1. Alumina (Al2O3) ceramic substrate: ceramic substrate has the main advantages of high temperature resistance, high electrical insulation performance, low dielectric constant and dielectric loss, large thermal conductivity, good chemical stability, and similar thermal expansion coefficient to components , but the ceramic substrate is brittle, the substrate area is small, and the cost is high.
2. The close-packed hexagonal structure composed of oxygen ions, which is not easy to oxidize and high temperature makes it have a higher service temperature than other refractory fiber products, so it has a high melting point, high hardness and excellent wear resistance. It can provide 75-99% alumina content, and can be customized and metallized according to the drawings provided by customers.