Kim, I.-T. Chung, S.J. Hong, K.S. 2024-01-21T21:12:51Z 2024-01-21T21:12:51Z 2022-01-10 1995-01 0015-0193 https://pubs.kist.re.kr/handle/201004/145395 The order-disorder behavior of Ba(Ni1/3Nb2/3O3 has been investigated using various heat treatments. Heat treated samples were characterized using X-ray diffraction, transmission electron microscopy, and energy-dispersive spectroscopy, interactively. It has been confirmed that the formation of Nb-rich liquid phase resulted in an increase in defect concentration of matrix grains and favored disordering. Ba(Ni1/3Nb2/3O3, however, showed a drastical change in order-disorder behavior by the heat treatment history. The samples prepared from the calcined powder showed a transition from disorder to order with increasing sintering time at 1400°C whereas the samples preheat treated at 1300°C for 100 h showed a transition from order to disorder at 1500°C. This difference in order-disorder behavior has been discussed in terms of the order-disorder phase boundary, liquid-phase sintering, and the nucleation and growth. The growth process of ordered precipitates was also suggested. ？ 1995, Taylor & Francis Group, LLC. All rights reserved. English Barium compounds Order disorder transitions Sintering Thermal effects Transmission electron microscopy X ray crystallography Barium nickel niobate Energy dispersive spectroscopy Liquid phase formation Perovskite Effects of liquid phase formation on the order-disorder behavior of Ba(Ni1/3Nb2/3)O3 Article 10.1080/00150199508236028 1 Ferroelectrics, v.173, no.1, pp.125 - 137 Ferroelectrics 173 1 125 137 scopus 2-s2.0-0029493316 Article Barium compounds Order disorder transitions Sintering Thermal effects Transmission electron microscopy X ray crystallography Barium nickel niobate Energy dispersive spectroscopy Liquid phase formation Perovskite barium nicket niobate liquid-phase sintering Order-disorder perovskite transmission electron microscopy