01545nas a2200229   4500008004100000022001400041245005700055210005700112260007300169300001400242490000700256520082500263653001301088653002301101653002401124653002101148653001101169100001801180700001701198700001301215856008701228       2005                        eng d  a0167-577X00aPreparation of ferroelectric BaNb2O6 the urea method0 aPreparation of ferroelectric BaNb2O6 the urea method  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJUN  a1929-19310 v593 a<p>A precipitate was formed when an aqueous solution of BaCl2, NbF5 and urea in required ratio (the ratio of total metal cations to the urea is five) is heated on a water bath at 100 degrees C. This precipitate on decomposition at 600 degrees C yielded the nanocrystallites of BaNb2O6 (BN), as confirmed by X-ray diffraction study (XRD). This is a much lower temperature as compared to that prepared by traditional solid state method (1000 degrees C) as reported for the formation of BaNb2O6. Transmission electron microscope (TEM) investigations revealed that the average particle size is 85 nm for the calcined powders. The room temperature dielectric constant at 1 kHz is found to be 900. The ferroelectric hysteresis loop parameters of these samples were also studied. (c) 2005 Elsevier B.V. All rights reserved.</p>10aCeramics10aChemical synthesis10aelectronic material10aferroelectricity10aOxides1 aDhage, S., R.1 aPasricha, R.1 aRavi, V.  uhttps://library.ncl.res.in/content/preparation-ferroelectric-banb2o6-urea-method-0