Ifomula yeFomula ye-Ceramic iyinto ebaluleke kakhulu ebonakalayo ye-MLCC, i-accounting ye-20% ~ 45% yezindleko ze-MLCC. Ikakhulu, i-MLCC ephezulu ye-MLCC inezidingo eziqinile ekuhlanzeni, usayizi wezinhlayiyana, ubuncane kanye ne-morphology ye-ceramic powder, kanye nezindleko ze-ceramic powder ama-akhawunti aphezulu aphezulu. I-MLCC iyindlela ye-electronic ceramic powder eyakhiwe ngokungeza izengezo eziguquliwe ku-i-barium titanate powder, engasetshenziswa ngqo njenge-dielectric e-MLCC.
I-Rare Earth Oxidesyizinto ezibalulekile zokudonsa amanzi we-MLCC dielectric powders. Yize zibalwa ngaphansi kwe-1% yezinto zokwakha ze-MLCC, zingadlala indima ebalulekile ekuguquleni izakhiwo ze-ceramic futhi zithuthukise ngempumelelo ukuthembeka kwe-MLCC. Bangenye yezinto ezibalulekile ezibalulekile ezibalulekile enqubweni yokuthuthuka kwamandla we-lcc ceramic.
1. Iziphi izinto zomhlaba ezingavamile? Izinto zomhlaba ezingandile, ezaziwa nangokuthi izinsimbi zomhlaba ezingavamile, ziyisikhathi esijwayelekile sezinto zaseLanthanide kanye namaqembu angavamile emhlabeni. Banezinto ezikhethekile ze-elekthronikhi kanye nezakhiwo zomzimba nezamakhemikhali, kanye nezinto zabo zikagesi ezihlukile, zokubona, izibuthe, kanye nezakhiwo ezishisayo zaziwa ngokuthi yi-treasure trove yezinto ezintsha.
Izinto zomhlaba ezingavamile zihlukaniswe: izinto zomhlaba ezikhanyayo (ngezinombolo ezincane ze-athomu):ikhentiyamu(SC),ytttrium(Y),uhlobo linthanum(La),umrintshi(CE),I-PraseOdDODYIUM(Pr),needymium(ND), i-Promethium (PM),iSamurium(I-SM) neindlu yokuhlala yokungenayogugu(EU); Izinto ezinamandla zomhlaba ezingavamile (ezinezinombolo ezinkulu ze-athomu):igadiki(GD),i-terbium(TB),dysprosium(Dy),IHolmium(Ho),umphetho(Er),Thululium(Tm),yterterbium(Yb),lutetium(Lu).
Ama-oxide e-Rare Earth asetshenziswa kabanzi kuma-ceramics, ikakhulukaziI-Cerrium Oxide, lanthanum oxide, neodymium oxide, dysprosium oxide, ISamarium Oxide, Holmium oxide, I-Erbium oxide, Njz.
2. Ukusetshenziswa komhlaba ongavamile ku-MLCCI-barium titanatekungenye yezinto eziphambili zokusebenza zokukhiqiza i-MLCC. I-Barium Titanate ine-piezoelectric enhle kakhulu, i-ferroeelectric kanye ne-dielectric Properties. I-Pure Barium Titanate ine-coeffient ethe xaxa yokushisa kwamandla, izinga lokushisa eliphakeme kakhulu nokulahleka okukhulu kwe-dielectric, futhi akufanelekile ukusetshenziswa okuqondile ekwakheni ama-capacic capacic.
Ucwaningo selukhombisile ukuthi izakhiwo ze-dielectric ze-barium titanate zihlobene kakhulu nesakhiwo sayo sekristalu. Ngokusebenzisa doping, isakhiwo se-crystal se-barium titanate singalawulwa, ngaleyo ndlela sithuthukise izakhiwo zaso ze-dielectric. Lokhu kungenxa yokuthi i-barium titanate enhle eyonakele izokwakha isakhiwo se-Shell-Core ngemuva kokudonsa, okubamba iqhaza elibalulekile ekwenzeni ngcono izici zokushisa zeCapacitance.
I-DOPING RARE EMERTIC ELTETET ELTYENT ESITHEMBISO SAMAHHALA SARIUMITITITITITE ngesinye sezindlela zokwenza ngcono indlela yokuziphatha kanye nokwethenjwa kwe-MLCC. Ucwaningo nge-Rare Earth Ion DOped Barium Titanate ingalandelwa emuva ekuqaleni kweminyaka yo-1960. Ukungezwa kwe-Rare Earth Oxides kunciphisa ukuhamba kwe-oksijini, okungathuthukisa ukuqina kokushisa kwe-dielectric kanye nokumelana kukagesi kwe-ceremics ye-dielectric, futhi kuthuthukise ukusebenza kanye nokwethembeka kwemikhiqizo. I-Axides Engajwayelekile Engafakwanga Ema-Axides Ayifaka:ytttrium oxide(Y2O3), dysprosium oxide (Dy2o3), Holmium oxide (Ho2o3), njll.
Usayizi we-radius we-rare Earth Ion unomthelela obalulekile esikhundleni se-curie peak ye-ceramics ye-barium titanics esekelwe. I-DOPING yezinto zomhlaba ezingandile ezinama-radii ahlukene angaguqula amapharamitha we-lattice amakristalu anezinhlaka eziyinhloko zegobolondo, ngaleyo ndlela eshintsha izingcindezi zangaphakathi zamakristalu. Ukudonswa kwama-ion are-Earth ane-radii enkulu kuholela ekwakhekeni kwezigaba ze-pseudocubic kumakristalu kanye nokuxineka okusele ngaphakathi kwamakristalu; Ukwethulwa kwe-Rare Earth Ions nge-radii emincane kukhiqiza ukucindezelwa okuncane kwangaphakathi futhi kuphoxe ukuguquguquka kwesigaba esihlakalweni esiyisisekelo segobolondo. Noma ngamanani amancane ezengezo, izici ze-Rare Earth oxides, njengosayizi wezinhlayiyana noma ukwakheka, kungathinta kakhulu ukusebenza okuphelele noma ikhwalithi yomkhiqizo. Ukusebenza okuphezulu kwe-MLCC kuhlale kukhula ku-miniaturization, ukufaka okuphezulu, amandla amakhulu, ukuthembeka okuphezulu, kanye nezindleko eziphansi. Imikhiqizo ye-MLCC ephekwe kakhulu emhlabeni ifake i-nanoscale, futhi ingabe i-Ankare Earth Earth, njengezinto ezibalulekile ze-doping, kufanele ibe nosayizi we-nanoscale yizinhlayiyana nokuhlakazeka okuhle kwe-powder.
Isikhathi Sokuthumela: Oct-25-2024