Ko te piezoelectric ceramic he taonga uku-piezoelectric awe ka taea te huri i te kaha miihini me te hiko hiko.I tua atu i te piezoelectricity, he mea dielectric me te elasticity nga karaehe piezoelectric.I roto i te hapori hou, ko nga rauemi piezoelectric, hei taonga mahi mo te hurihanga hiko, he mahi nui i roto i nga mara hangarau tiketike.

Ko nga karaehe ferroelectric he momo piezoelectric ceramics ko ona ahuatanga matua ko:
(1) He polarization mahorahora i roto i tetahi awhe pāmahana.Ina teitei ake i te pāmahana Curie, ka ngaro te polarization mahorahora ka huri te wahanga ferroelectric ki te wahanga parahiko;
(2) te aroaro o te rohe;
(3) Ka huri te ahua polarization, ka tino rerekee te ahuatanga o te pāmahana-mau-a-ringa, ka eke ki runga, ka whai ki te ture a Curie-Weiss;
(4) Ka huri te kaha o te polarization me te kaha o te papa hiko e whakamahia ana hei hanga i te hysteresis loop;
(5) Ka huri te taima o te dielectric ki te papa hiko e whakamahia ana;
(6) Te whakaputa i te hiko, te riaka hiko ranei i raro i te mahi a te papa hiko

Ko te Barium titanate he rauemi pūhui ferroelectric me te teitei o te dielectric me te iti o te mate dielectric.Koinei tetahi o nga mea tino whakamahia i roto i nga taonga hiko hiko me te mohiotia ko te "pou o te ahumahi hiko hiko".

BaTIO3he rangahau me te whakawhanaketanga o nga rawa piezoelectric piezoelectric tino pakeke me te teitei o te dielectric, te whakarea hononga hiko nui me te toi piezoelectric, te tauwehenga kounga miihini reo me te mate dielectric iti.

Ka rite ki te rauemi ferroelectric, barium titanate (BaTiO3) Kei te whakamahia whānuitia i roto i te muti-apa pūnga uku, sonar, rapunga iraruke pōkākā, witi rohe pūnga iahiko uku, whakarea pāmahana pai ceramics waiariki, etc. karamu.Na te whakawhanaketanga o nga taputapu hiko iti, maamaa, pono me te kikokore me o raatau waahanga, kei te kaha haere te tono mo te paura titanate barium titanate tino parakore.