Ultra-Low Expansion Optical Glass Plates for Precision Applications

Product Description

High-Performance Glass-Ceramic - Advanced Material for Multiple Applications

Product Description

  Glass-ceramic is a special advanced material composed of amorphous glass and fine crystals. It integrates excellent mechanical properties, high-temperature resistance, and unique optical characteristics. The fine crystalline structure endows glass-ceramic with higher strength and better wear resistance than ordinary glass, while maintaining its transparent or translucent performance. This high-performance material is widely used in construction, home appliances, precision equipment, and decoration industries, perfectly combining aesthetics and functionality.

 

 

High Strength & Wear Resistance: The unique crystalline structure provides outstanding mechanical strength and wear resistance, making it much more durable than ordinary glass, and able to withstand long-term use in high-frequency contact scenarios.

Excellent Thermal Stability: It has excellent high-temperature resistance and thermal shock resistance, which can maintain stable performance even in environments with extreme temperature fluctuations, making it suitable for high-temperature working conditions.

Superior Chemical Stability: Resistant to corrosion by acids, alkalis, salts, and other chemicals, ensuring stable performance in various harsh chemical environments and extending the service life of products.

High Light Transmittance & Aesthetics: It offers excellent light transmittance and maintains good transparency, which can meet the aesthetic requirements of decorative applications while ensuring functional performance.

UV Protection: Effectively blocks ultraviolet rays, providing reliable protection for equipment components and the human body from UV damage, especially suitable for applications requiring UV shielding.

 

Application Scenarios

Construction Industry: Used for exterior walls, windows, and curtain walls of high-end buildings. It combines elegant appearance with practical functions, enhancing the overall quality and durability of buildings.

• Home Appliances: Applied in kitchen equipment, electric stoves, heaters, and other products. Its excellent high-temperature resistance and corrosion resistance ensure safe and stable operation of household appliances.

• Instruments & Meters: Used in high-precision fields such as medical equipment and laboratory instruments. It serves as casings or windows to provide transparent protection while ensuring the accuracy of equipment operation.

• Decorative Design: Widely used in interior decoration, such as glass tabletops, glass wall panels, and other components. It enriches the visual effect of spaces and enhances the aesthetic sense of the environment.

• Heat Exchangers: Due to its excellent high-temperature resistance, it is suitable for industrial applications of heat exchange and heat transfer, ensuring efficient and stable heat transfer performance.

• Precision Manufacturing: Used as protective or supporting materials in precision processing and high-precision manufacturing processes. It can maintain structural stability under strict processing conditions and ensure the precision of finished products.
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  Our Advantages

Why Choose Our Glass-Ceramic?

1. Customization Capability: We provide full-process customization services from shape, specifications to packaging, fully meeting the personalized needs of different industries and application scenarios.

1. High-Quality Raw Materials: Adopting high-purity raw materials and advanced production processes, ensuring the consistency and stability of product performance.

1. Multi-Field Adaptability: With comprehensive performance advantages, it can be applied to multiple industries, providing one-stop material solutions for customers.

1. Reliable Quality Assurance: Strict quality control system covers every production link, from raw material inspection to finished product delivery, to ensure that each batch of products meets high standards.

Main Characteristics:
Extraordinary features
1) The zero expansion glass ceramics have special properties. When the temperature changes, the change of geometry and distance is almost zero.
2) Very low coefficient of thermal expansion (CTE), suitable for a wide range of temperatures
3) Excellent CTE uniformity throughout the material
4) The degree of defect is very low
5) A variety of accurate geometric shapes can be obtained by grinding process
6) When the residual roughness is less than 1 nm, the surface may be very smooth
7) Excellent chemical stability
8) All of these features enable extraordinary reproducibility for small components and for large ton telescopes used in astronomy

Product Parameters

Thermal Expansion Properties:

Model	Coefficient of Thermal Expansion
CCZ Regular	0.0±1.0×10^-7/˚C
CCZ HS	0.0±0.2×10^-7/˚C
Coefficient of Thermal Expansion of is guaranteed for the temperature range of 0~50°C.

Thermal Conductivity:

ITEM	CCZ	CCZ HS
Thermal Conductivity (W/(m•K))	1.51	1.52
Thermal Diffusion (×10^-4m^2/s)	0.00762	0.00775
Specific Heat (kJ/(kg•K))	0.777	0.773

Mechanical Properties:

Item	Unit	CCZ	CCZ HS
Density	g/cm^3	-	-
Yong's Module	GPa	90	90
Poisson's ratio		0.25	0.25
Compression strength	GPa	1.1
Bending strength	MPa	116	111
Tensile strength	MPa	55
Torsional rigidity	GPa	36	36
Vickers hardness	GPa	6.8	7.0
Knoop hardness	Kg/mm^2	6.0	6.4
Abrasion Aa*	-	62	64
Coefficient of thermal expansion	cm/cmºC	-	-
Softening point	ºC	-	-
Annealing point	ºC	-	-
Strain point	ºC	-	-
Specific heat(26ºC)	kJ/kgK	2.55	2.55
Thermal conductivity ratio(26ºC)	cal/cm.sec.ºC	-	-
Thermal conductivity ratio(100ºC)	Cal/cm.sec.ºC	-	-

Main Applying Fields:

Applying Fields:

High tech application Zero expansion glass ceramics have become a decisive factor in the performance and quality of many modern technology applications as following: 1).Platform and mirror for IC and LCD lithography equipment 2).Mirror substrate for segmented and large monolithic telescopes 3).Ultra light weight mirror blank 4).Technical standard for precision measurement 5).High precision mechanical parts, such as ring laser gyroscope

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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.

Detailed Photos

After Sales Service

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.