A wide lineup ranging from an average particle diameter of about 0.3µm (#30000) to 60μm is also suitable for fillers that provide insulation and wear resistance!
"WA" is a white alumina powder composed of α-type corundum crystals with an Al2O3 purity of 96.0% or higher. White fused alumina is chemically inert, heat-resistant, and possesses extremely high insulation properties, as well as hardness second only to silicon carbide. For this reason, it is also used as a filler material for enhancing insulation and wear resistance. Our white fused alumina offers a wide range of products with average particle sizes from approximately 0.3µm (#30000) to 60µm (#240). It is characterized by a sharp particle size distribution and stable particle shape, allowing us to meet our customers' specific needs. [Expected Effects] - Electrical insulation filler (improving insulation for low to high voltage components, etc.) - Wear-resistant filler (enhancing durability of resin components, etc.) - Raw material for friction materials (improving friction properties of brake pads, etc.)
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Fujimi Incorporated has been a pioneer in the precision artificial abrasive materials industry since its founding in 1950, continuing its unique journey by leveraging classification technology and other advancements. The products born from accumulated know-how and research and development capabilities have evolved from polishing materials for optical lenses to essential components in advanced industries requiring high precision, such as mirror polishing of semiconductor substrates represented by silicon wafers, CMP (Chemical Mechanical Planarization) necessary for multilayer wiring of semiconductor chips, and polishing of hard disks for computers. Recently, we have also been actively engaged in the development of polishing and grinding materials for surface processing in fields such as LED, displays, and power electronics, as well as in applied areas utilizing powder technology. Additionally, we provide thermal spray materials for various industries, including steel, aerospace, and semiconductors.