ZTA1867 Zirconium dioxide hardened aluminium oxide (ZTA) micropowder

Zirconia Toughened Alumina (ZTA) Micro Powder Description

Zirconia Toughened Alumina (ZTA) is a technical ceramic material containing 10–20% ZrO₂ in alumina. When pure ZrO₂ is added to aluminium oxide, the resulting particles form a ZrO₂‐hardened aluminium oxide ceramic. The addition of the zirconium dioxide particles improves the toughness and fracture resistance, provided that the content is accurately controlled. Tests indicate that ZTA ceramic exhibits greater strength and improved toughness compared to standard aluminium oxide ceramic. Given the high cost of pure zirconium dioxide, ZTA with enhanced toughness is a viable option for certain applications.

Zirconia Toughened Alumina (ZTA) Micro Powder Applications

Printed circuit boards;
Valve seals;
Bushings;
Components of fluid systems, etc.

Zirconia Toughened Alumina (ZTA) Micro Powder Specification

Zirconia Toughened Alumina (ZTA) Micro Powder Packaging

Our Zirconia Toughened Alumina (ZTA) Micro Powder is packaged with care to prevent damage during storage and transit, thereby ensuring that the product retains its measured quality.

Frequently Asked Questions about Zirconia Toughened Alumina (ZTA) Micro Powder

Q1: Why is ZTA powder preferred for applications requiring high strength and high toughness?

A: ZTA is preferred because the addition of zirconium dioxide particles to aluminium oxide increases its toughness and fracture resistance without reducing hardness and wear resistance. Consequently, this material meets the demands for applications where mechanical reliability is a critical factor.

Q2: What particle sizes are available for ZTA powder?

A: ZTA powder is available in a variety of particle sizes, typically from 1 μm to 100 μm for the zirconium dioxide particles, depending on the specific application requirements.

Q3: How does the particle size of zirconium dioxide affect the performance of ZTA?

A: Smaller zirconium dioxide particles result in improved dispersion and facilitate an effective toughening of the aluminium oxide matrix. Consequently, the mechanical properties, including both toughness and tensile strength, are enhanced. The optimal particle size is determined by the precise requirements of the application.