Friction is an unavoidable natural phenomenon. The fuel used to reduce the friction and wear of mechanical parts each year accounts for 1/3 of the total fuel consumption. Besides, friction can cause unproductive loss of mechanical energy, shorten the life of the machine, and reduce mechanical efficiency. To solve the above problems, it is particularly essential to find substances that can reduce friction and reduce wear. Therefore, lubricants are added, and to improve the tribological properties of oils; appropriate additives are often added to the lubricants. Oil additive refers to a single agent or a mixture of several individual agents that are mixed according to a certain proportion and blending technology and can meet the requirements of a certain quality level.
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Is boron amorphous or crystalline?Boron can be prepared in several crystalline and amorphous forms. The well-known forms of crystallization are α-rhombohedral (α-R), β-rhombohedral (β-R) and β-tetragonal (β-T). In spec…
What is copper oxide?Copper oxide is an inorganic substance. Copper oxide chemical formula is CuO. It is a black oxide of copper. Slightly bisexual and slightly hygroscopic. Insoluble in water and ethanol, easily soluble in acid, thermally stable, de…
Expandable graphite or exfoliated graphite is made from the naturally occurring mineral graphite. The layered structure of graphite allows molecules to be inserted between the graphite layers. By adding acid, graphite sulfate can usually be converted…