Ceramic Rods:Key Materials and Applications

Ceramic Rods:Key Materials and Applications

Ceramic rods are cylindrical structural components mainly composed of inorganic non-metallic materials such as oxides (such as alumina and zirconia), carbides (such as silicon carbide), and nitrides (such as silicon nitride). These bars are manufactured through high-temperature sintering or precision machining and have excellent properties, including high hardness (Mohs hardness up to 9), extreme temperature resistance (able to withstand temperatures above 1600 ° C), corrosion resistance (acid, alkali, and solvent resistance), low density (30-50% lighter than metals), and electrical insulation.

In industrial environments, ceramic rods play a crucial role in extreme conditions. For example, zirconia rods are used as valve stems in chemical plants due to their resistance to corrosive media such as hydrofluoric acid. Aluminum oxide rods serve as thermocouple sheaths in kilns and can withstand temperatures exceeding 1400 ° C.

In the field of electronics, their low dielectric loss (<0.0001 at 1MHz) and anti-static performance make them indispensable. Silicon nitride rods are integrated into 5G base station circulators to achieve signal stability, while ultra smooth aluminum oxide rods ensure pollution-free wafer transfer in semiconductor manufacturing (cleanroom level 1 standard).

Ceramic rods combine unparalleled durability and versatility, continuing to drive innovation in various industries from energy to biotechnology, providing solutions where traditional metals or polymers are insufficient.