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…
Hollow glass balls are hollow spherical powdered inorganic nonmetallic materials. Their particle size is 5-100mm with a thickness of 1-2mm. The compressive strength is 3-125MPa. The following is a list of the most recent articles about Hollow Gl…
Molecular Sieve 13X (alkali metal silicon aluminate) is a particular type. Its effective aperture in sodium salt forms is 10 angstrom. However, it can adsorb molecules that are smaller than 10 to 10 angstrom. It is suitable for use as catalyst carrie…
Due to the laminar structure of graphite, atoms or small molecules can be introduced between the carbon layers (intercalation）…