Quartz Glass Sheets

YFR Tech manufactures infrared heating lamps and a Power control system. In addition, we have experience in manufacturing and processing natural quartz glass, and clear and frosted quartz glass products in a variety of shapes and sizes to meet customer needs.

• Quartz Tubes

• Single-Ended Sealed Tubes

• Quartz Rods

• Quartz Glass disc

• Quartz Square Flakes

• Quartz plate

• Half-round Quartz sheet

• Customized according to customer's drawing

• Laboratory Supplies

YFR Tech can cold process, hot process, and polish the material. Our high-quality materials, processing, and timely delivery make our quartz products equally marketable.

1. What is the Quartz Glass Sheet?

Quartz sheets are usually smelted, cut and ground from quartz, and their silica content can reach more than 99.99%. The hardness is Mohs 7, and it has the characteristics of high temperature resistance, low thermal expansion coefficient, thermal shock resistance, and good electrical insulation performance. Quartz sheets are usually colorless and transparent, and the visible light transmittance is above 85%.

2. Optical properties of quartz plates

The optical properties of quartz sheets are unique. It can transmit far ultraviolet light, which is the best of all ultraviolet transmitting materials, and can pass through visible light and near-infrared spectrum. Quartz glass has the characteristics of high temperature resistance, extremely small thermal expansion coefficient, good chemical stability, bubbles, stripes, and uniformity. And its birefringence is comparable to that of general optical glass. Therefore, it is an indispensable optical material with high stability optical coefficient working in various harsh occasions.

Advantages of Quartz Glass Sheets/Plates/disc:

1. High temperature resistant, high-purity transparent quartz glass substrate, quartz glass plate can work continuously at 1200°C, and even work at 1450°C for a short time. Its softening temperature is 1650°C, and the melting temperature is 1750-1800 °C.

2. Corrosion resistance, except for hydrofluoric acid, the optical grade quartz plate does not react with any acid-base except hydrofluoric acid. The stability is 30 times that of ceramics and 150 times that of stainless steel.

3. Excellent thermal shock stability

4. High transmission to 85%

5. Electric insulation. It is 10000 times of usual glass

Applications

• Semiconductors, electric light sources

• Semiconductor communication devices, lasers

• Optical instruments, laboratory equipment

• Electrical equipment, medical equipment

• High temperature and corrosion resistant chemical instruments, chemical industry

• Aerospace Engineering

• Electronics industry, metallurgical industry

Specifications

Compressive Strength	>1100Mpa	Coefficient of thermal expansion	5.5×10-7cm/cm.°C
Bending Strength	67Mpa	Hot work temperature	1750~2050°C
Tensile Strength	48.3Mpa	The temperature for a short time	1500°C
Poisson's Ratio	0.14~0.17	The temperature for a long time	1200°C
Elastic Modulus	71700Mpa	Resistivity	7×107Ω.cm
Shearing Modulus	31000Mpa	Dielectric Strength	250~400Kv/cm
Moths Hardness	5.3~6.5(Moths Scale)	Dielectric Constant	3.7~3.9
Deformation Point	1350°C	Dielectric absorption coefficient	<4×104
Specific Heat(20~350°C)	670J/kg °C	Dielectric loss coefficient	<1×104
Thermal Conductivity(20 °C )	1.4W/m °C	Typical Mechanical Property of quartz glass plate

Classifications

	JGS1(ZS-1)	JGS2(ZS-2)	JGS3(HS)
Spectral characteristics	180-2500nm	200-2500nm	260-3500nm
The average transmittance	90%	85%	85%
Bubble class	0	2	2
Birefringence	1-2	1-2	1-2
Grain structure	1	2	2
Fringe	1-2	2	2
Uniformity	1-2	2	2
Fluorescence	1	2	2
Radiation Performance	Does not change color	Sight discoloration	Change color