Piezoelectric ceramic yog ua haujlwm tej hub nplej-piozoelectric nyhuv uas tuaj yeem hloov kho tshuab hluav taws xob thiab hluav taws xob. Ntxiv nrog rau cov khoom noj qab zib, cov khoom noj qab zib cov khoom noj kuj tseem muaj cov khoom dielecric thiab elasticity. Hauv lub zej zog niaj hnub, cov ntaub ntawv piezoelectric, raws li cov khoom ua haujlwm rau kev hloov pauv hluav taws xob hauv tshuab hluav taws xob, ua lub luag haujlwm tseem ceeb hauv cov kab hlau siab.

Ferroelectric ceramics yog hom piezoelectric ceramics uas nws cov yam ntxwv tseem ceeb yog:
(1) Muaj kev sib txawv ntawm kev sib tw polarization hauv qhov ntsuas kub. Thaum nws tseem siab dua ib qho kub thiab txias, lub spontaneous polarization ploj thiab cov kev hloov ferrroicectric hloov mus rau theem ua ntu zus;
(2) Lub xub ntiag ntawm tus sau;
(3) Thaum kev hloov pauv ntawm lub xeev, tus yam ntxwv tsis muaj qhov kub thiab txias, thiab cov lus cog tseg curie-weiss txoj cai;
(4) Kev siv hluav taws xob kev hloov pauv nrog cov siv hluav taws xob teb lub zog los ua lub voj voos hysteresis;
(5) Lub dielectric tas li hloov pauv nonlinearly nrog cov khoom siv hluav taws xob hauv hluav taws xob;
(6) tsim hluav taws xob lossis tshuab hluav taws xob hauv qab kev txiav txim ntawm cov hluav taws xob teb

Barium Titanate yog cov khoom siv hluav taws xob ferrroelectric sib xyaw nrog cov dielectric tas li thiab qis dielectric ploj. Nws yog ib qho ntawm cov khoom siv dav tshaj plaws hauv cov khoom siv hluav taws xob thiab yog lub npe hu ua "ncej hluav taws xob ceramic kev lag luam".

3Ceramics yog kev tshawb fawb thiab kev txhim kho ntawm cov txhuas dawb huv-dawb piezoelectric tas li, loj electrome excantant thiab nruab nrab dielectric poob.

Raws li cov khoom siv hluav taws xob ferrroelectric, batio3) yog siv dav hauv muti-confamic ceracitors, thiab lwm yam ntawm cov kev cia siab tau hu ua tus ncej hauv hluav taws xob ceramics. Nrog rau kev txhim kho me me, kev txhim khu kev yooj yim, txhim khu kev qha thiab thinner hluav taws xob ultra-zoo barium-zoo barium-zoo Barium