We manufacture BN (boron nitride) products with a short lead time.
BN (boron nitride) is a ceramic with excellent lubricating properties, high thermal conductivity, thermal shock resistance, low thermal expansion, and chemical stability. It has many similarities to graphite and is also referred to as white graphite. While graphite is dielectric, BN possesses high electrical insulation properties. It is used in applications such as fixtures for glass manufacturing, crucibles for metal melting, injection nozzles, electrical insulation components, and semiconductor manufacturing components. Additionally, BN-AlN, which is blended with AlN to enhance hot strength, can also be produced.
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basic information
【Properties】 BN Purity: 99.4% Bulk Density: 1.96g/cm³ Flexural Strength: 35MPa Thermal Conductivity: 50W/m·K Thermal Expansion Rate: -1×10⁻⁶/℃ Maximum Operating Temperature: 900℃ (oxidizing atmosphere) 2300℃ (inert atmosphere) 2100℃ (in vacuum)
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Applications/Examples of results
Glass manufacturing jigs, metal melting crucibles, injection nozzles, electrical insulation parts, semiconductor manufacturing parts.
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Company information
Our company was founded in 1887 (Meiji 20) in Seto City, Aichi Prefecture, a town known for its ceramics industry, as Yamato Ceramics. In 1957 (Showa 32), we relocated to our current location as Maruwai Yano Ceramics Co., Ltd., where we conducted further research on product materials and molding methods, leading to the production of items such as firing tubes, electric resistance bobbins, and insulators. Furthermore, we offer a variety of materials to meet all industrial needs, including alumina, magnesia, steatite, mullite, cordierite, silicon carbide, silicon nitride, and zirconia. In response to the increasing demand for ultra-high temperatures, we manufacture heat-resistant and insulating parts for industrial and household equipment, including insulators for electric heaters, using various materials.