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Corning Ule 7972 Ultra Low Expansion Glass

Corning Ule 7972 Ultra Low Expansion Glass

Product Item : RT20220504001#
Category： Materials
Type: Corning Optical Substrate
Substrate: Corning Ule-7972
Stress Optical Coefficient: 4.15 (Nm/Cm)/(Kg/Cm2)
Abbe Constant: 53.1
Product description：Corning Ule 7972 Ultra Low Expansion Glass/Corning Ule-7972 Glass/Corning Quartz
INQUIRY

General Introduction: Corning ULE 7972 Ultra Low Expansion Glass is a titania silicate glass with unique characteristics that has made it the material of choice in applications ranging from machine tool reference blocks to solid and lightweight mirror blanks for astronomical telescopes and space satellite applications. Experts in the semi- conductor industry have identified ULE® as a "material of choice" for EUV applications.

Products Name: Corning ULE 7972 Ultra Low Expansion Glass
Alias: Corning 7972, Corning 7972 glass, Corning 7972 low expansion glass, 7972 glass, ULE 7972, ULE 7972 glass, 7972 low expansion glass ,etc

Optical and Thermal Properties:
Optical Properties

Stress Optical Coefficient	4.15 (nm/cm)/(kg/cm3) [0.292(nm/cm)psi]
Abbe'Number(vd)	53.1
Refractive index (nominal CTE material)	nF (486 nm) 1.4892 nD (589 nm) 1.4828 nC (656 nm) 1.4801
dn/dt	20-40°C 10.68 x 10-6/°C 40-60°C 11.24 x 10-6/°C

Thermal Properties

Mean coefficient of thermal expansion 5ºC to 35ºC	0 ± 30 x 10-9/K [0 ± 30 ppb/ºC]
Thermal Conductivity (K)	1.31 w/(m • ºC) [1.13 kcal/(m • hr • ºC)]
Thermal diffusity (D)	0.0079 cm2/s
D.C. volume resistivity, 200ºC 100Hz (R)	1011.6 ohm • cm
Mean specific heat (Cp)	767 J/ (kg • ºC) [0.183 cal/(g • ºC)]
Strain point	890ºC [1634 ºF]
Annealing point	1000ºC [1832 ºF]
Softening point	1490ºC [2714 ºF]

Mechanical Properties:
1).Poisson's ratio (v): 0.17
2).Ultimate tensile stress (MOR): 49.8 MPa [7220 psi]
3).Knoop Hardness, 200g load: 460 kg/mm2
4).Density (p): 2.21 g/cm3 [0.079 lbs./in3]
5).Specific stiffness (E/P): 3.12 x 106 m [1.23 x 108 in.]
6).Shear Modulus (G): 29.0 GPa [4.20 x 106 psi]
7).Bulk Modulus (K): 34.1 GPa [4.95 x 106 psi]
8).Elastic Modulus (E): 67.6 GPa [9.80 x 106 psi]

Chemical Durability:
1).Excellent resistance to weathering.
2).Exhibits virtually no surface clouding or electrical surface leakage when subject to attack by water, sulfur dioxide, and atmospheric gases.
3).High resistance to attack by nearly all chemical agents..

Main Applying Fields:

Applying Fields:	LCD TV, computer monitor Glass substrate of notebook computer Ceramic carriers and filters for mobile emission control systems Optical fiber, optical cable, hardware and equipment for communication network Optical biosensors for drug development Optics in semiconductors, aerospace, defense, astronomy and Metrology
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Matching Custom Manufacturing Serivce:
Including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.
Matching processing equipments;
1).Single side lapping and polishing machines
2).Duble sided polishing machines
3).Ring throwing machines
4).DMG five-axis five-linkage spherical milling machine
5).DMG ultrasonic machining center
6).Super large scale gantry cnc machining center (2.0*2.0m)
7).Super large scale surface grinder (1.6m*1.6m)
8).CNC cutting machines
9).Thin plate cleaning machines
10).Ultrasonic trough cleaning machines
11).Plane interferometers
12).Two dimensional detectors
13).Ion beam polishing machines
14).Magnetorheological polishing equipments

Main Cooperation Materials Manufacturers:
CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC

Main Export Countries & Areas:
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.

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