ZTA (Zirconia Toughened Alumina)

Description

ZTA is an advanced composite ceramic material which is characterised by high strength, high hardness, wear resistance and high fracture toughness. ZTA ceramics are more cost effective.

Features

High Strength
High hardness
Creep resistance
High fracture toughness
Wear-resistant
Corrosion resistant
Good insulation

Applications

Abrasion resistant sheet
Ball
Rods
Plungers
Valve
Tube
Seals
Engine parts
Bushings
Other applications

GW Ceramics provides customized services

Properties

Mechanical Properties

	Colour	Density (g/cm³)	Mohs Hardness	Compressive Strength (Mpa)	Flexural Strength (Mpa)	Young’s modulus （GPa）	Fracture Toughness (MPa·m^1/2)	Poisson’s Ratio
10% ZTA	white	3.9-4.1	9	1800-2900	400-900	400	4-7	–

Thermal Properties

	Coefficient of Thermal Expansion (40-400°C) (× 10-6/℃)	Thermal Shock Resistance (℃)	Thermal Conductivity (W/m·K)	Maximum Operating Temperature (without load) (℃)
10% ZTA	8-9	225-500	17-27	1500

Electrical Properties

	Dielectric Constant (1MHz)	Dielectric Strength (kV/mm)	Volume Resistivity (25°C) (Ω·cm)
10% ZTA	8-9	9	＞10¹³

*The data in the charts show the properties of the ceramic materials.
*The above figures do not represent any commitment to the customer’s product.
*Due to differences in production processes and product forms, the final property data for ceramics may vary.