Synthesis of 8 %mol yttria-stabilized zirconia powders by mechanochemical processing of ZrOCl2.8H2O and YCl3.6H 20 with Li2CO3

Kanatip Kumproa, Apinon Nuntiya, Qiwu Zhang, Fumio Saito

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

Abstract

Mechanochemical processing of zirconium oxychloride and yttrium chloride precursors with lithium carbonate has been used to synthesis ultrafine powders of yttria-stabilized zirconia. The purposes of this work are to synthesis 8% mol yttria-stabilized zirconia powder via a mechanochemical process and to study the effect of LiCl as an inert diluent on agglomerate size of ultrafine powders. 8% mol yttria-stabilized zirconia powder was prepared from zirconium oxychloride and 8 %mol yttrium chloride precursors with lithium carbonate by using planetary ball mill and heat treatment. Chemical reaction between reactant mixtures occurs during post-milling heat treatment at low temperature to form composite powder. The products of this reaction consist of ultrafine powders embedded within LiCl as soluble salt by-product. The ultrafine powder is then recovered by removing the salt through a washing procedure. The powders were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and particle size analysis. The results indicated that 8% mol yttria-stabilized zirconia crystal structure depends on post-milling heat treatment temperatures. The structure of yttria-stabilized zirconia is transformed to a tetragonal form at 400 °C and 500 °C. Furthermore, it tends to form a cubic structure at 600 °C. However, agglomerate size of ultrafine powders also depends on the concentration of lithium chloride as an inert diluent and the washing procedure. Primary particle size of ultrafine powders is 30 nm.

Original languageEnglish
Title of host publicationFunctionalized and Sensing Materials
Pages344-349
Number of pages6
DOIs
Publication statusPublished - 2010 Feb 5
EventInternational Conference on Functionalized and Sensing Materials, FuSeM 2009 - Bangkok, Thailand
Duration: 2009 Dec 72009 Dec 9

Publication series

NameAdvanced Materials Research
Volume93-94
ISSN (Print)1022-6680

Other

OtherInternational Conference on Functionalized and Sensing Materials, FuSeM 2009
CountryThailand
CityBangkok
Period09/12/709/12/9

Keywords

  • Inert diluent
  • Mechanochemical process
  • Planetary ball mill
  • X-ray diffraction
  • Yttria-stabilized zirconia

ASJC Scopus subject areas

  • Engineering(all)

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    Kumproa, K., Nuntiya, A., Zhang, Q., & Saito, F. (2010). Synthesis of 8 %mol yttria-stabilized zirconia powders by mechanochemical processing of ZrOCl2.8H2O and YCl3.6H 20 with Li2CO3. In Functionalized and Sensing Materials (pp. 344-349). (Advanced Materials Research; Vol. 93-94). https://doi.org/10.4028/www.scientific.net/AMR.93-94.344