Introduction
Black quartz glass material has high purity, high optical absorption, high emissivity, and low thermal conductivity at the same time, so it can improve the thermal uniformity of the process environment and shield the heat radiated outward during the process, thus increasing the freedom of thermal management. In addition, it has better processing properties than other black ceramics.
Physical Property
Density（g/cm3 ）
Porosity
Pore size
Expansion coefficient（ 0-900℃）10-6 ℃ -1
Specific Heat（J/g·K） 20℃
Max. working temperature-continuous℃
Max. working temperature-short term ℃
Dielectric loss (room temperature) 13.56 MHz
Thermal Conductivity（20℃）（W/m·k）
2.19~2.20
＜0.5%
＜10 μm
0.60
0.73
1150
1300
90×10-4
1.65
Chemical purity
Impurity Typical Value (ppm)
Al
11.57
Ca
0.90
Mg
0.03
Cu
0.0
Fe
0.77
Ni
0.02
Mn
0.00
Li
0.25
K
0.31
Na
0.91
Zr
1.52
Ti
1.21
B
0.02
Co
0.00
總和
17.50
Optical Properties
Emissivity （10-20μm）
>80%
Emissivity of FSTQZ?B at 1000℃.
Electric Fused Black Quartz
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