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Sapphire Crystal | Al2O3 Crystal

HM2811

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Sapphire (Al2O3) Crystal is a high-performance material with exceptional hardness, thermal stability, and optical transparency. It is widely used in optics, electronics, and laser systems. Heeger Materials (HM) provides high-quality Sapphire Crystals for advanced scientific and industrial applications.

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Data sheet

Density3.98 g/cm3
MaterialsAI2O3
Melting Piont2040 ℃

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Sapphire (Al2O3) Crystal is a versatile material with exceptional hardness, thermal stability, and broad optical transparency from UV to IR. Due to its durability and scratch resistance, Sapphire crystal is widely used in optical windows, lenses, and substrates for LEDs and laser systems. Sapphire crystals are also ideal for high-temperature and harsh environment applications, including semiconductor wafers and protective covers. HM provides high-quality Sapphire Crystals, ensuring reliability and performance for cutting-edge technologies.

Sapphire Crystal | Al2O3 Crystal

Sapphire Crystal Properties

Crystal System

Hexagonal

Unit Cell Constants

a=4.748Å, c=12.97Å

Density

3.98 g/cm³

Melting Point

2040 ℃

Mohs Hardness

9

Thermal Expansion Coefficient

7.5 x 10⁻⁶ /℃

Thermal Conductivity (cal/cm·s·°C)

⊥c

 //c

23℃ 0.055

26℃ 0.060

77℃ 0.040

70℃ 0.041

Dielectric Constant

~9.4 @300K (A axis) <br> ~11.58 @ 300K (C axis)

Sapphire Crystal Specifications

Crystal Orientation

A-plane

<11-20>

2.379A

R-plane

<1-102>

1.740A

M-plane

<10-10>

1.375A

C-plane

<0001>

2.165A

Orientation Tolerance

±0.5°

Standard Dimensions & Tolerances

10×3, 10×5, 10×10, 15×15, 20×15, 20×20

Standard Thickness

0.5mm, 1.0mm

Polishing

Single-sided or double-sided

Surface Roughness

Ra < 5Å (5×5μm)

Sapphire Crystal Applications

  • Optical Windows: Employed in high-durability windows for lasers, cameras, and sensors due to its scratch resistance and transparency.
  • LED Substrates: Used as substrates for LED and semiconductor devices for their thermal stability and electrical insulation.
  • Laser Components: Applied in laser systems as lenses, mirrors, and output couplers for their high optical performance.
  • Watch Crystals: Integrated into luxury watches and protective covers for its hardness and clarity.
  • Aerospace and Defense: Utilized in harsh environment applications, such as missile domes and sensor windows, for its durability and thermal resistance.

Sapphire Crystal Packing And Shipping

Sapphire (Al2O3) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.

Sapphire Crystal | Al2O3 Crystal Packing

Where to Buy Sapphire Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Infrared Crystals products including Sapphire (Al2O3) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors. 

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