Investigations on structural and electrical properties of conventional and microwave sintered BaTiO3 and Ba0.98Nd0.02TiO3 ceramics

Abstract In this article, BaTiO3 and Ba0.98Nd0.02TiO3 ceramics were prepared by high temperature conventional solid state reaction, followed by microwave sintering (MS) process separately. A comparative study on structural, morphological and electrical properties has been employed by powder X-ray diffraction (PXRD), Raman, scanning electron microscope and dielectric and ferroelectric measurements. PXRD and profile refinement analysis results revealed that tetragonal phase at room temperature. The Raman spectroscopy provided useful information on the presence of tetragonal symmetry. Surface morphology of the MS sample showed dramatic changes from scanning electron micrographs. Dielectric and ferroelectric behavior observed for MS sample.

[1]  Yu. G. Kubarev,et al.  ELECTRICAL , 2021, Data Center Handbook.

[2]  W. Hager,et al.  and s , 2019, Shallow Water Hydraulics.

[3]  C. Fu,et al.  Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics , 2018 .

[4]  K. Önel,et al.  Effect of particle size and heating rate in microwave sintering of 316L stainless steel , 2014 .

[5]  S. Priya,et al.  Local structure and piezoelectric instability in lead-free (1 − x)BaTiO3-xA(Cu1/3Nb2/3)O3 (A = Sr, Ca, Ba) solid solutions , 2014 .

[6]  S. Saravanakumar,et al.  Effect of sintering temperature on the magnetic properties and charge density distribution of nano-NiO , 2014, Chemical Papers.

[7]  W. Zhang,et al.  EFFECTS OF NEODYMIUM DOPING ON DIELECTRIC AND OPTICAL PROPERTIES OF Ba(1-x)NdxTi1.005O3 CERAMICS , 2013 .

[8]  Raghavendra Sagar,et al.  Electrical, dielectric and pyroelectric behavior of neodymium substituted barium zirconium titanate , 2012 .

[9]  N. A. Rejab,et al.  Structural characteristics and dielectric properties of neodymium doped barium titanate , 2011 .

[10]  C. Fu,et al.  Dielectric properties, microstructure and diffuse transition of Ni-doped Ba(Zr0.2Ti0.8)O3 ceramics , 2009 .

[11]  J. Hao,et al.  Structure and electrical properties of BaTiO3 prepared by sol–gel process , 2009 .

[12]  Pengfei Yu,et al.  Preparation and characterization of Co-doped BaTiO3 nanosized powders and ceramics , 2006 .

[13]  Z. K. Xu,et al.  Diffuse phase transition in BaTi1−xSnxO3 ceramics: An intermediate state between ferroelectric and relaxor behavior , 2006 .

[14]  Longtu Li,et al.  Phase Transitions in Nanocrystalline Barium Titanate Ceramics Prepared by Spark Plasma Sintering , 2006 .

[15]  T. Dunbar,et al.  Crystal and Defect Chemistry of Rare Earth Cations in BaTiO3 , 2001 .

[16]  A. West,et al.  Doping Mechanism and Permittivity Correlations in Nd-Doped BaTiO3 , 1999 .

[17]  H. Rietveld A profile refinement method for nuclear and magnetic structures , 1969 .