Surface-polished synthetic sapphire rods and sapphire ingots are
precision-engineered materials made from single-crystal aluminum
oxide (Al₂O₃). Synthetic sapphire is known for its exceptional
hardness, second only to diamond, and its ability to withstand
extreme temperatures and harsh environments. The polishing process
enhances the surface quality, making it ideal for applications that
require high optical clarity and smoothness.
One of the standout features of synthetic sapphire is its high
dielectric constant, which makes it an excellent electrical
insulator. This property, combined with its mechanical strength and
chemical resistance, makes sapphire rods and ingots ideal for use
in a wide range of industries, including electronics,
optoelectronics, and aerospace.
Sapphire rods are commonly used in optical systems, lasers, and
high-precision equipment, while sapphire ingots are used as the
base material for slicing into wafers for semiconductor and LED
manufacturing. The material’s transparency to UV and infrared light
also makes it a preferred choice for windows and lenses in
high-performance optical devices. Overall, surface-polished
synthetic sapphire components are critical in applications where
durability, precision, and insulating properties are required.
Surface: LP/ polished
SD:60/40 ,or40/20
Roudness:1um
| Thermal Properties |
| Thermal Coefficient of Expansion | (0/300°C): 45-53 X 10 -7/°C |
| Softening Point | 2040°C / 3700 °F |
| Mechanical Properties |
| Density | 3.97 g/cm3 |
| Knoop Hardness | 1525-2000 Kg/mm2 |
| Young's Modulus | 50-55 X 106 psi / 345 GPa |
| Poisson's Ratio | 0.28-0.33 |
| Optical Properties |
| Refractive Index | 1.768 |
| Electrical Properties |
| Dielectric Constant | Avg. 9.3-11.5 |
| Dielectric Strength | 4.8 X 105 v/cm |
Advantage from Comprison with other optical glass
1- Thinner and Stronger than Standard Glass Windows
2- Transmits Wavelengths Ranging From UV to Mid-Infrared
3- Features Extreme Chemical Resistance
4- Extreme surface hardness, high thermal conductivity,
high dielectric constant and resistance
4. About ZMKJ Our Factory
ZMKJ locates in the city of Shanghai, Which is the best city of
China, and our factory is founded in Wuxi
city in 2014.We specialize in processing a varity of materials into wafers,
substrates and custiomized
optical glass parts.components widely used in electronics, optics,
optoelectronics and many other fields.
We also have been working closely with many domestic and oversea
universities, research institutions
and companies, provide customized products and services for their
R&D projects.
It's our vision to maintaining a good relationship of cooperation with our all
customers by our good reputatiaons.
4. Our products in fact
FAQ:
Q1: Can I have samples to test?
A: Yes,we are pleased to supply samples to test and check
quality,mixed sample order is available.
Q2: Do you have any MOQ limited? A: Our MOQ: 5pcs Q3: What’s the
lead time?
A: Sample :2-3 days.Mass production: 10-30 days.
Q4: How do you ship the goods and how long does it take?
A: We usually ship goods by UPS,FEDEX,TNT by FOB. It usually takes
3-5 days to arrive.
Q5: Do you offer guarantee for your products?
A: After test them if not pass test,you can return the goods at any
time, we will re-offer you again
and also bear shipping fee.
Q6: Do you accept OEM?
A: We have our own brand-metalaser. OEM is also acceptable.
Q7:What is a sapphire rod?
A:A sapphire rod is a cylindrical form of synthetic sapphire, which
is a crystalline form of aluminum oxide (Al₂O₃). Sapphire rods are
known for their exceptional hardness, second only to diamond, and
their resistance to high temperatures, chemical corrosion, and
electrical insulation. These rods are often used in applications
that require durability and stability under extreme conditions,
such as in optics, lasers, high-temperature furnaces, and
scientific instrumentation. They can also be used in precision
machining, bearings, and medical devices due to their mechanical
strength and biocompatibility.
Would you like to know more about specific applications of sapphire
rods?
