Thermal properties of quartz glass - quartz glass view mirror
The thermal coefficient of quartz sight glass, 5.5 x 10-7/ C, only ordinary sight glass 1/12 ~ 1/20. to 1200 DEG C after the provisions of the Ministry of water to the sample into the rapid burning, repeated more than three times is not allowed to burst. The quartz sight glass can be made into a zero coefficient material after adding a proper amount of titanium, which has been applied in laser technology, astronomy and technology.
Use of temperature in quartz glass lens
Crystal glass fused silica sight glass at 1100 C 1300 C
Synthetic quartz sight glass 950 C 1200 C
No quartz sight glass 800 C 1000 C
The comparison of the calorific value of the quartz sight glass to the other materials (the value of the 1 meter long sample)
Comparison of heat value at 0~500 C (mm) 0~1000 C (mm) (0~500 degrees C)
Quartz sight glass 0.27 0.481
Hard glass view mirror 1.8 - 6.7
Flat glass view mirror 5 - 18.3
High alumina brick 4 7.9 14.8
Silicon carbide material 2.3 4.5 8.5
Copper 9 - 31.5
7 / 25.9 of 14.9 carbon steel


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