Aluminum Nitride Disc

Product

Alumina Ceramics-T

Alumina Ceramics: Alumina Ceramic Tube

Alumina Ceramic Rod

Alumina Ceramic Substrates

Alumina Ceramic Disc

Alumina Ceramic Plate

Alumina Ceramic Roller

Alumina Ceramic Crucible

Alumina Ceramic Ring

Alumina Ceramic Part

Silicon Carbide Ceramics: RBSiC

SSiC

R-SiC

Aluminum Nitride Ceramics: Aluminum Nitride Substrates

Aluminum Nitride Tube

Aluminum Nitride Plate

Aluminum Nitride Disc

Aluminum Nitride Part

Boron Nitride Ceramics (BN): Boron Nitride Tube

Boron Nitride Plate

Boron Nitride Ring

Boron Nitride Nozzle

Boron Nitride Crucible

Boron Nitride Part

Aluminum Nitride Disc

Aluminum nitride disc is a type of ceramic disc made from aluminum nitride (AlN) material. Aluminum nitride is a high-performance ceramic material with excellent thermal conductivity, electrical insulation properties, and high mechanical strength. Aluminum nitride discs are often used in electronic applications where high thermal conductivity and electrical insulation are required.

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Product Description

Features & Benefits

High thermal conductivity
Excellent electrical insulation
High mechanical strength
Low thermal expansion coefficient
High temperature stability
Chemical resistance

Markets & Applications

Electronics industry: aluminum nitride discs are commonly used in electronic components such as substrates, power modules, and heat sinks due to their excellent thermal conductivity and electrical insulation properties.
Aerospace industry: aluminum nitride discs are also used in aerospace applications due to their high strength and high temperature stability.
Medical industry: aluminum nitride discs can be used in medical devices and implants due to their biocompatibility and chemical resistance properties.
Other industries: aluminum nitride discs can also be used in industries such as automotive, energy, and telecommunications for various applications that require high thermal conductivity and electrical insulation.

Property Index of ALN Aluminum Nitride ceramics
Property Sort	Characteristic	Unit	AN170	AN200	AN220
Basic Properties	Appearance/color	—	Gray	Gray	Beige
	Water absorption	%	0	0	0
	Volume density	g/cm3	≥3.30	≥3.30	≥3.26
	Surface roughness Ra	μm	0.1~0.6	0.1~0.6	0.1~0.6
	Camber	(length ‰)	≤2‰	≤2‰	≤2‰
Thermal Properties	Thermal conductivity (20-30℃)	W/m.k	≥170	≥200	≥220
	Coefficient of Thermal expansivity (20℃~300℃)	×10-6/℃	4.4	4.6	4.5
	Coefficient of Thermal expansivity(40℃~800℃)	×10-6/℃	5.2	5.2	5.2
Mechanical Properties	Flexural/Bending strength	MPa	≥420	≥300	≥200
	Modulus of elasticity	GPa	320	310	310
	Moh''s hardness	-	8	8	8
Electrical properties	Dielectric constant (1MHz 25℃)	-	8.9	8.6	8.5
	(1MHz 25℃) Dielectric loss	×10^-4	2.8	2	2
	Dielectric strength	KV/mm	≥17	≥16	≥15
	Volume resistivity	Ω.cm	≥10¹⁴	≥10¹⁴	≥10¹³

Regular specification of AlN Aluminum Nitride substrates/plate and Aluminum Nitride wafer

Thickness(mm)

L*W( mm)

0.381

2″* 2″ 50.8mm*50.8mm

3″*3″ 76.2mm*76.2mm

4″* 4″ 101.6mm*101.6mm

4.5″* 4.5″ 114.3mm*114.3mm

127*127mm
138*190mm

0.5

0.635

1.5

Thickness(mm)

Diameter(mm)

Φ16

Φ19

Φ20

Φ26

Φ30

Φ35

Φ40

Φ45

Φ50

Φ52

Φ60

Φ75

Φ80

Φ200

1.2

1.5

2.5

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Other dimension and thickness which not listed are available upon requests.