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Effect of sol concentration on the microstructures of barium hafnate titanate nanopowders

  • Chunlin Fu , Huan Liao , Wei Cai , Xiaoling Deng and Gang Chen
Published/Copyright: May 15, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 11

Abstract

The properties of barium hafnate titanate are possibly better than those of barium zirconium titanate. In general nanoscale materials possess unique electrical, magnetic, and optical properties. Barium hafnate titanate powders were prepared via sol-gel processing at different sol concentrations. X-ray diffraction and transmission electron microscopy characterization were performed. The X-ray diffraction spectra suggest that a higher calcination temperature is necessary for the powder samples prepared at lower sol concentrations to obtain a pure phase. The X-ray diffraction and transmission electron microscopy results both reveal that the average powder size decreases with the increasing of sol concentration, which may be due to the change in viscosity.

Keywords: Barium titanate hafnate; Nanopowder; Ferroelectric; Sol-gel
∗ Correspondence address Prof. Chunlin Fu, Huxi University TownSchool of Metallurgical and Materials EngineeringChongqing University of Science and TechnologyChongqing 401331, PR China, Tel.: +862365023479, Fax: +862365023706, E-mail:

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Received: 2011-11-4
Accepted: 2012-6-20
Published Online: 2013-05-15
Published in Print: 2012-11-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110822
Keywords for this article
Barium titanate hafnate; Nanopowder; Ferroelectric; Sol-gel

Articles in the same Issue

  1. Contents
  2. Contents
  3. Award/Preisverleihung
  4. The Werner-Köster-Preis 2011
  5. Original Contributions
  6. Ostwald ripening in Al–Li alloys: A test of theory
  7. The Mg–C phase equilibria and their thermodynamic basis
  8. Experimental and thermodynamic study of nickel (30 wt.%Cr) – based alloys containing between 2.5 and 5.0 wt.% carbon
  9. Thermodynamic description of the system Cu–Sn–P experimental and numerical investigation
  10. Severe tempering of bainite generated at low transformation temperatures
  11. A comparative study of microstructure, compressive, and fracture properties of Ti3Al-based intermetallics produced via powder metallurgy, and melting and casting processes
  12. Rod-like structure and microhardness during directional solidification of Sn-1wt.%Cu eutectic alloy
  13. Properties of Si3N4/SiC composites produced via spark plasma sintering
  14. Formation of Al67Cu23Fe10 quasicrystals by microwave heating
  15. Magnetoelectric characteristics of cobalt-iron alloy–lead zirconate titanate bilayer planar structures
  16. On the texture and grain growth in hot-deformed and annealed WE54 alloy
  17. Numerical study of equal-channel angular pressing based on the element-free Galerkin method
  18. Dynamic behavior of staggered triangular honeycomb cores under in-plane crushing loadings
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  23. People
  24. Horst Vehoff 65 years
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  26. DGM News
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