Fabrication of Al2O3/ZrO2 micro/nano composites using powder alkoxide mixtures

W. Boonsorn, S. Watcharamaisakul, B. Golman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Al2O3/ZrO2 composites have been investigated as the bio-inert material. In the present work Al2O3/ZrO2 Micro/Nano composites were prepared by colloidal method. The effects of the concentration of zirconium propoxide and the sintering temperature were studied on the distribution of ZrO2 nano-grains in Al2O3 matrix and mechanical properties of composites. XRD patterns for all compositions showed a single phase of a-Al2O3, and the tetragonal and monoclinic ZrO2 phases. Samples sintered at 1650°C demonstrated the high bulk density with value of 86-92% of theoretical density. ZrO2 nano-grains were dispersed within Al2O3 grain and the grain boundary. The sample of the highest flexural strength of 710 MPa was synthesized using 100% Zr propoxide solution and sintered at 1650° C. The flexural strength was found to increase with increasing the concentration of Zr propoxide and sintering temperature.

Original languageEnglish
Title of host publicationKKU International Engineering Conference
PublisherTrans Tech Publications
Pages132-136
Number of pages5
ISBN (Print)9783038350903
DOIs
Publication statusPublished - Jan 1 2014
Event5th KKU International Engineering Conference 2014, KKU-IENC 2014 - Khon Kaen, Thailand
Duration: Mar 27 2014Mar 29 2014

Publication series

NameAdvanced Materials Research
Volume931-932
ISSN (Print)1022-6680

Other

Other5th KKU International Engineering Conference 2014, KKU-IENC 2014
CountryThailand
CityKhon Kaen
Period3/27/143/29/14

Keywords

  • Colloidal process
  • Micro/nano composite

ASJC Scopus subject areas

  • Engineering(all)

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