CORNING VYCOR® 7913

Vycor® is a 96% silica glass used for high temperature applications.

Transmission (%)

Wavelength (nm) thickness 1.20mm

• Superior optical quality
• Tight dimensional control
• Thermal and chemical properties ideally suited to high temperatures
• Easy conversion from fused quartz
• Excellent thermal shock resistance

	Metric
Density	2.18g/cm3
Young’s Modulus	6.75 x 103 kg/mm2
Poisson’s Ratio	0.19
Shear Modulus	2.85 x 103 kg/mm2
Knoop Hardness (KHN100)	487

Softening Point	1530° C
Annealing Point	1020° C
Strain Point	890° C

Coefficient of Expansion (0-300°C)	7.5 x 10-7/ °C
Specific Heat 25 °C	0.18 cal/g °C
Thermal Conductivity 25°C	0.0033 cal cm sec cm2 °C
Thermal Diffusivity 25°C	0.0090 cm2 sec
Continuous Operating Temperature	900°C

Refractive Index (589.3nm)	1.458
Birefringence Constant	360 nm/cm kg/mm2

WHILE EVERY ATTEMPT HAS BEEN MADE TO VERIFY THE SOURCE OF THE INFORMATION, NO RESPONSIBILITY IS ACCEPTED FOR ACCURACY OF DATA.