SGS Synthetic Sapphire Crystal For Sapphire Lens / Electrical Insulator

Brand Name:SILIAN
Certification:SGS/ ISO
Model Number:Customized
Minimum Order Quantity:50pcs
Delivery Time:5-8 weeks
Payment Terms:Western Union, MoneyGram, T/T
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Location: Chongqing Chongqing China
Address: No.99 Tong Xi Road, Caijia Town, Beibei District, Chongqing,China
Supplier`s last login times: within 28 hours
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Product Details

Synthetic Sapphire Crystal Suitable For Sapphire Lens And Electrical Insulator​


Description


The research on synthetic sapphire has a long history, and the technology is constantly improving. The difference from natural corundum can be measured by basic gemological characteristics such as microscopic characteristics, dichroism and spectrum, and large instruments such as XRF can also be used for testing.


Specification


propertySapphire
Density3.98g/cm³
Hardness9(mohs)
Melting2053℃
Refractive Index1.762~1.770
Light Transmission≥85℃
Dielectric Permeabillty9.4@300kat A axis~
11.58@300kat Caxis
Thermal Capacity0.10(cal/℃)
Thermal Conductivity46.04@0℃ 25.12@100℃
12.56@400℃(W/(m.k))
Coefficient of Thermal Expansion6.7x10-6/℃ parallel to Caxis
5.0x10-6/℃ perpendicular to C axis
Chemical FormulaAL2O3
Crystal StructureHexagonal System
a=4.76A c=12.99A
Purity>99.996%

Hydrothermal method—Synthesis principle


The hydrothermal synthesis of sapphire further reduces the natural environment. Under high-pressure water-containing conditions, the crystal gradually crystallizes on the seed crystal.
Process flow
1. Put the raw materials and seed crystals into the autoclave containing water at the same time.
2. The water in the autoclave is heated to 200°C to make the water a hot and high-pressure dense fluid, thereby dissolving materials that cannot be dissolved under normal conditions.
3. Slowly cooling, the crystal grows on the seed crystal.


Identifying characteristics
1. External characteristics:
• Uniform color and high transparency
2. Internal characteristics:
• There are few internal inclusions, with jagged, corrugated or dendritic growth patterns, nail-shaped inclusions, yellow metal sheets, etc.


About Us


SILIAN is a professional manufacturer of optical glass, laser accessories and acrylic products. Our factory has advanced production equipment and strong technical force, such as large-scale laser engraving and cutting machine, CNC computer engraving and cutting machine, copying machine, etc., and constantly introduces new technology, new technology, new equipment, and strictly controls the quality in the material opening, grinding, polishing, hot bending, silk screen printing, etc, Fine workmanship. The products are mainly exported to Europe, America, Middle East, Southeast Asia, and South America.


Buying Guides

Customers need to know:


1. The products are made according to the requirements of customers. Please contact us before placing an order to confirm the detailed production process, quantity, production period, logistics and other relevant information.


2. Customization needs to know:

(1) plate Customization: please directly provide dimensions (length * width * thickness, and color quantity) (please consult customer service quotation).

(2) product processing: please send drawings to the owner, such as CDR, AI, CAD and other vector drawings, and inform the thickness, (consult customer service quotation) to give you a quotation. No friends can draw by hand and take photos for us. We need drawings for complex processing.


3. Please confirm the size and drawing carefully before photographing. Once processed, it will not be returned or changed.


4. There is a certain tolerance for processing and material thickness. Buyers who require no difference should be merciful! The tolerance is about 0.3mm. Once photographed, we do not accept any return or exchange due to tolerance!



China SGS Synthetic Sapphire Crystal For Sapphire Lens / Electrical Insulator supplier

SGS Synthetic Sapphire Crystal For Sapphire Lens / Electrical Insulator

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