Barium titanate abụghị naanị ngwaahịa kemịkalụ dị mma dị mkpa, kama ọ bụkwa otu n'ime akụrụngwa akụrụngwa dị mkpa na ụlọ ọrụ elektrọnik. Na usoro BaO-TiO2, na mgbakwunye na BaTiO3, enwere ọtụtụ ogige dị ka Ba2TiO4, BaTi2O5, BaTi3O7 na BaTi4O9 nwere oke barium-titanium dị iche iche. N'ime ha, BaTiO3 nwere uru bara uru kachasị ukwuu, na aha kemịkal ya bụ barium metatitanate, nke a makwaara dị ka barium titanate.

1. Njirimara physicochemical nkenano barium titanate(nano BaTiO₃)

1.1. Barium titanate bụ ntụ ntụ na-acha ọcha nke nwere ebe mgbaze nke ihe dịka 1625 Celsius na nnukwu ike nke 6.0. Ọ bụ soluble na sulfuric acid gbadoro anya, hydrochloric acid na hydrofluoric acid, mana enweghị ike ime ya na nitric acid, mmiri na alkali na-ekpo ọkụ. Enwere ụdị mgbanwe kristal ise: ụdị kristal hexagonal, ụdị cubic kristal, ụdị kristal tetragonal, ụdị kristal trigonal na ụdị kristal orthorhombic. Nke kachasị bụ tetragonal phase crystal. Mgbe BaTiO2 na-edobere n'okirikiri ọkụ eletrik dị elu ugbu a, mmetụta polarization na-aga n'ihu ga-eme n'okpuru ebe Curie nke 120 ° C. Polarized barium titanate nwere ihe abụọ dị mkpa: ferroelectricity na piezoelectricity.

1.2. The dielectric mgbe niile dị nnọọ elu, nke na-eme nano barium titanate nwere pụrụ iche dielectric Njirimara, na aghọwo ihe dị oké mkpa ihe n'etiti elu-ugboro circuit components. N'otu oge ahụ, a na-ejikwa ọkụ eletrik dị ike na mgbasa ozi mgbasa ozi, mgbanwe ugboro na ngwaọrụ nchekwa.

1.3. Ọ nwere ezigbo piezoelectricity. Barium titanate bụ nke ụdị perovskite ma nwee ezigbo piezoelectricity. Enwere ike iji ya na ntụgharị ike dị iche iche, ntụgharị ụda, ntụgharị mgbaàmà na oscillation, microwave na sensọ dabere na piezoelectric kwekọrọ sekit. iberibe.

1.4. Ferroelectricity bụ ọnọdụ dị mkpa maka ịdị adị nke mmetụta ndị ọzọ. Mmalite nke ferroelectricity sitere na polarization na-atụghị anya ya. Maka ceramics, piezoelectric, pyroelectric, na fotoelectric mmetụta niile sitere na polarization kpatara site na polarization ozugbo, okpomọkụ ma ọ bụ ọkụ eletrik.

1.5. Mmetụta ọnụọgụ ọkụ dị mma. Mmetụta PTC nwere ike ime ka mgbanwe nke ferroelectric-paraelectric na ihe dị n'ime ihe dị iche iche nke ogo iri dị elu karịa Curie okpomọkụ, na ime ụlọ okpomọkụ resistivity na-abawanye nke ọma site na ọtụtụ iwu nke ịdị ukwuu. N'iji ọrụ a rụọ ọrụ, a na-eji ihe ndị seramiiki na-ekpo ọkụ na-edozi ya na BaTiO3 nano ntụ ntụ na ngwaọrụ nchekwa ekwentị na-achịkwa mmemme, ndị na-amalite engine ụgbọ ala, akpaaka degaussers maka TV agba, ndị na-amalite maka compressors refrjiraeto, ihe mmetụta okpomọkụ, na ihe nchebe ọkụ, wdg.

2. Ngwa nke barium titanate nano

Barium titanate bụ ahụ ọkụ eletrik siri ike nke atọ achọpụtara ọhụrụ ka usoro nnu abụọ nke potassium sodium tartrate na ahụ ọkụ eletrik siri ike nke sistemụ calcium phosphate gasịrị. N'ihi na ọ bụ ụdị ọhụrụ nke ọkụ eletrik dị ike nke na-adịghị edozi na mmiri ma nwee ezigbo nkwụsị ọkụ, ọ nwere uru bara uru dị ukwuu, karịsịa na teknụzụ semiconductor na teknụzụ mkpuchi.

Dịka ọmụmaatụ, kristal ya nwere oke dielectric na-agbanwe agbanwe na nke na-agbanwe agbanwe, a na-ejikwa ya dị ka obere olu, nnukwu ikike microcapacitors na ihe nkwụghachi okpomọkụ.

Ọ nwere ihe ọkụ eletrik kwụsiri ike. Enwere ike iji ya na-emepụta ihe ndị na-adịghị ahụ anya, ihe ndị na-emepụta dielectric na ihe nchekwa kọmputa kọmputa (ncheta), wdg. , na ultrasonic generators.

Na mgbakwunye, enwere ike iji ya rụpụta ihe ngbanwe electrostatic, inverters, thermistors, photoresistors na akụrụngwa teknụzụ eletrọnịkị dị mkpa.

Nano barium titanatebụ ihe bụ isi akụrụngwa nke seramiiki eletrọnịkị, nke a maara dị ka ogidi ụlọ ọrụ seramiiki eletrọnịkị, ma bụrụkwa otu n'ime ihe ndị a na-ejikarị na nke kachasị mkpa na seramiki eletrọnịkị. Ka ọ dị ugbu a, ejirila ya nke ọma na PTC thermistors, multilayer ceramic capacitors (MLCC), pyroelectric element, piezoelectric ceramics, sonar, infrared radiation detection elements, crystal ceramic capacitors, electro-optic display panels, memory materials, semiconductor material, electrostatic transformers. , dielectric amplifiers, ugboro converters, na-echeta, polymer matrix composites na mkpuchi, wdg.

Site na mmepe nke ụlọ ọrụ eletrọnịkị, iji barium titanate ga-abawanye ụba.

3. Nano barium titanate emeputa-Hongwu Nano

Guangzhou Hongwu Material Technology Co., Ltd. nwere ogologo oge ma kwụsie ike nke nano barium titanate powders dị elu na batches nwere ọnụ ahịa asọmpi. Ma akụkụ cubic na tetragonal dị, yana nha nha nha 50-500nm.