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Element Properties: 23-29 atomic number

VANADIUM Atomic symbol: V Atomic weight: 0.9415 Atomic number: 23 Electron configuration: 2-8-11-2 Oxidation states: +2, +3, +4, +5 State of matter: solid Heavy metal, brittle Discovered in 1801 by Andrès Manuel de Rio Boils at 3000°C, melts at 1890°C Notes: Vanadium is a light gray or white lustrous powder, it does not tarnish in […]

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Overview of Advanced Ceramics

Advanced ceramics can be divided into structural ceramics, tool ceramics, and functional ceramics according to their different uses. Structural Ceramics The main materials of structural ceramics are alumina (Al2O3), silicon nitride (Si3N4), silicon carbide (SiC), and hexagon boron nitride ceramics (BN). Alumina (Al2O3) The main composition is Al2O3, and the general content is more than […]

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Element Properties: 16-22 atomic number

SULFUR Atomic symbol: S Atomic weight: 32.066 Atomic number: 16 Electron configuration: 2-8-6 Oxidation states: +4, +6, -2 State of matter: solid Non-metal Discovered in ancient times Boils at 444.7°C, melts at 112.8°C Notes: Because sulfur is the least reactive non-metal at room temperature, much occurs free in nature. Chemically combined, sulfur is found as […]

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Element Properties: 9-15 atomic number

FLUORINE Atomic symbol: F Atomic weight: 18.9984032 Atomic number: 9 Electron configuration: 2-7 Oxidation states: -1 State of matter: gas Non-metal Discovered in 1886 by Henri Moissan Boils at -188°C, freezes at -220°C Notes: Fluorine is the most active member of the halogen family, and produces the most stable compounds. It is very poisonous because […]

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Element Properties: 1-7 atomic number

HYDROGEN Atomic symbol: H Atomic weight: 1.00794 Atomic number: 1 Electron configuration: 1 Oxidation states: ±1 State of matter: gas Alkali metal Discovered in 1790 by Henry Cavendish Boils at-252.8°C, melts at-259.14°C Notes: Hydrogen is a colorless, odorless, tasteless gas that can be flammable or explosive when mixed with air, oxygen, and chlorine. Hydrogen is not very […]

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Basic Information of Pyrolytic boron nitride (PBN ceramic)

Pyrolytic boron nitride is an anisotropic high-temperature ceramic with high electrical resistance and good thermal conductivity. It is suitable for applications requiring high strength, low thermal expansion coefficient and good thermal shock resistance. Pyrolytic boron nitride also has thermal shock resistance and is a superior sealant that protects graphite from corrosive environments, such as most […]

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