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Nitrides

Nitrides overview

Family Overview

Nitrides are ideal for high-temperature applications. They have excellent mechanical and thermal strength due to their grain and crystal structures. 

CoorsTek Aluminum Nitride exhibits great thermal conductivity allowing rapid heat dissipation. Silicon Nitride has great toughness at high temperature, and  excellent thermal shock resistance.

  • Thermally stable
  • Electrical resistivity
  • Mechanical strength
  • Thermal shock resistance
     

Ceramics Expertise

CoorsTek engineers our nitrides to meet our customers' specifications. Our application-specific formulations combined with over a century of experience mean we can help you find the optimal ceramic material for your application.

Property Units Aluminum Nitride

AlN

Silicon Nitride

Si3N4

Flexural Strength MOR, (20°C)

MPa

300-350

640-1000

Compressive Strength, (20°C)

MPa

2000-2100

675-3800

Fracture Toughness, KIc

MPa m1/2

2.9-6.0

4.25-7.5

Hardness, Rockwell 45N

R45N

11

-

Hardness, Knoop 1000gm

GPa

-

15.0-16.0

Maximum Use Temperature

°C

800

800-1400

Coefficient of Thermal Expansion, (25-1000°C)

1 x 10-6/°C

3.5-5.6

2.9-3.7

Thermal Shock Resistance, (∆T)

°C

-

600-1150

Thermal Conductivity, (20°C)

W/m K

80.0-205.0

19.0-38.0

Dielectric Strength, (6.35mm)

ac-kV/mm

8.2-25.0

15.0-17.7

Dielectric Constant, (1 MHz)

25°C

8.5-9.1

7.7-8.3

Volume Resistivity, (25°C)

ohm-cm

1011->1014

1010->1014

The information provided on this chart is for general material property reference only.  The customer should recognize that exact properties of materials may vary according to product configuration but close control of values of most properties can be maintained, if specified. Nothing herein is provided, or is to be construed, as absolute engineering data or constituting a warranty or representation. Contact CoorsTek for cost-effective design, development and manufacturing assistance. CoorsTek has 300+ variations including various forming and firing processes, not all variants are represented in the present website.

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