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Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical
Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical
Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical
Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical
Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical
Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical

Germany Zerodur Zero Expansion Glass Ceramic/Germany Zerodur Glass/Zerodur Optical

Min.Order: 1
Product origin: Shanghai, China
Infringement complaint: complaintComplaint
US$ 600 ~ 750

Description
General Introduction: This ZERODUR glass-ceramic has been one of the Germany manufactuer's most unique and extraordinary products for over 50 years. With an extremely low-thermal-expansion, it's essential for a large number of demanding high-tech applications requiring exceptional precision.

Products Name: Germany Zerodur Zero Expansion Glass Ceramic
Alias Germany Zerodur Zero Expansion Glass Ceramic, Zerodur glass, Zerodur fused silica, Zerodur quartz, zerodur, Zerodur K20, K20 glass, K20 glass,etc

Main Characteristics:
1).Highly accurate under extreme conditions
The extremely low-thermal-expansion of ZERODUR is homogenous throughout the entire bulk volume, which makes it ideal for a large range of applications involving precise positioning or imaging under changing temperature conditions.

2).Impressive machinability from small to large
Thanks to its extraordinary machining properties, ZERODUR can be manufactured in a variety of sizes and shapes, from tiny prisms to meter-sized mirror blanks. High degree light-weighting and surfaces optimized for bending strength are key areas of the manufactuer's expertise, which makes ZERODUR ideal for space applications.

3).Product variants
THis ZERODUR is suitable for many high-tech applications, ZERODUR TAILORED offers the best material for individual temperature requirements, and ZERODUR K20 is suitable for your high-temperature applications.

4).Low-thermal-expansion even in harsh environments
The inorganic, non-porous lithium aluminum silicon oxide glass-ceramic, ZERODUR is characterized by its extremely low-thermal-expansion, which is homogeneous throughout the entire volume. Additionally, it possesses a very low rate of imperfections, high strength compared to other glass-ceramics and is transparent to visible light. Smooth surfaces with a roughness in the sub-nm range are also achievable.

Thermal Expansion Properties:
ZERODUR can be supplied with a mean coefficient of linear thermal expansion (CTE) in the temperature range 0°C to 50°C in three expansion classes as follows:
CTE (0°C; 50°C) Specification tolerances
Expansion Class 0: 0 ± 0.02 · 10-6/K
Expansion Class 10 ± 0.05 · 10-6/K
Expansion Class 20 ± 0.10 · 10-6/K
Tighter tolerance available upon request.

Thermal Conductivity:
ITEMZerodurZerodur K20
Thermal Conductivity (W/(m•K))1.461.63
Thermal Diffusion (×10-4m2/s)0.72-
Specific Heat (kJ/(kg•K))0.800.90

Mechanical Properties:
ItemUnitZerodurZerodur K20
Densityg/cm32.532.53
Yong's ModuleGPa90.384.7
Poisson's ratio 0.240.25
Compression strengthGPa--
Bending strengthMPa--
Tensile strengthMPa--
Torsional rigidityGPa--
Vickers hardnessGPa---
Knoop Hardness
HK 0,1/20 (ISO9385)		-620620
Abrasion Aa*-56.1-
Refractive index nd-1.5424-
Softening pointºC--
Annealing pointºC--
Strain pointºC--
Specific heat(26ºC)kJ/kgK2.552.55
Thermal conductivity ratio(26ºC)cal/cm.sec.ºC--
Thermal conductivity ratio(100ºC)Cal/cm.sec.ºC--

Main Applying Fields:
Applying Fields:ZERODUR has become a determining factor in the performance and quality of many spectacular applications that employ modern technology:
1).Stages and mirrors for IC and LCD lithography equipment
2).Mirror substrates for segmented and large monolithic astronomical telescopes
3).Ultra light weight mirror blanks
4).Standards for precision measurement technology
5).High precision mechanical parts, e.g. ring laser gyroscope bodies
***** 

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 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.

Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;

Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy--return, replace & refund policy.
For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.
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