Overview
Titanium Diboride (TiB2) is a ceramic compound known for its exceptional hardness and thermal stability. Available in both micron and nano powder forms, TiB2 is widely utilized in high-performance industrial applications. Its unique combination of properties makes it a preferred material for demanding environments. TiB2 powders are synthesized through various methods, including carbothermal reduction and self-propagating high-temperature synthesis (SHS). The choice of synthesis method impacts the powder's purity, particle size, and cost, which are critical factors for B2B procurement.
Physical and Chemical Properties
TiB2 exhibits a hexagonal crystal structure, contributing to its high hardness (approximately 25-35 GPa) and melting point (3225°C). Its thermal conductivity is comparable to some metals, making it suitable for heat-resistant applications. The material is chemically inert, resisting attacks from acids and alkalis under normal conditions. TiB2 powders are typically gray-black with a metallic luster. The nano-sized particles offer enhanced sintering properties, enabling the production of dense ceramic components. However, the high reactivity of nano-powders requires careful handling to prevent oxidation or contamination.
Main Applications
TiB2 is extensively used in cutting tools and wear-resistant coatings due to its hardness and durability. It is also employed in armor plating for military vehicles, where its lightweight and high strength are advantageous. In electronics, TiB2 serves as a conductive ceramic in cathodes and crucibles for aluminum smelting. The material's refractory properties make it ideal for high-temperature environments, such as furnace linings and thermocouple sheaths. Recent advancements have explored TiB2 in additive manufacturing, where its powders are used to 3D print complex ceramic parts with superior mechanical properties.
Safety and Storage
TiB2 powders, especially in nano form, pose inhalation risks and should be handled in well-ventilated areas or under fume hoods. Personal protective equipment (PPE), including gloves, goggles, and respirators, is recommended to minimize exposure. Skin contact should be avoided to prevent irritation. Storage conditions are critical to maintaining powder quality. TiB2 should be kept in airtight containers away from moisture and oxidizing agents. For long-term storage, desiccants or inert atmospheres can prevent degradation. Proper labeling and segregation from incompatible materials are essential for safety compliance.
B2B Procurement Guide
When procuring TiB2 powders, buyers should prioritize purity (typically 99% or higher) and particle size distribution, which directly influence performance in end-use applications. Reputable suppliers provide certificates of analysis (CoA) detailing these parameters. Cost considerations include bulk discounts and shipping logistics, especially for international purchases. Buyers should also evaluate supplier reliability, lead times, and technical support. For specialized applications, custom formulations or coatings may be available, but these often come at a premium price.
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