As is known to all, tungsten (W) is one of the pure metals with the highest melting point in the world, and its melting point is 3156.85 k (3430 ℃). Now, the most difficult melting material in the world is a kind of mixture material containing hafnium carbide and nitride powder, and its melting point at 4400 k (4126.85 ℃). The material was synthesized a few days ago in extreme conditions by researchers at Russia's Far Eastern Federal University and the Russian Academy of Sciences, and the high-temperature functional material will be mainly used in the cutting-edge fields such as defense and military industry, aerospace, electronic information, energy, chemical control, metallurgy and nuclear industry. The next step of the research is to optimize the synthesis of the material and further study the solid phase transition process, according to a statement released by Russia's Far Eastern Federal University.
The powder mixture was obtained by pulsed flame sintering by a team of researchers from the institute of atomic energy, school of natural science, Russian Far Eastern Federation University, and the Institute of Chemistry, Russian Academy of Sciences, which was founded in 2016 and specialized in new materials research applied in the fields of military industry, aerospace, biomedicine, nuclear waste safety treatment, and ecological environment monitoring.
As you can see here, the hardest material to melt in the world is still in the research stage, and there is still a long way to go before their practical application or even popularization. Let's take a look at some of the metals difficult to melt in our lives, such as tungsten (W).
Tungsten is widely used in aerospace, science and technology, military industry, electronics, mining, metallurgy, machinery, construction, transportation, chemical, light industry and textile industries. This includes pure tungsten metal, tungsten alloy, tungsten sheet, tungsten compounds (tungsten oxide, sodium tungstate, tungstic acid, and tungsten disulfide), etc., covering tungsten products and intermediate products of tungsten. Generally speaking, tungsten can be used in the manufacture of firearms, drills, drawing dies, counterweights, armor piercing projectiles, turbine impeller, radiation shield, electrical vacuum lighting materials, cutting metal blades, contact materials for switches, aircraft engine valves, rocket thrusters, and so on.
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