High temperature resistance and thermal conductivity of silicon metal
Since there is very little naturally formed silicon, the vast majority of silicon in our life is artificially processed. Silicon metal has a strong hardness and can be used as an important abrasive. But different from other ordinary abrasive metal silicon has many properties, can be used in various fields, it has high temperature resistance, thermal conductivity, electrical conductivity and so on. The following will introduce the properties of silicon metal and its basic structure.
The high temperature resistance and thermal conductivity of silicon metal make it one of the preferred kiln furnishings for tunnel kilns or shuttle kilns. The electrical conductivity of silicon metal makes it an important electric heating element. Silicon metal is a typical stable compound with covalent bond. Theoretically speaking, all silicon metals are composed of SiC tetrahedron, the difference is only parallel bonding or anti-parallel bonding. There are 75 variations of SiC, all of which can be divided into square, hexagonal and rhombic systems. α-SiC is high temperature stable type,β-SiC is low temperature stable type. β-SiC can be converted to α-SiC at 2100 ~ 2400℃, and β-SiC can be prepared from a simple mixture of silicon and carbon at about 1450℃. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques can be used to analyze and quantitatively determine the polytype of SiC microstructures. In order to distinguish the different structures, we need to have the corresponding naming method. Named method is commonly used: the low temperature type of cubic silicon metal called β -- SiC, and the rest of the hexagonal, rhombic cell structure is called α -- SiC. This method of nomenclature is not consistent with the conventions of phase law and mineralogical nomenclature, but it is very popular because of its convenience.
Above is the nature of silicon metal and its description, the basic structure of our company a large number of production of silicon metal, if you want to get a deeper understanding of silicon metal or buy need can call contact us, also can log on to our website for online ditch, we will be patient for you to solve all the confusion, if you want to buy silicon metal, we will provide you with high quality silicon metal to meet your needs.
