Accelerated formation of BaTiO3ceramics with mechanochemical processing in different liquids

Akbas H. Z., Aydin Z., Guder F., Turgut S.

Journal of Alloys and Compounds, vol.699, pp.87-91, 2017 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 699
  • Publication Date: 2017
  • Doi Number: 10.1016/j.jallcom.2016.12.369
  • Journal Name: Journal of Alloys and Compounds
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.87-91
  • Keywords: Barium titanate, Ceramics, Disproportionation, Grain size
  • Hatay Mustafa Kemal University Affiliated: Yes

Abstract

BaTiO3powders were synthesized from BaCO3and TiO2with mechanochemical processing using a shaker by solid-state reactions in distilled water, methanol, and acetone. Decomposition of BaCO3, disproportionation of the liquids and hydrous titanium oxide are led to formation of the BaTiO3ceramics. The liquids are accelerated the formation of BaTiO3dependent on the O[sbnd]H bands of the liquids structure. More O[sbnd]H bands increased the density of the calcined powders, and improved the microstructure of sintered BaTiO3ceramics. The density of the calcined powders is 4.67, 3.66, and 3.49 g/cm3for the water, methanol, and acetone respectively. X-ray Diffraction (XRD) and Raman spectroscopy analysis were verified the structure of BaTiO3. The differences of the microstructure are clearly shown that the micrographs of sintered pellets by Scanning Electron Microscopy (SEM). Depending on the liquid, the process led directly to normal and abnormal grain growth of the sintered samples.