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A thin film made of an ion-exchangeable layered compound, K 4 Nb 6 O 17 , was prepared by a novel method. Fine particles of K 4 Nb 6 O 17 obtained by wet-grinding of the powder were coated on a substrate and calcined. Recrystallization of the fine particles at 1073K was confirmed by XRD and SEM, and very flat and large crystals with the b-axis perpendicular...
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