parts and tools.
Aerospace field: Due to its high melting point and stable physical and chemical properties, hafnium oxide is used as one of the high-temperature materials in the aerospace field, and can be used to manufacture key components such as high-temperature components and rocket nozzles.
Storage Condition of Zirconium Oxide ZrO2 powder :
Zirconium Oxide ZrO2 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.
Packing & Shipping of hafnium oxide :
It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection..
hafnium oxide packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
hafnium oxide shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.
Purity: 2N, 3N, 3N5, 4N