ZIRCONIA TOUGHENED ALUMINA (ZTA)

ZTA is often used in wear applications as an intermediate solution between alumina and zirconia. It offers an increased fracture toughness over alumina with a material cost less than that of zirconia.

ZTA (Zirconia Toughened Alumina) is used in mechanical applications. It is considerably higher in strength and toughness than Alumina. This is a result of the stress-induced transformation toughening achieved by incorporating fine Zirconia particles uniformly throughout the Alumina. Typical Zirconia content is between 10% and 20%. As a result, ZTA is more expensive than Alumina but offers increased component life and performance.

Characteristics:

• Excellent strength
• Excellent toughness
• Excellent wear resistance
• High temperature stability
• Corrosion resistance

Applications:

• Pump components
• Bearings
• Joint implants
• Bushings
• Cutting tool inserts
• Valve seats
• Wear components
• Biocompatible devices

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