<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>ZrO2-Y2O3-Al2O3 nanocrystalline powders with different grain sizes have been synthesized using a chemical coprecipitation method. Nano-powders were compacted uniaxially and densified in a vacuum hot-pressing furnace. Density, pore size distribution, grain size and composition of the composites were determined by various techniques, including BET gas absorption, field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). It has been shown that the porosity, grain and pore size of the ceramics can be controlled by the initial powder size and sintering temperature. Fully densified ceramics with narrow grain size distribution in the range of 100 ∼ 500 nm could be obtained.</p></abstract>

ZrO2-Y2O3-Al2O3 nanocrystalline powders with different grain sizes have been synthesized using a chemical coprecipitation method. Nano-powders were compacted uniaxially and densified in a vacuum hot-pressing furnace. Density, pore size distribution, grain size and composition of the composites were determined by various techniques, including BET gas absorption, field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). It has been shown that the porosity, grain and pore size of the ceramics can be controlled by the initial powder size and sintering temperature. Fully densified ceramics with narrow grain size distribution in the range of 100 ∼ 500 nm could be obtained.

Preparation of crystal-controlled Y-TZP/Al2O3 nanocomposites

State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China

Graduate School of Chinese Academy of Sciences, Beijing, China

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Preparation of crystal-controlled Y-TZP/Al2O3 nanocomposites"}

ZrO2-Y2O3-Al2O3 nanocrystalline powders with different grain sizes have been synthesized using a chemical coprecipitation method. Nano-powders were compacted...

Preparation of crystal-controlled Y-TZP/Al2O3 nanocomposites

Online veröffentlicht: 14. Dez. 2012

Seitenbereich: 348 - 354

DOI: https://doi.org/10.2478/s13536-012-0056-6

Schlüsselwörter
ZrO2-Y2O3-Al2O3, hot-pressing, crystal-controlled nanocomposites

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Preparation of crystal-controlled Y-TZP/Al2O3 nanocomposites

Online veröffentlicht: 14. Dez. 2012

Seitenbereich: 348 - 354

DOI: https://doi.org/10.2478/s13536-012-0056-6

SchlüsselwörterZrO2-Y2O3-Al2O3, hot-pressing, crystal-controlled nanocomposites

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
ZrO2-Y2O3-Al2O3, hot-pressing, crystal-controlled nanocomposites