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Journal of Materials Science

, Volume 42, Issue 3, pp 983–988 | Cite as

Preparation and characterization of carbon-coated ZnO and CaO powders by pyrolysis of PVA

  • Burak ÖzkalEmail author
  • Wei Jiang
  • Osamu Yamamoto
  • Kiyoshi Fuda
  • Zenbe-e Nakagawa
Article
First Online:

Abstract

Carbon-coated ZnO and CaO powders were prepared by Poly(vinyl alcohol) (PVA) pyrolysis at 700 °C in inert atmosphere and characterized for their potential utilization in the field of antibacterial ceramics. No peaks corresponding to carbon were detected after XRD measurements of as-coated powders; that is, carbon coating is amorphous. Certain increase in specific surface area was observed after coating in all powders. Based on additional characterizations supported by SEM observations and particle size distributions, it is concluded that the formation of nanoporous structure of coated carbon layer resulted in an increase in the surface area. Some agglomeration also observed after treating powders that decreased with increasing polymerization degree of PVA used as a carbon precursor.

Keywords

Pyrolysis Carbon Layer Ceramic Powder Polymerization Degree Coating Operation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Burak Özkal
    • 1
    • 2
    Email author
  • Wei Jiang
    • 1
  • Osamu Yamamoto
    • 1
  • Kiyoshi Fuda
    • 1
  • Zenbe-e Nakagawa
    • 1
  1. 1.Research Institute of Materials and Resources, Faculty of Engineering and Resource ScienceAkita UniversityAkitaJapan
  2. 2.Chemical and Metallurgical Faculty, Metallurgical and Materials Engineering DepartmentIstanbul Technical UniversityMaslakTurkey

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