產品資訊 - Silicon Carbide Lumps Super Grade SiC98->chemical

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Silicon Carbide Lumps Super Grade SiC98

產品分類 :

化學->其他->化學製品

產品規格

Model No:	2017First GradeSi98

Country	CN
Packing	bag
Minimum Order	100
Payment Term	L/C,T/T

產品描述

Silicon Carbide (SiC)


General description:  The molecular formula of silicon carbide is SIC, it is generated by SiO2 and petro coke or anthracite through reduction reaction under the condition of high temperature, there are two kinds of it: black SIC and green SIC. Green SIC is produced by putting NaCl into the raw material during the processing period whose properties are better than the black SIC of the same grade.


Properties: Physical properties of SIC is extreme hardness, high temperature-resisting ,chemical erosion resisting, radiation resisting and good electric conductivity and thermal conductivity, low thermal expansion, it`s Moh`s hardness is 9-9.5.


Usage:  It is widely used in the fields of abrasive, grinding, heat resistance, electronics, aviation, metallurgy and ceramics and so on.

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Used as abrasive materials
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Used as deoxidizer and high-temperature resistant material
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High purity material can be used in producing semi-conductor.Sic fabrics.
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</ul>

Silicon Carbide Lumps


Size: 0-10MM/1-10MM/1-5MM/0-25MM/0-100MM or as per buyer`s requirement.


packing:1mt plastic woven bags or as per buyers` requirement.


Processing method:Crushing and so on.


Specification:


<img src="http://i.bosscdn.com/product/65/1b/63/6dec2ff9541c9a48fbb6a5ecd1.png@watermark=2&color=I0ZGRkZGRg%3D%3D&type=ZHJvaWRzYW5zZmFsbGJhY2s%3D&size=20&p=9&t=80&text=eWlmYWdvbmdtYW9pZC5ib3NzZ29vLmNvbQ%3D%3D" title="Silicon Carbide Lumps" alt="Silicon Carbide Lumps" />


 


Due
to its stable chemical properties, high thermal conductivity, small
coefficient of thermal expansion and good wear resistance, silicon
carbide has many other applications besides abrasive materials. For
example, silicon carbide powder can be coated on the turbine wheel or
the cylinder block in a special process The
inner wall can improve its wear resistance and extend the service life
of 1 to 2 times; to be made of advanced refractories, heat shock, small
size, light weight and high strength, energy-saving effect. 



 



Low-grade
silicon carbide (about 85% SiC) is an excellent deoxidizer that
accelerates the rate of steelmaking and facilitates the control of
chemical composition and the quality of the steel. In addition, silicon carbide is also used extensively in the production of silicon carbide rods for electric heating elements.


 



Pure silicon carbide is a colorless and transparent crystal. Industrial
silicon carbide due to the impurities contained in different types and
content, but pale yellow, green, blue and even black, with its purity
varies with purity. [3]
Silicon carbide crystal structure is divided into hexagonal or
rhombohedral α-SiC and cubic β-SiC (called cubic silicon carbide).


 



 α-SiC
forms many different variants due to the different stacking sequences
of carbon and silicon atoms in its crystal structure, and more than 70
species have been found. β-SiC at 2100 ℃ above into α-SiC. Industrial
production of silicon carbide is the use of high-quality quartz sand
and petroleum coke in the resistance furnace refining. The refining of the pieces of silicon carbide, crushing, acid wash,
magnetic separation and screening or water made of various particle size
products.


 


 


 
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