Product Details
Place of Origin: Chongqing, China
Payment & Shipping Terms
Minimum Order Quantity: 0.5kg
Price: 1300USD-3700USD
Packaging Details: Caron, Air bubble films
Delivery Time: 4-8weeks
Payment Terms: T/T, Western Union
Supply Ability: 5PCS per month
Material: |
Sapphire |
Growing Method: |
CZ |
Weight: |
Around 5kg |
Use: |
Jewlery, Watch Case, Watch Glass |
OEM: |
Yes |
Processing: |
According To Drawing |
Delivery Port: |
Chongqing |
Delivery Time: |
According To Quantity |
Material: |
Sapphire |
Growing Method: |
CZ |
Weight: |
Around 5kg |
Use: |
Jewlery, Watch Case, Watch Glass |
OEM: |
Yes |
Processing: |
According To Drawing |
Delivery Port: |
Chongqing |
Delivery Time: |
According To Quantity |
Purple Color Synthetic Ruby Boule Raw Materials For Accessories
Introduction of Synthetic Sapphire Boule
Sapphire, which is derived from the Latin Spphins, which means blue; it belongs to the corundum group of minerals in the trigonal crystal system. In the gem world, all colors of gem-grade corundum other than rubies are called sapphires.
The main component of sapphire is alumina (Al2O3). Corundum contains trace elements such as iron (Fe) and titanium (Ti), and presents colors such as blue, sky blue, and light blue, among which the bright sky blue is the best.
Sapphire has a melting point of 2040°C, and its high melting point makes it inevitable that volatiles such as thermal systems and crucibles exist in the crystal growth environment. A common type of defects in the growth of sapphire crystals by the melt method is that scattering points, bubbles, and inclusions are easily generated during the crystal growth process.
It has a relatively large impact on the quality of the crystal. Common inclusions in crystals include impurity elements from raw materials and crucible materials, and fragments of tungsten, molybdenum and other materials used as crucibles, heating bodies and heat preservation devices.
One of the reasons for inclusions is that there is a phenomenon of impurity removal in the process of growing crystals. The impurities in the raw materials are discharged to the edge, and the impurities in the crucible diffuse from the edge to the center. When the impurity concentration reaches or exceeds the saturation concentration of the impurity in the melt It precipitates out from time to time, forming a radiation-type impurity group with fewer central inclusions and more peripheral inclusions. The small size of the package is mainly related to the purity of the alumina raw material, the purity of the crucible material, and the density of the crucible.
Parameters of Synthetic Sapphire Boule
General | Chemical Formula | Al2O3 |
Cystal System | Hexagonal system | |
Melting Temperature | 2040℃ | |
Thermal | Thermal Expansion | Parallel to C-axis:6.7*10-6 |
Perpendicular to C-axis:5.0*10-6 | ||
Specific Heat | 0.18 Cal/gm°K(25℃) | |
Mechanical | Density | 3.98-4.1g/cm3 |
Hardness | 9 Moh's Scale | |
(Hv)≥1700kg/mm2 | ||
Modulus of Elasticity | 340-380Gpa | |
Compressive Strength | 2.1Gpa | |
Tensile Strength | 0.19Gpa | |
Optical | Index of Refraction | Parallel to C-axis:1.769 |
Perpendicular to C-axis:1.769 | ||
Index of IR Transmission | 85% | |
Electrical | Electrical Resistance | >1016Ω/cm(25℃) |
Dielectric Constant | 7.5-10 | |
Chemical | Erosion Resistance | Can not be corroded by adid or alkali at mormal temperature, only can be corroded by HF at 300℃ |
Synthetic Sapphire Boule Details
Basic Structure of Sapphire Boule
The composition of sapphire is alumina (Al2O3), which is formed by covalent bonding of three oxygen atoms and two aluminum atoms. Sapphire Boule crystal structure is a hexagonal lattice structure. In terms of color, pure alumina crystals are It is transparent and colorless. The sapphire shows different colors due to the ion penetration of different color elements and the growing sapphire. When titanium ions (Ti3+) and iron ions (Fe3+) are contained in sapphire crystals in nature, the crystals will appear and become blue sapphire (Blue Sapphire). When the crystal contains chromium ions (Cr3+), the crystal will appear red and become ruby (Ruby). When the crystal contains nickel ions (Ni3+), the crystal will appear yellow and become yellow sapphire. Sapphire crystal belongs to the intermediate crystal family and the trigonal crystal system in the symmetry classification of crystals.
Basic characteristics of Sapphire Boule
These excellent optical, mechanical, thermal, chemical and electrical properties determine its important position and role in the military and civilian fields.
(1) Chemical stability: Sapphire has a high degree of chemical stability and will not be corroded during most chemical reactions.
(2) Mechanical properties: Due to its high hardness and high strength, sapphire single crystal can maintain high strength, wear resistance and high stability in different environments ranging from ultra-low temperature to 1500 ℃ high temperature. At the same time, it is the oxide crystal material with the highest hardness currently known, second only to diamond up to 9 on the Mohs scale.
(3) Optical transmittance: The penetration wavelength range of sapphire single crystal material is 0.19nm-5.5nm, coupled with its excellent chemical stability, abrasion resistance, high hardness and high temperature resistance, make the windows made of sapphire and Sensor optical parts are widely used in high vacuum systems, high temperature furnaces and other harsh environments.
(4) Thermodynamic properties: The melting point of about 2050°C, coupled with superior chemical, mechanical and optical properties, make sapphire crystals widely used in many harsh processing environments.
(5) Wear resistance: Because of its high hardness and transparency, sapphire crystals are often used to make wear-resistant windows or other precision mechanical parts.
(6) Dielectric properties: dielectric insulation and constant dielectric constant.
(7) Sapphire also has high tensile strength, erosion resistance, thermal conductivity, and remarkable thermal shock resistance.
Application of Sapphire Crystal
Sapphire has the best overall performance and has become the most widely used oxide substrate material, mainly used as a semiconductor thin film substrate material, large-scale integrated circuit substrate, etc.
Sapphire crystals are also excellent window materials for infrared military devices, missiles, submarines, satellite space technology, detection and high-power lasers (lasers), high-quality optical materials, wear-resistant bearing materials, etc., especially in missile fairings, Submarine windows and atomic clocks play an irreplaceable role in military products.
In other civilian applications, sapphire can also be used as transparent electronic materials, lamps and windows, semiconductor wafer carrying devices, thermal insulators, thermocouples, ultraviolet and infrared optical windows, and gravity wave detection instruments.
FQA
1. Are you a trading company or factory?
We are a professional factory of sapphire products, also a trading company .
2.Can you do customized products?
Yes, we specialized in customized production or OEM work.
CAD,3D drawing are needed.
3.Could you provide samples?
Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.
4.What’s the delivery time?
It depends on the type of products and the quality.
For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.
5.How about the payment?
T/T payment is prefered.
6.How about the delivery?
Mostly by air, like DHL, Fedex.