Quartz (SiO2)

Quartz, as a material, due to its unique properties, has proven itself as the main material for manufacturing:

quartz reactors,
quartz crucibles for monocrystalline silicon,
quartz viewing or protective windows, tubes,
quartz boats, filters and other products.

GN electronics has the ability to manufacture quartz products according to your drawings and/or technical specifications, both with and without metallization. Quartz products can be used for final products intended for ultraviolet disinfection, deposition of thin films, lithography in ultraviolet radiation, production of photomasks, manufacture of fiber optics products, for LEDs, etc.

Specifications

Ceramic Quаrtz

Properties	Condition	Value	Unit
Properties	Condition	Value	SiO2
Density		g/cм³	≥ 1,85-2,0
Bending strength		МPа	>25
Compressive strength		МPа	50-120
Porosity		%	<5-15
Coefficient of thermal expansion	100-1000 °C	10^-6 /°C	<0,6
Thermal conductivity	20C	W/м∙K	0,66
Max.working temperature		°C	1650

Glass Quartz

Properties	Conditions	Value	Unit
Properties	Conditions	Value	SiO2
Color			transparent, colorless
Density		g/см³	2,2
Flexural strength		МPа	67
Compressive strength		МPа	1100
Poisson's ration			0,14-0,17
Young's modulus		МPа	72000
Modulus hardness		МPа	31000
Mohs hardness			5,5-6,5
Transformation point		С	1280
Softening point		С	1780
Low thermal expansion coefficient	100-1000 °C	10^-6 /°C	<0,55
Thermal conductivity	20C	W/м∙K	1,4
Short-term use temperature		°C	1300
Long-term use temperature		°C	1100
Min thickness		мм	2
Max thickness		мм	20

Dielectric constant glass quartz

Properties	0-10⁶ Hz	3×10¹⁰ Hz

Clear	3,70	3,81
Not Clear	3,50	3,62

Dielectric loss tangent glass quartz

Properties	1 GHz	1 МHz	10⁷ Hz	10⁸ Hz	10⁹ Hz	3×10^{10 Hz}

Clear	5*10^-4	<1*10^-4	<1*10^-4	<1*10^-4	<1*10^-4	<4*10^-4
Not clear	(6-20)*10^-4	(5-15)*10^-4	(4-12)*10^-4	(4-12)*10^-4	(4-12)*10^-4	-

Application area

quartz reactors,
windows,
shelves,
boats,
crucibles,
chambers, etc.

Quartz (SiO2)

Specifications

Application area

See also