C-Axis Orientation of KSr2Nb5O15 Using a Rotating Magnetic Field

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We fabricated c-axis-oriented KSr2Nb5O15 (KSN) ceramics using a rotating strong magnetic field with subsequent sintering. The degree of orientation of the green compact was about 0.1 for (00l), as evaluated from the Lotgering factor in X-ray diffraction. The orientation of the structure was enhanced by sintering at 1673 K; the Lotgering factor of the sintered body increased to 0.8. Microstructural examination indicated a well-oriented structure in which the longitudinal axes of the rectangular-shaped grains were oriented perpendicular to the axis of rotation of the magnetic field. KSN oriented on the a, b axes could be similarly fabricated using a strong static magnetic field.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2007.01978.x

Affiliations: Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata, Japan

Publication date: November 1, 2007

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