中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
z1期
146-151
,共6页
无铅陶瓷%BNT%钙钛矿结构%场诱导应变
無鉛陶瓷%BNT%鈣鈦礦結構%場誘導應變
무연도자%BNT%개태광결구%장유도응변
lead-free ceramics%BNT%perovskite structure%field induced strain
采用固相反应法制备Bi0.5Na0.5TiO3-SrZrO3(BNT-SZ100x, x=0-0.15)无铅陶瓷，通过XRD、SEM和电致应变等手段对其进行表征。XRD分析表明样品的第二相为纯钙钛矿型。铁电致应变曲线表明：当SZ添加到BNT陶瓷中，铁电顺序被破坏。当添加5%(摩尔分数)SZ时，剩余极化强度和压电常数的最大值分别为32μC/cm2和102 pC/N。BNT-SZ9样品的电致应变(Smax)和归一化应变(Smax/Emax=d*33)的最大值分别为0.24%和340 pm/V。
採用固相反應法製備Bi0.5Na0.5TiO3-SrZrO3(BNT-SZ100x, x=0-0.15)無鉛陶瓷，通過XRD、SEM和電緻應變等手段對其進行錶徵。XRD分析錶明樣品的第二相為純鈣鈦礦型。鐵電緻應變麯線錶明：噹SZ添加到BNT陶瓷中，鐵電順序被破壞。噹添加5%(摩爾分數)SZ時，剩餘極化彊度和壓電常數的最大值分彆為32μC/cm2和102 pC/N。BNT-SZ9樣品的電緻應變(Smax)和歸一化應變(Smax/Emax=d*33)的最大值分彆為0.24%和340 pm/V。
채용고상반응법제비Bi0.5Na0.5TiO3-SrZrO3(BNT-SZ100x, x=0-0.15)무연도자，통과XRD、SEM화전치응변등수단대기진행표정。XRD분석표명양품적제이상위순개태광형。철전치응변곡선표명：당SZ첨가도BNT도자중，철전순서피파배。당첨가5%(마이분수)SZ시，잉여겁화강도화압전상수적최대치분별위32μC/cm2화102 pC/N。BNT-SZ9양품적전치응변(Smax)화귀일화응변(Smax/Emax=d*33)적최대치분별위0.24%화340 pm/V。
The lead-free SrZrO3-modified Bi0.5Na0.5TiO3 (BNT-SZ100x, with x=0-0.15) ceramics were fabricated by a conventional solid-state reaction method. The effects of SZ addition on BNT ceramics were investigated through X-ray diffraction (XRD), scanning electron microscopy (SEM), ferroelectric and electric field-induced strain characterizations. XRD analysis revealed a pure perovskite phase without any traces of secondary phases. Ferroelectric and bipolar field induced-strain curves indicated a disruption of ferroelectric order upon SZ addition into BNT ceramics. A maximum value of remnant polarization (32 μC/cm2) and piezoelectric constant (102 pC/N) was observed at 5%(mole fraction) of SZ. Maximum value of the electric field-induced strain (Smax=0.24%) corresponding to normalized strain (Smax/Emax=d*33=340 pm/V) was obtained at BNT-SZ9.
