Description of Zirconia Toughened Alumina (ZTA) Nano Powder
ZTA is a technical ceramic material that contains 10‐20% ZrO₂ in alumina. When pure ZrO₂ is added to aluminium oxide and the particles form ZrO₂‐hardened alumina, the toughness increases significantly given appropriate proportions. It has been documented that ZTA ceramics exhibit increased strength and toughness compared with conventional alumina ceramics. Due to the high cost of pure zirconium dioxide, ZTA is considered a cost‐efficient option for applications requiring enhanced toughness.
Applications of Zirconia Toughened Alumina (ZTA) Nano Powder
1. Manufacture of advanced ceramics: ZTA nanopowder is used in the production of ceramics. It improves mechanical strength, toughness and wear resistance.
2. Wear‐resistant coatings: The nanoscale properties of ZTA nanopowder render it suitable for wear‐resistant coatings. These coatings are applied on machinery, tools and surfaces that experience high abrasion, thereby extending service life.
3. Biomedical engineering: The biocompatibility and mechanical strength of ZTA nanopowder make it valuable for biomedical applications. It is employed in the manufacture of implants, prostheses and dental components.
4. Advanced electronics: Given that electronic components require elevated performance, ZTA nanopowder is used in the production of substrates, insulators and parts for electronic devices.
Specification of Zirconia Toughened Alumina (ZTA) Nanopowder
Water absorption
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Insoluble in water
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Density
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4.30 g/cm³
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Hardness
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82 MPa
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Tensile strength
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350 MPa
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Thermal conductivity
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24
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Maximum operating temperature
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1500°C
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Insulation resistance at 25°C
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>1014
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Zirconia Toughened Alumina (ZTA) Nanopowder Packaging
Our Zirconia Toughened Alumina (ZTA) Nano Powder is packaged to prevent damage during storage and transport, thereby maintaining product quality in accordance with original specifications.
Frequently Asked Questions about Zirconia Toughened Alumina (ZTA) Nanopowder
Q1: Why is ZTA preferred for applications requiring high strength and high toughness?
A: ZTA is preferred because the addition of zirconium dioxide particles to aluminium oxide considerably improves its toughness and fracture resistance without compromising hardness or wear resistance. This renders ZTA suitable for applications where mechanical reliability is essential.
F2: What particle sizes are available for ZTA nanopowder?
A: ZTA nanopowder is available in a range of particle sizes, typically from 10 nm to 100 nm for the zirconium dioxide particles. The specific size is selected in accordance with application requirements.
F3: How does the particle size of zirconium dioxide affect the performance of ZTA?
A: Smaller zirconium dioxide particle sizes ensure better dispersion within the alumina matrix, thereby increasing the effectiveness of the toughening mechanism. Consequently, mechanical properties such as toughness and strength are improved. The optimal particle size is determined by the application’s specific requirements.