1、Physics Characters

2、Chermistry Characters

Mosi2, Heating Element is used in the high temperature under oxidizing atmosphere. It will form a SiO2,protecting film on its surface for preventing it continuing oxidized. When the temperature of element is over1700 ℃, the SiO2 protecting film is melted, during the oxidizing process, the SiO2 protecting film is formed again, and the element continues to be used. The Mosi, Heating Element must not be used in the temperature between 400 ℃ and 700℃ for a long time, otherwise the element will be cremated under the strong oxidizing function in the low temperature.

3、The Element Make Use of Tempers Effect in the Different Atmosphere