Knowledge About High Purity Graphite Powder Properties

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Graphite powder A type of mineral powder. It’s composed mainly of carbon simple substance. It has a dark grey color and is soft in quality. Graphite can be used in a variety of applications, including refractory, conductive, wear-resistant lubricating, as well electrical conductivity.

Properties of high purity graphite powder

At room temperature graphite powder has a stable chemical composition. It is insoluble with water, dilute acid, alkalis, organic solvents, and alcohol. It is more difficult to oxidize graphite by acids under heating. However, at high temperatures it can react with several metals to create metal carbides which can smelt high-temperature metals.

Graphite is a sensitive chemical substance. The resistance of graphite will fluctuate in different environments. Its resistance value will also change. But one thing will never change. Graphite powder, a very strong non-metallic conductive metal, is one. If graphite is present in an insulating item, it can be energized as a wire.

Because of its unique structure graphite powder exhibits the following properties:

Types that are resistant to high temperatures: The melting point and boiling point of graphite respectively is 3850+-50 and 4325. Even when graphite powder is heated to ultra-high temperatures, it will not lose much weight and has a very low thermal expansion coefficient. The temperature rises and graphite powder’s strength increases. At 2000°C graphite powder’s strength doubles.

2) Electric and thermal conductivity. The graphite has an electrical conductivity that is one hundred times more than other non-metallic minerals. The thermal conductivity of graphite is greater than the one for metals like steel, iron, or lead. Temperature increases the thermal conductivity. Even at extreme high temperatures graphite can be used as an insulator.

2) Lubricity: The graphite powder’s lubricating properties are affected by the size and shape of its flakes. The lubricating power of graphite powder is dependent on the size and friction coefficient of the flakes.

4) Chemical stability Graphite powder is very stable at room temperatures and resists acid, alkali, and organic solvent corrosion.

5) Plasticity – Graphite powder can be mixed into extremely thin flakes and has good strength.

6) Temperature shock resistance: Graphite is resistant to extreme changes in temperature. The volume of graphite won’t change when the temperature suddenly changes. No cracks or other damage will result.

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