ZIRCONIA TOUGHENED ALUMINA (ZTA) Overview:
 

Zirconia toughened alumina (ZTA) is a specialized alumina designed for high thermal shock resistance and increased toughness 。

 

Features:

High flexural strength, up to 2 times that of Al2O3
Higher reflectivity than Al2O3 and AlN
Good reliability with thermal shock and thermal cycling
Excellent surface quality

 

Applications:

High power module (IGBT… etc.)
Substrates for LED package
Metallization substrate for DBC, DPC process
Substrates for automotive

 

Main Size:

190 x 138 x 0.32 mm
Customization available

ZIRCONIA TOUGHENED ALUMINA (ZTA)characterstics:
 

 
Item Unit ZTA

密度(Sintered density)

g/cm3

4

 

抗折強度(Flexural strength)

Mpa

600

 

楊氏係數(Young's Modulus)

Gpa

--

 

熱膨脹係數(Thermal expansion coefficient)

-1

7×10-6

介電強度(Dielectric strength)

kV/mm

>14

 

介電常數(Dielectric constant)

(1MHz)

10.7

體阻抗(Volume Resistivity) Ω.cm >1014  
熱傳導率(Thermal conductivity) W/m.K 24