Paper Title:
Preparation of Zirconia-Toughened Alumina Ceramics through the Dispersal Basic Carbonate Precursors
  Abstract

Using NH4HCO3 solution as precipitant, the ultrafine 3Y-ZrO2/Al2O3 precursors were prepared by the liquid-phase precipitation method. The well-dispersible ZrO2/Al2O3 composite nanopowders with particle size 10nm were obtained by calcining the precursor at 1000°C. The XRD patterns show no γ-Al2O3 and θ-Al2O3 formed during calcination. The powders have excellent sinterability and the relative density of specimen is up to 99% after sintering the green compacts at 1550°C. Microstructural analysis of the sintered bodies reveals the uniform distribution of the zirconia grains in the alumina matrix.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1137-1140
DOI
10.4028/www.scientific.net/KEM.336-338.1137
Citation
J. Q. Wang, Q. H. Yu, S. H. Zheng, Z. Wang, "Preparation of Zirconia-Toughened Alumina Ceramics through the Dispersal Basic Carbonate Precursors", Key Engineering Materials, Vols. 336-338, pp. 1137-1140, 2007
Online since
April 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Sarut Teerasoradech, Karn Serivalsatit
Chapter 2: Ceramic-Based Materials
Abstract:Magnesium aluminate spinel (MgAl2O4) or spinel ceramics have been widely used in engineering fields due to its...
159
Authors: Piyalak Ngernchuklin, Arjin Boonruang, Saengdoen Daungdaw, Nestchanok Yongpraderm
Abstract:Nowadays, the concept of harvesting energy from the environment, for example, thermal, wind, sun, vibration and human activities is much of...
218