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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.

CM4066 Sapphire Disc

Catalog No. CM4066
Material Sapphire (Al2O3)
Density 3.97 g/cm3
Size Customized
Crystal System Hexagonal

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CM4066 Sapphire Disc

Sapphire Disc Descriptions

Sapphire Disc, crafted from a transparent single-crystal alumina material, inherits the exceptional chemical stability and remarkable mechanical, thermal, and optical properties inherent to sapphire. Its superiority over commonly used materials like glass and quartz lies in its raw material excellence, making Sapphire Disc an optimal choice for precision applications in various industries.

Sapphire Disc 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 Reﬂection
589nm	No=1.768		Ne=1.760

Sapphire Disc Features

Mechanical Excellence: Single Crystal Sapphire discs exhibit high strength, rigidity, and exceptional resistance to abrasion, heat, corrosion, and plasma, making them a prime choice for precision mechanical parts.

Electronics Essential: With a stable dielectric constant, minimal loss, and superior electrical insulation, Single Crystal Sapphire serves as a crucial material for substrates in super-high frequency regions. Its applications extend to insulation and microwave windows, playing an indispensable role in the Electronics Industries.

Optical Versatility: Renowned for excellent light transmission, Single Crystal Sapphire discs find utility in various vacuum equipment, reaction furnace windows, scanners, and optical communication caps, owing to their impressive mechanical characteristics and heat resistance.

Thermal Efficiency: Featuring good thermal conductivity at low temperatures and high heat resistance, Single Crystal Sapphire discs serve as transparent materials in diverse fields requiring efficient thermal conduction and heat radiation.

Sapphire Disc Applications

LED Substrate: Widely used for blue, green, ultraviolet, and white LEDs, Single Crystal Sapphire is an excellent base substrate for GaN deposition, ensuring high productivity and meeting future demand.

Semiconductor and Thin Film: As a base substrate in thin film deposition, Single Crystal Sapphire aligns with various semiconductor materials, offering exceptional thermal and chemical stability for applications in semiconductors, piezoelectrics, superconductors, and thin film substrates.

Sensor and Resistor Technology: Applied in MR sensors and precision resistors, Single Crystal Sapphire demonstrates versatility in various technological applications.

Optical Devices: Essential in the production of optical devices, Single Crystal Sapphire contributes to the advancement of optical technologies.

Thin Film HICO: With compatibility and stability, Single Crystal Sapphire plays a key role as a substrate in Thin Film HICO applications.

Sapphire Disc Packaging

ACM’s Sapphire Disc undergoes careful handling to minimize damage during storage and transportation, ensuring the preservation of product quality in its original condition.

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