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What is Hafnium Diicide HfSi2? Hafnium desilicide The molecular formula Hafnium silicide has a molecular mass of 234.66. It is gray powder.
Hafnium silicide, a type a transition metal silicide as well as a class of refractory intermediatemetallic compounds. A unique combination of chemical and physical properties makes hafnium silicide a highly effective choice in fields such as bulk structural components and semiconductor components, thin films coatings, photovoltaic materials, and thermoelectric materials.
Hafnium-disilicide nanomaterials exhibit special electrical and optical properties. They could also be useful in catalysis.

What is Hafnium Diilicide HfSi2 Used for?
1. To prepare silicon carbide-hafnium silicide-tantalum silicide (SiC-HfSi2-TaSi2) anti-ablation composite coating
Carbon fiber reinforced carbon (Chand C), composite is a novel type of high-temperature composite that uses carbon fiber reinforcement and pyrolyticcarbon as a matrix. The composite’s excellent properties at high temperatures, ablation resistance, good friction and wear resistance led to research by the United States on Chammer C composites for thermal structures. This work resulted in the creation of Cmax C Composites from thermal-structure materials to cauterized heat-proof materials. C/C can be used as a thermal structure material in components for gas turbine engines, spacecraft nose cone cap, wing lead edge, and many other places. Many of these parts are designed to work in extreme temperatures and oxidation conditions.

CPAC composites, however, are very easy to oxidize. They will usually not function normally in an oxygen atmosphere higher than 400. Chammer C composites need to be properly protected from oxidation. The preparation of an anti-oxidation coat is one of the most important protective measures. The results indicate that C/C composites can have an even higher ablation rate if they are coated with refractory materials Zr, Hf and Ta as well as TiB2 and other reactive metals. To understand the influence of Hf,Ta on Chand-C composites’ ablation performance, SiC–HfSi2-TaSi2 antiablation coated was prepared by embedding. Oxyacetylene ablation devices were used to measure the coating’s ablation performance. Knot.

2. To create organic light-emitting gadgets
The package cover covers the light emitting layers and the cathode on anode. A silicon carbonitride-based layer is used as a barrier to protect the silicon carbonitride. The barrier layer contains silicide as well as metal oxides. At least one is chromium, tantalum, hafnium, titanium, molybdenum, and tungsten silicide. The metal dioxide can be chosen from magnesium oxide and aluminum trioxide, zirconium dioxide, hafnium dioxide, tantalum pentoxide, hafnium dioxide, tantalum pentoxide or titanium dioxide. The organic light-emitting device mentioned above has a longer life span.

3. To prepare silicon-germanium-alloy-based thermoelectric components
The silicon-germanium alloy-based, silicon-germanium thermoelectric element is made up of an electrode, a silicon germanium mixture-based thermal layer and a barrier layer. This layer acts as a buffer between the silicon germanium layer and the silicon germanium layer. The barrier layer is made up of silicide as well as silicon nitride. The silicide is at minimum one of silicides: molybdenum silicide (tungsten silicide), cobalt silicide; nickel silicide; zirconium silicide; tantalum silicide or hafnium silicide. The interface of silicon-germanium alloy based thermoelectric element has a well-bonded structure. It is resistant to cracks and diffusion phenomena, can withstand high temperature accelerated testing for a long time, and is thermally stable.

4. To prepare the cermet coating with high temperature resistance, oxidation resistance, and other properties.
The composite film has a thickness of 10mm x 50mm. The refractory metallic is one or many of molybdenum or tantalum as well as zirconium, zirconium or hafnium. The refractory compound is composed of silicon carbide and one to more of tantalum carbide, zirconium carbide and hafnium carbide. The intermetallic compound is composed of one or more molybdenum silicides and silicides such as tantalum silicide or zirconium silicide or zirconium silicide or silicidesilicide or silicide or zirconium silicide or silicide or silicide or alum carbosilicide or zirconium silicide or zirconium silicide or hafnium carbosilicide or zirconium silicide or hafnium carbosilicidesilicide or molybdenum refractory of molybdenum refractory of molybdenum refractory of tantalum silicidesilicide and refractory of refractory of refractory of refractory of refractory of refractory of refractory and refractory of refractory of refractory of refracium carbosilicide. The crystal structure of the coating is made of amorphous, / or polycrystalline microparticles.

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