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Flake graphite is a type of natural crystalline graphite with a hexagonal layered crystal structure, appearing in a flaky form, hence the name flake graphite. Flake graphite has excellent physicochemical properties, such as high electrical conductivity, thermal conductivity, lubricity, good thermal stability, and resistance to acid and alkali corrosion. Additionally, the interlayer bonding force is relatively weak, making it easy to peel and modify.
Silica fume is actually a form of silica ash, but it usually refers to the ultra-fine silicon dioxide powder obtained as a by-product in industrial production. However, the term 'silica fume' mentioned in the market may be a figurative description of certain characteristics of silica ash, or it may refer to fibrous products containing silicon materials, such as silicon-based fiber materials used in friction materials or brake pads. For clarity, this discussion will mainly focus on the properties of silica ash and its applications in brake pads, although 'silica fume' may refer to different types of silicon-based materials.
Zirconium silicate powder is a powdered material made from zircon mineral through processes such as selection, crushing, and purification. Its chemical formula is ZrSiO₄, and it possesses a series of excellent properties including high melting point, high temperature resistance, wear resistance, corrosion resistance, and good dielectric performance.
Calcite is a calcium carbonate mineral, and it is the most common form of natural calcium carbonate. Therefore, calcite is a widely distributed mineral. Calcite crystals come in various shapes, and their aggregates can be clusters of crystals, granular, massive, fibrous, stalactitic, earthy, and so on.
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