01524nas a2200265   4500008004100000022001400041245006500055210006400120260009900184300001200283490000700295520068100302653001300983653002300996653002401019653001101043653000801054100001801062700001501080700001901095700001801114700001801132700001301150856009501163       2008                        eng d  a0272-884200aCo-precipitation method for preparation of Bi3TiNbO9 powders0 aCoprecipitation method for preparation of Bi3TiNbO9 powders  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcAPR  a675-6770 v343 a<p>A simple co-precipitation technique has been successfully used for the preparation of pure, ultrafine, single phase Bi3TiNbO9 (BTN). An aqueous ammonium hydroxide solution was used to simultaneously precipitate Bi3+, Ti4+ and Nb5+, cations as hydroxides under basic conditions (pH similar to 9). No pyrochlore phase was found while heating powder at 500 degrees C and pure BTN phase was found to be formed by X-ray diffraction (XRD). For comparison, BTN samples were also synthesized by the traditional solid state method. The sequence of phase formation in both cases were investigated by XRD studies. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.</p>10aCeramics10aChemical synthesis10aelectronic material10aOxides10aXRD1 aGupta, U., N.1 aSamuel, V.1 aMuthurajan, H.1 aKumar, H., H.1 aPatil, S., D.1 aRavi, V.  uhttps://library.ncl.res.in/content/co-precipitation-method-preparation-bi3tinbo9-powders-001551nas a2200277   4500008004100000022001400041245005700055210005600112260009900168300001400267490000700281520069300288653001100981653001300992653002301005653002401028653001101052653002201063100001401085700001801099700001501117700001901132700001801151700001301169856009101182       2008                        eng d  a0272-884200aCo-precipitation technique to prepare BiNbO4 powders0 aCoprecipitation technique to prepare BiNbO4 powders  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcAUG  a1565-15670 v343 a<p>A simple co-precipitation technique was successfully used for the preparation of pure ultrafine single phase BiNbO4. A standard ammonium hydroxide solution was used to precipitate Bi3+ and Ta5+ cations as hydroxides simultaneously under basic conditions. For comparison, BN powders were also prepared by the traditional solid-state method. It is observed that the co-precipitation technique produces BiNbO4 on heating at 600 degrees C, whereas complete phase formation occurs only at 800 degrees C in the solid-state method. The phase contents and lattice parameters were Studied by powder X-ray diffraction (XRD). (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.</p>10aBiNbO410aCeramics10aChemical synthesis10aElectron microscopy10aOxides10aX-ray diffraction1 aRadha, R.1 aGupta, U., N.1 aSamuel, V.1 aMuthurajan, H.1 aKumar, H., H.1 aRavi, V.  uhttps://library.ncl.res.in/content/co-precipitation-technique-prepare-binbo4-powders-001531nas a2200289   4500008004100000022001400041245005700055210005600112260007300168300001200241490000700253520066600260653001100926653001300937653002300950653002400973653001100997653002201008100001901030700001801049700001601067700001901083700002101102700001401123700001301137856009101150       2008                        eng d  a0167-577X00aCo-precipitation technique to prepare BiTaO4 powders0 aCoprecipitation technique to prepare BiTaO4 powders  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a501-5030 v623 a<p>A simple co-precipitation technique has been successfully used for the preparation of pure ultrafine single phase BiTaO4. A standard ammonium hydroxide solution was used to precipitate Bi3+ and Ta5+ cations as hydroxides simultaneously under basic conditions. This precursor, on heating at 600 degrees C, produced product phase. This is the lowest temperature for the formation of BiTaO4 phase so far reported in the literature. For comparison BiTaO4 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). (c) 2007 Elsevier B.V. All rights reserved.</p>10aBiTaO410aCeramics10aChemical synthesis10aElectron microscopy10aOxides10aX-ray diffraction1 aMuthurajan, H.1 aGupta, U., N.1 aRituraj, B.1 aRao, Koteswara1 aPradhan, Sivaram1 aRadha, R.1 aRavi, V.  uhttps://library.ncl.res.in/content/co-precipitation-technique-prepare-bitao4-powders-0