Piezoelectric ceramic yog cov khoom siv ua haujlwm ceramic-piezoelectric effect uas tuaj yeem hloov kho lub zog thiab hluav taws xob.Ntxiv nrog rau piezoelectricity, piezoelectric ceramics kuj muaj dielectric zog thiab elasticity.Hauv cov zej zog niaj hnub no, cov ntaub ntawv piezoelectric, ua cov khoom siv rau kev hloov pauv hluav taws xob, ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm siab.

Ferroelectric ceramics yog ib hom piezoelectric ceramics uas nws cov yam ntxwv tseem ceeb yog:
(1) Muaj cov polarization tshwm sim hauv qee qhov kub thiab txias.Thaum nws siab tshaj qhov kub ntawm Curie, qhov tshwm sim ntawm polarization ploj mus thiab cov theem ferroelectric hloov mus rau theem paraelectric;
(2) lub xub ntiag ntawm lub npe;
(3) Thaum lub xeev polarization hloov, lub dielectric tas li-kub tus yam ntxwv hloov pauv loj, ncov, thiab ua raws Curie-Weiss txoj cai;
(4) Lub zog siv polarization hloov nrog lub zog siv hluav taws xob los tsim lub voj hysteresis;
(5) Lub dielectric tsis tu ncua hloov nonlinearly nrog rau daim ntawv thov hluav taws xob;
(6) Tsim cov electrostriction lossis electrostrictive strain nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb

Barium titanate yog ferroelectric compound khoom nrog siab dielectric tas li thiab tsis tshua muaj dielectric poob.Nws yog ib qho ntawm cov khoom siv dav siv hauv hluav taws xob ceramics thiab yog lub npe hu ua "tus ncej ntawm kev lag luam hluav taws xob ceramics".

BATIO 3ceramics yog kev tshawb fawb thiab kev loj hlob ntawm cov neeg paub tab tsis muaj piezoelectric ceramic cov ntaub ntawv nrog siab dielectric tas li, loj electromechanical coupling coefficient thiab piezoelectric tas li, nruab nrab txhua yam zoo tshaj plaws thiab me me dielectric poob.

Raws li cov khoom siv ferroelectric, barium titanate (BaTiO3) yog siv dav hauv muti-txheej ceramic capacitors, sonar, infrared radiation detection, grain ciam ceramic capacitors, zoo kub coefficient thermal ceramics, thiab lwm yam. ceramics.Nrog rau kev tsim cov khoom siv me me, lub teeb yuag, txhim khu kev qha thiab nyias nyias thiab cov khoom siv hluav taws xob, qhov kev thov rau high-purity ultra-fine barium titanate hmoov tau dhau los ua sai heev.