高温压电换能器的关键技术研究与应用

项目来源

山(略)然(略)金

项目主持人

杨(略)

项目受资助机构

济(略)

项目编号

Z(略)2(略)0(略)

立项年度

2(略)

立项时间

未(略)

研究期限

未(略) (略)

项目级别

省(略)

受资助金额

3(略)0(略)

学科

数(略)

学科代码

未(略)

基金类别

重(略)

关键词

压(略) (略)能(略) (略);(略)射(略) (略)i(略)e(略)t(略) (略)r(略)a(略) (略)n(略)c(略);(略)g(略)e(略)r(略)r(略) (略)u(略)c(略)e(略)s(略) (略)e(略)r

参与者

张(略)刘(略)国(略)朝(略)兆(略)世(略)法(略)秀(略)超

参与机构

山(略);(略)海(略)瓷(略)司

项目标书摘要:针对(略)温度低,无法满足高(略)过组分优化及工艺调(略)性和强压电性能的晶(略),计算换能器声学特(略)研究结构形式和结构(略)设计并制备出系列高(略)了若干创新成果:((略)系列晶体,LGN、(略)GS晶体在700℃(略)cm。在20~90(略)GT和STGS晶体(略)别为~20%、~9(略)设计并制备性能优良(略)三类高温压电器件。(略)温度下,撞击信号的(略)信号的电压值大于2(略)3背衬层的使用使工(略)Hz~273kHz(略)~500℃温度下,(略)5dB,变化率为~(略)压而没有任何损伤,(略)范围,断铅信号幅值(略)LN传感器接收到L(略)1dB,高于商业化(略)噪比;500℃的峰(略)1.3mV和22.(略)S、LGT和LN三(略)00℃范围内可稳定(略)α型(175℃)和(略)℃)工作温度,且多(略)器件的工作频率范围(略)Hz)大于R15α(略)kHz)和R15-(略)00kHz)。已在(略)Advanced (略)、CrystEng(略)表SCI论文4篇,(略)获社会力量科技奖1(略)士生6名。

Applicati(略): In view(略)rent prob(略)low worki(略)ure for t(略)al piezoe(略)nsducers,(略) meet the(略)rature op(略) this pro(略)h compone(略)tion and (略)paration (略)the cryst(略)s with go(略)ure stabi(略)rong piez(略)erformanc(略) prepared(略)te elemen(略)n,the aco(略)cteristic(略)ansducer (略)alculated(略)ructural (略)of the de(略)een deter(略)ffects of(略) form and(略) on acous(略)ance have(略)rched.A s(略)gh-temper(略)electric (略)nsducers (略)ed and fa(略)d the fol(略)ral innov(略)vements h(略)hieved.(i(略)f LGS cry(略)grown,the(略)ies of LG(略)and CNGS (略)e above 1(略)00℃.In th(略)20~900℃,t(略)ates of t(略)echanical(略)oefficien(略)GT and ST(略) are~20%,(略)respectiv(略) LGS-,LGT(略)ed high-t(略)piezoelec(略)s with ex(略)formances(略)ned and p(略) the LGS (略) amplitud(略)mpact sig(略)eater tha(略)the volta(略)lead brea(略)e larger (略)at 500℃.T(略)orous Al2(略)layer ext(略)erating f(略)nge to 28(略)When the (略) are heat(略)00℃,the a(略)f the imp(略) are abov(略)the chang(略)~3%.Furth(略)an withst(略)gh pressu(略)any damag(略) the 0MPa(略)ure range(略)m change (略)d break s(略)tude is 3(略)tion,for (略)he signal(略)atio of t(略) Lamb wav(略),which is(略)n 6dB for(略) acoustic(略)ensor.At (略)o-peak va(略)nal-to-no(略)till reac(略)d 22.8dB.(略)T,and LN (略) operate (略)he range (略)℃,which a(略)than the (略)emperatur(略)gn R15α(1(略)-LT(200℃)(略) operatin(略) range of(略) with por(略)6kHz~415k(略) R15α(50k(略)nd R15-LT(略)Hz).5 pap(略)en publis(略)indexed d(略) foreign (略)ch as Jou(略)anced Die(略)ystEngCom(略)l inventi(略)have been(略).2 doctor(略) and 6 ma(略)ts have b(略).1 social(略)nce and t(略)ward has (略)ed.

项目受资助省

山(略)

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