01328nas a2200229   4500008004100000022001400041245005600055210005600111260010500167300001200272490000700284520056100291653001300852653002400865653002500889653002200914100002200936700001800958700001900976700001300995856009001008       2005                        eng d  a0250-470700aCoprecipitation technique to prepare ZnM2O6 powders0 aCoprecipitation technique to prepare ZnM2O6 powders  aC V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIAbINDIAN ACADEMY SCIENCEScJUN  a205-2070 v283 a<p>A simple coprecipitation technique was successfully applied for the preparation of pure ultrafine single phase, ZnNb2O6 (ZN). Ammonium hydroxide was used to precipitate Zn2+ and Nb5+ cations as hydroxides simultaneously. This precursor on heating at 750 degrees, produced ZN powders. For comparison, ZN powders were also prepared by the traditional solid state method. The phase contents and lattice parameters were studied by the powder X-ray diffraction (XRD). Particle size and morphology were studied by transmission electron spectroscopy (TEM).</p>10aCeramics10aElectron microscopy10aelectronic materials10aX-ray diffraction1 aDeshpande, V., V.1 aPatil, M., M.1 aNavale, S., C.1 aRavi, V.  uhttps://library.ncl.res.in/content/coprecipitation-technique-prepare-znm2o6-powders-001439nas a2200241   4500008004100000022001400041245005000055210004900105260009900154300001200253490000700265520067900272653002100951653001300972653002400985653001101009653002201020100001901042700001901061700002001080700001301100856008401113       2007                        eng d  a0272-884200aCo-precipitation technique to prepare BaTa2O60 aCoprecipitation technique to prepare BaTa2O6  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcJAN  a297-2990 v333 a<p>A mixture of ammonium oxalate and ammonium hydroxide was used to co-precipitate barium and tantalum ions as barium oxalate and tantalum hydroxide under basic conditions. On calcination at 750 degrees C, this precursor yielded BaTa2O6 (BT) ceramics. This is much lower temperature as compared to that prepared by traditional solid-state method (1000 degrees C) as reported for the formation of BaTa206. Transmission electron microscope (TEM) investigations revealed that the average particle size is 70 nm for the calcined powders. The room temperature dielectric constant at 1 kHz is found to be 100. (c) 2005 Elsevier Ltd and Techna Group S.r.l. All rights reserved.</p>10abarium tantalate10aCeramics10aElectron microscopy10aOxides10aX-ray diffraction1 aNavale, S., C.1 aSamuel, Violet1 aGaikwad, A., B.1 aRavi, V.  uhttps://library.ncl.res.in/content/co-precipitation-technique-prepare-bata2o6-0