Nano-crystalline material is a non-metallic mineral that exhibits adsorptive properties toward harmful gases—such as formaldehyde, benzene, and TVOCs—generated during interior decoration, as well as toward automotive odors and general indoor pollutants. Laboratory tests have demonstrated that, over
Graphite felt: It is made by carbon felt being subjected to a graphiteification process at a temperature of over 2000°C (usually 2200 - 2500°C) under vacuum or an inert atmosphere. This process makes the carbon atoms in the material arrange in a more ordered manner, and the structure becomes closer
The core method for detecting the resistivity of the pure carbon sliding plates of the electric locomotive pantographs of the Ministry of Railways is based on the calculation of the resistance of the sample and its dimensions. Environmental control and repeated measurements are the key to ensuring a
