title: Temperature dependence of piezoelectric properties for textured SBN ceramics.
abstract: Temperature dependences of piezoelectric properties were studied for h001i textured ceramics of bismuth layer-structured ferroelectrics, SrBi(2)Nb(2)O(9) (SBN). The textured ceramics with varied orientation degrees were fabricated by templated, grain-growth method, and the temperature dependences of resonance frequency were estimated. Excellent temperature stability of resonance frequency was obtained for the 76% textured ceramics. The resonance frequency of the 76% textured specimens varied almost linearly over a wide temperature range. Therefore, the variation was slight, even in a high temperature region above 150 degrees C. Temperature stability of a quartz crystal oscillator is generally higher than that of a ceramic resonator around room temperature. The variation of resonance frequency for the 76% textured SrBi(2)Nb(2)O(9) was larger than that of oscillation frequency for a typical quartz oscillator below 150 degrees C also in this study. However, the variation of the textured SrBi(2)Nb(2)O(9) was smaller than that of the quartz oscillator over a wide temperature range from -50 to 250 degrees C. Therefore, textured SrBi(2)Nb(2)O(9) ceramics is a major candidate material for the resonators used within a wide temperature range.
authors.affiliation: Murata Manufacturing Company Ltd., Kyoto, Japan. mkimura@murata.co.jp
authors.forename: Masahiko
authors.initials: M
authors.lastname: Kimura
authors.forename: Hirozumi
authors.initials: H
authors.lastname: Ogawa
authors.forename: Daisuke
authors.initials: D
authors.lastname: Kuroda
authors.forename: Takuya
authors.initials: T
authors.lastname: Sawada
authors.forename: Yukio
authors.initials: Y
authors.lastname: Higuchi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Takagi
authors.forename: Yukio
authors.initials: Y
authors.lastname: Sakabe
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D002516:Ceramics / Q000737:chemistry*; D017097:Electric Impedance; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013499:Surface Properties; D013696:Temperature; D014159:Transducers