Do you have any questions? Email Us [email protected]

PBN Crucibles for Precision Application

Pyrolytic Boron Nitride Crucible can withstand high temperatures in a high vacuum environment. It has excellent thermal conductivity, corrosion resistance, and electrical resistance.

CM4068 Sapphire Tube, Al2O3

Catalog No. CM4068
Material Sapphire (Al2O3)
Crystal System Hexagonal
Density 3.97 g/cm3
Size Customized

Datasheet

Inquiry

CM4068 Sapphire Tube, Al2O3

Sapphire Tube Descriptions

Sapphire Tube is a transparent single-crystal alumina material, which has excellent chemical stability and excellent mechanical, thermal, and optical properties. As raw materials, its performance is much better than glass, quartz, and other mass-produced transparent materials.

Sapphire Tube Specifications

Item		Unit		Typical Values
Crystal Structure		-		Hexagonal
Density		g/cm³		3.97
Physical Properties
Poisson's Ratio		-		0.18～0.29
Vickers Hardness		Gpa		22.5
Young's Modulus		Gpa		470
Flexural Strength		MPa		690
Tensile Strength		Mpa		2250
Compressive Strength		MPa		2940
The Thermodynamic Property
Melting Point		ºC		2053
Thermal Conductivity at 20℃		W/m•k		42
CLTE 40-400℃		10^-6/℃		7.0
Specific Heat Capacity		J/(g・K)		0.75
Electrical Property
Dielectric Strength		MV/m		48
Dielectric Constant at 20℃		MHz		9.3
Dielectric Loss at 20℃		MHz		<1.4x10^-4
Volume Resistivity at 20℃		Ω•cm		>1.0x10¹⁴
Volume Resistivity at 500℃		Ω•cm		1.0x10¹¹
Index of Re ection
589nm	No=1.768		Ne=1.760

Sapphire Tube Features

-High Strength, High Rigidity, High Anti-Abrasion, High Anti-Heat, High AntiCorrosion Characteristics, and High Anti-Plasma Characteristics.

Because of these characteristics, Single Crystal Sapphire is widely used for precision mechanical parts.

-Stable Dielectric Constant, Very Low Dielectric Loss, Good Electrical Insulation.

Single Crystal Sapphire is used as a material for substrates in super-high frequency regions. It is also used as an insulation material and microwave window. Single Crystal Sapphire has become indispensable in the Electronics Industries.

-Excellent Light Transmission.

Single Crystal Sapphire is used for various kinds of vacuum equipment, windows in reaction furnaces, scanner windows, and caps for optical communication due to its excellent mechanical characteristics and heat resistance.

-Good Thermal Conductivity and High Heat Resistance.

Excellent thermal conductivity at low temperatures allows Single Crystal Sapphire as a transparent material to be used in many diverse fields requiring thermal conduction and heat radiation.

Sapphire Tube Applications

(1)High Brightness LED

(2)HB-LED Semiconductor, Piezoelectric Semiconductor, Superconductor, Thin Film Substrate.

(3)MR Sensor, Precision Resistor

(4)Optical Devices

(5) Thin Film HICO

Single Crystal Sapphire is a widely used substrate material for blue, green, ultraviolet, and white LEDs. It has excellent features as a base substrate for GaN deposition and great mass productivity. In addition, it can meet future larger-size demand.

Single Crystal Sapphire is used as a base substrate in thin film deposition because its lattice alignment matches a variety of semiconductor materials combined with excellent thermal and chemical stability.

Sapphire Tube Packaging

ACM’s Sapphire Tube is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.