Silicon Dioxide (SiO2)-Sputtering Target

Characteristic

Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO₂, most commonly found in nature as quartz and in various living organisms. is an acidic oxide, corresponding to the hydrate is silicate (H₂SiO₃).Silicon dioxide is one of the most complex and abundant families of materials, both mineral and synthetic.SiO₂ crystal has a variety of crystal types, and its basic structural unit is tetrahedron.

Chemical formula：SiO₂

Molar mass：60.08 g/mol

Appearance：Transparent solid (Amorphous) ;White/Whitish Yellow (Powder/Sand)

Density：2.648 (α-quartz), 2.196 (amorphous) g·cm⁻³

Melting point：1,713 °C (3,115 °F; 1,986 K) 

Boiling point：2,950 °C (5,340 °F; 3,220 K)

Magnetic susceptibility (χ)：−29.6·10⁻⁶ cm³/mol

Thermal conductivity：12 (|| c-axis), 6.8 (⊥ c-axis), 1.4 (am.) W/(m⋅K)(p12.213)

Refractive index (nD)：1.544 (o), 1.553 (e)(p4.143)

Application

The network structure of SiO₂ determines its excellent physical and chemical properties. In addition, SiO₂ is widely existed in nature and has been widely used by humans since ancient times.Silica and other compounds are fused at high temperatures and rapidly cooled to produce glass.It is also a major component of sand and quartz.It is the main raw material for semiconductor and solar panel applications.