mirage

Spark plasma reaction sintering of ZrO2-mullite composites from plasma spheroidized zircon/alumina powders

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Spark plasma reaction sintering of ZrO2-mullite composites from plasma spheroidized zircon/alumina powders

Show full item record

Title: Spark plasma reaction sintering of ZrO2-mullite composites from plasma spheroidized zircon/alumina powders
Author: Khor, Khiam Aik; Yu, L. G.; Li, Y.; Dong, Zhili; Munir, Z. A.
Copyright year: 2003
Abstract: Mullite-zirconia ceramic composites are prepared by reaction sintering of plasma spheroidized (PS) zircon-alumina powders in a spark plasma sintering (SPS) system at 1000, 1100, 1200 and 1300 °C with duration of 10 and 30 min. At SPS temperature of 1000 °C, evidence of zircon decomposition is detected, while at 1200 °C, mullite formation dominates the process, resulting in significant increases in microhardness, Young’s modulus and fracture toughness values. At SPS temperature of 1300 °C, due to recrystallization, rapid grain growth, and intergranular micro cracking, there is a slight decrease of microhardness and Young’s modulus values. Yet, fracture toughness as high as 11.2±1.1 MPa m1/2 is obtained by the indentation technique. The results indicate that with optimized sintering parameters, a combination of PS and SPS is effective in preparing high performance mullite/ZrO2 composites from zircon/alumina mixtures at a relatively low reaction sintering temperature.
Subject: DRNTU::Engineering::Materials
Type: Journal Article
Series/ Journal Title: Materials science and engineering A
School: School of Mechanical and Aerospace Engineering
Rights: © 2003 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Materials Science and Engineering A, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/S0921-5093(02)00151-X]
Version: Accepted version

Files in this item

Files Size Format View
77.Spark plasma reaction sintering of ZrO2_2.pdf 774.4Kb PDF View/Open
   

DOI Query

- Get published version (via Digital Object Identifier)
   

This item appears in the following Collection(s)

Show full item record

Statistics

Total views

All Items Views
Spark plasma reaction sintering of ZrO2-mullite composites from plasma spheroidized zircon/alumina powders 390

Total downloads

All Bitstreams Views
77.Spark plasma reaction sintering of ZrO2_2.pdf 406
77.Spark plasma reaction sintering of ZrO2.pdf 1

Top country downloads

Country Code Views
China 95
United States of America 89
Algeria 42
Singapore 40
Iran 18

Top city downloads

city Views
Mountain View 67
Beijing 61
Singapore 39
Sétif 20
Mumbai 9