Lim, Hyuk Oh, Young-Jei 2024-01-21T03:00:48Z 2024-01-21T03:00:48Z 2021-09-01 2006-07 0021-4922 https://pubs.kist.re.kr/handle/201004/135373 The microwave dielectric properties of Bi1-x,DxNbO4 ceramics were investigated as a function of Dy3+ substitution (0 <= x <= 0.1). Bi1-xDyxNbO4 compositions prepared at low temperatures (900-960 degrees C). A single orthorhombic (alpha-BiNbO4) phase in all Bi1-xDyxNbO4 compositions was obtained for the whole sintering temperature range. The decrease in the dielectric constant of the Bi1-xDyxNbO4 ceramics with increasing Dy content is attributed to the decrease in polarizability as Dy is substituted to the Bi site. The decrease in the temperature coefficient of the resonant frequency is due to the distortion of the oxygen octahedra. English JAPAN SOC APPLIED PHYSICS TEMPERATURE-COEFFICIENT BOND VALENCE Microwave dielectric properties of Dy2O3 substituted BiNbO4 ceramics Article 10.1143/JJAP.45.5865 1 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.45, no.7, pp.5865 - 5868 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 45 7 5865 5868 scie scopus 000239322400048 2-s2.0-33746803214 Physics, Applied Physics Article TEMPERATURE-COEFFICIENT BOND VALENCE Bi1-xDyxNbO4 ceramics dielectric properties low temperature sintering ionic polarizabilites bond valence