Is there a harder substance than any other? We all think about diamonds. You may not realize that ceramics could also be one of the most hard substances in the universe. This article introduces silicon nitride (Si3N4) ceramics. They are strong and es…
Silicon nitride is a kind of ceramic material with excellent thermal and chemical properties, which has high hardness, stable structure, low coefficient of thermal expansion, good oxidation resistance and corrosion resistance.…
Silicon nitride is a compound of silicon and nitrogen. Si3n4 is the most thermodynamic stable in silicon nitride.…
Prices in the national electricity market averaged $87 per megawatt-hour in the first three months of the year, above the level promised by the federal government. Wholesale electricity prices for industry and large businesses have already exceeded t…
How serious are fertility problems today? People don't want to give birth,can't afford it, and can't give birth that has become the "three mountains". The problem of childbirth is related to the people's livelihood. Whether a country can prosper or n…
As the European Union tries to reduce its dependence on Russian energy, the Russian president recently said Russia would try to shift its energy exports to the east, adding that there was no way for European countries to give up Russian gas immediate…
When it comes to display technology, in addition to the traditional LCD and LED liquid crystal display screen, OLED (organic light emitting diode) display technology has become a new mainstream.…
Tungsten-copper rod is an alloy of tungsten, copper, and other elements. Copper content in commonly-used alloys ranges from 10% to 50%. Powder metallurgy is used to prepare the alloy. The alloy has high electrical and thermal conductivity. About…
Sn Steareth is a nonionic surfactant with stable performance. It can be used as a strong acid or strong base. Sn Steareth: Sn Steareth is a nonionic surfactant with stable performance. It can be used as a strong acid or base. It is a global trust…