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000040949 0247_ $$2DOI$$a10.1016/j.ssc.2004.07.071
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000040949 084__ $$2WoS$$aPhysics, Condensed Matter
000040949 1001_ $$0P:(DE-HGF)0$$aWang, H.$$b0
000040949 245__ $$aBismuth zinc niobate (Bi1.5ZnNb1.5O7) ceramics derived from metallo-organic decomposition precursor solution
000040949 260__ $$aNew York, NY [u.a.]$$bElsevier Science$$c2004
000040949 300__ $$a481 - 486
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000040949 440_0 $$05564$$aSolid State Communications$$v132$$x0038-1098
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000040949 520__ $$aThe preparation, microstructure development and dielectric properties of Bi1.5ZnNb1.5O7 pyrochlore ceramics by metalloorganic decomposition (MOD) route are reported. Homogeneous precalcined ceramic powders of 13-36 nm crystallite size were obtained at temperatures ranging from 500 to 700degreesC. The thermal decomposition/oxidation of the gelled precursor solution was chemically analyzed, TG/DTA, XRD, and SEM, led to the formation of a pure cubic pyrochlore phase with a stoichiometry close to Bi1.5ZnNb1.5O7 which begins to form at 500degreesC. The metallo-organic precursor synthesis method, where Bi, Zn and Nb ions are chelated to form metal complexes, allows the control of Bi/Zn/Nb stoichiornetric ratio on a molecular scale leading to the rapid formation of bismuth zinc niobate (Bi1.5ZnNb1.5O7) ceramic fine powders with pure pyrochlore structure. The powders were pressed into pellets and can be sintered at temperatures as low as 800-1000degreesC. Fine crystalline ceramics with the grain size in the range of 200-500 nm have been obtained at the sintering temperature of 800degreesC. The dielectric Properties in high frequency to microwave range were measured and discussed. (C) 2004 Elsevier Ltd. All rights reserved.
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000040949 65320 $$2Author$$aBZN ceramics
000040949 65320 $$2Author$$achemical synthesis
000040949 65320 $$2Author$$adielectric properties
000040949 7001_ $$0P:(DE-Juel1)VDB22118$$aElsebrock, R.$$b1$$uFZJ
000040949 7001_ $$0P:(DE-HGF)0$$aSchneller, T.$$b2
000040949 7001_ $$0P:(DE-Juel1)131022$$aWaser, R.$$b3$$uFZJ
000040949 7001_ $$0P:(DE-HGF)0$$aYao, X.$$b4
000040949 773__ $$0PERI:(DE-600)1467698-9$$a10.1016/j.ssc.2004.07.071$$gVol. 132, p. 481 - 486$$p481 - 486$$q132<481 - 486$$tSolid state communications$$v132$$x0038-1098$$y2004
000040949 8567_ $$uhttp://dx.doi.org/10.1016/j.ssc.2004.07.071
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