Ceramic materials

 

AlN and Al2 O3 are environmentally-friendly substrate materials to replace BeO (Beryllium oxide) for your RF resistors and terminations for high power applications.

The thermal conductivity also makes these ideal substrates for high heat components including LED's.

ceramtec
CeramTec is a global leader in the field of production and supply of advanced ceramics and engineers these materials for use in a wide variety of applications. CeramTec supplies with the current portfolio well over 10,000 different products, components and parts made of advanced ceramics, and a wide variety of ceramic materials.

96% / 99.6% Alumina
Introduction of Ceramic Materials


Curamik

While most of there products are rather small, they can have a great effect. They are the market and technology leader for ceramic substrates. These products are used almost everywhere in our highly technical 21st century world, contributing to efficient energy management.

Curamik Al2O3 HPS Si3N4 AlN  DATA SHEET

 

CoorsTek

CoorsTek develops and manufactures a great variety of technical ceramics built to withstand extremely harsh environments with outstanding performance.

AD Range
Advanced Alumina
96% / 99.6% Alumina
Durastrate

 

Typical Property Values of AlN and Al2O3

Property

AlN

Al2 O3

Dielectric constant (1 MHz @ RT)

8.9

9.8

Dielectric loss (1 MHz @ RT)

0.0001

0.0002

Electrical resistivity (Ohm-cm)

< 1014

< 1014

Thermal conductivity (W/m K)

170-190

36

Coefficient of thermal expansion (ppm/°C)

4.6

8.2

Density (g/cm3 )

3.30

2.89

Bending strength (mPa)

290

380

Hardness (knoop) (GPa)

11.8

14.1

Young's modulus (GPa)

331

372