合肥工业大学学报（自然科学版）
閤肥工業大學學報（自然科學版）
합비공업대학학보（자연과학판）
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2010年
1期
23-26
,共4页
无铅压电陶瓷%准同型相界%线性叠加原理%弛豫铁电体
無鉛壓電陶瓷%準同型相界%線性疊加原理%弛豫鐵電體
무연압전도자%준동형상계%선성첩가원리%이예철전체
lead-free piezoelectric ceramic%morphotropic phase boundary%linear combination rule%relaxor
文章运用准同型相界线性霍加原理,设计了无铅压电陶瓷三元体系(1-x)(0.968B_(0.5)Na_(0.5)TiO_3-0.032BaTiO_3)-xBi_(0.5)TiO_3(简称BNBKT100x),采用传统压电陶瓷同相合成法制备BNBKT100x样品,XRD结果表明,所制备的陶瓷样品为纯的钙钛矿相,其准同型相界在0.08 < x < 0.10范围内;详细研究了BNBKT100x样品在准同型相界附近的介电、压电性能和介电弛豫特性.BNBKT100x三元体系无铅压电陶瓷在整个实验绀分范围内均为弛豫铁电体,最好的电性能出现在准同型相界附近的组成BNBKT9,其介电和压电性能参数为d_(33)=162 pC/N,k_p=31%,ε_(33)~T=2080,tan δ=4%,Q_m=119.
文章運用準同型相界線性霍加原理,設計瞭無鉛壓電陶瓷三元體繫(1-x)(0.968B_(0.5)Na_(0.5)TiO_3-0.032BaTiO_3)-xBi_(0.5)TiO_3(簡稱BNBKT100x),採用傳統壓電陶瓷同相閤成法製備BNBKT100x樣品,XRD結果錶明,所製備的陶瓷樣品為純的鈣鈦礦相,其準同型相界在0.08 < x < 0.10範圍內;詳細研究瞭BNBKT100x樣品在準同型相界附近的介電、壓電性能和介電弛豫特性.BNBKT100x三元體繫無鉛壓電陶瓷在整箇實驗紺分範圍內均為弛豫鐵電體,最好的電性能齣現在準同型相界附近的組成BNBKT9,其介電和壓電性能參數為d_(33)=162 pC/N,k_p=31%,ε_(33)~T=2080,tan δ=4%,Q_m=119.
문장운용준동형상계선성곽가원리,설계료무연압전도자삼원체계(1-x)(0.968B_(0.5)Na_(0.5)TiO_3-0.032BaTiO_3)-xBi_(0.5)TiO_3(간칭BNBKT100x),채용전통압전도자동상합성법제비BNBKT100x양품,XRD결과표명,소제비적도자양품위순적개태광상,기준동형상계재0.08 < x < 0.10범위내;상세연구료BNBKT100x양품재준동형상계부근적개전、압전성능화개전이예특성.BNBKT100x삼원체계무연압전도자재정개실험감분범위내균위이예철전체,최호적전성능출현재준동형상계부근적조성BNBKT9,기개전화압전성능삼수위d_(33)=162 pC/N,k_p=31%,ε_(33)~T=2080,tan δ=4%,Q_m=119.
Lea&free(1-x)(0.968Bi_(0.5)Na_(0.5)TiO_3-0.032BaTiO_3)-xBi_(0.5) K_(0.5)TiO_3(BNBKT100x)ternary system piezoelectric ceramics near the morphotropic phase boundary(MPB)were designed by a linear combination rule,and prepared by a conventional solid-state reaction method.The dielectric and pie-zoelectric Droperties and the relaxor behavior were studied in this paper.The XRD results show that all BNBKT100x ceramic samples had pure pervoskite structure and the MPB was identified in the composition range of 0.08 < x < 0.10.The BNBKT100x ceramics exhibited relaxor behavior in the whole comDosition range,and the best properties were observed at x=0.09 with d_(33)=162 pC/N,k_p=31%,ε_(33)~T=2 080,tan δ=4%and Q_m=119.
