High-purity milky quartz glass HPR3004
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High-purity milky quartz glass HPR3004
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Product Details
Using a rotation process, special wall thickness opal quartz tubes are produced, which can be used as calcination furnace tubes and heat insulation materials; opaque quartz glass is produced using a gas refining process, which can be processed into opal quartz plates. It has good heat insulation and temperature resistance properties and is mainly used for heat insulation accessories in semiconductor processing.
Metal Impurity Content (ppm)
| Model |
Al |
Fe |
Ca |
Mg |
Cu |
K |
Na |
Li |
|
HPR3004A |
25.0 |
0.5 |
0.8 |
0.1 |
0.1 |
1.6 |
2.2 |
0.3 |
|
HPR3004B |
45.0 |
1.0 |
1.5 |
0.75 |
0.15 |
2.5 |
5.0 |
1.5 |
Transmittance T4mm
| Model |
400nm |
500nm |
600nm |
700nm |
|
HPR3004 |
1.0% |
1.2% |
1.2% |
1.2% |
|
Physical and Mechanical Properties |
|
|
Density |
1.95 g/cm³ |
|
Compressive Strength |
1000 N/mm² |
|
Coefficient of Thermal Expansion (20℃-300℃) |
5.4x10⁻⁷/℃ |
|
Thermal Conductivity (20℃) |
1.24 W/m℃ |
|
Specific Heat (20℃) |
650 J/kg℃ |
|
Softening Point |
1600 ℃ |
|
Annealing Point |
1100 ℃ |
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