Masayendisiti Anowana Magnetic Nanopowder ye6G Technology
Newswise - Material masayendisiti akagadzira nzira inokurumidza yekugadzira epsilon iron oxide uye yakaratidza vimbiso yayo kune inotevera-chizvarwa midziyo yekutaurirana.Yayo yakatanhamara magineti zvimiro inoita kuti ive chimwe chezvinhu zvinoshuvira zvakanyanya, senge iri kuuya 6G chizvarwa chemidziyo yekutaurirana uye yekugara magineti kurekodha.Basa racho rakabudiswa mu Journal of Materials Chemistry C, bhuku reRoyal Society of Chemistry. Iron oxide (III) ndeimwe yemaokisi akapararira kwazvo paNyika.Inonyanya kuwanikwa semineral hematite (kana alpha iron oxide, α-Fe2O3).Imwe shanduko yakagadzikana uye yakajairika ndeye maghemite (kana gamma shanduko, γ-Fe2O3).Iyo yekutanga inoshandiswa zvakanyanya muindasitiri seye pigment tsvuku, uye iyo yekupedzisira senge magineti yekurekodha medium.Iwo maviri magadzirirwo anosiyana kwete chete mukristaro chimiro (alpha-iron oxide ine hexagonal syngony uye gamma-iron oxide ine cubic syngony) asiwo mune magineti zvinhu. Pamusoro pemhando idzi dzesimbi oxide (III), kune mamwe magadzirirwo ekunze akadai se epsilon-, beta-, zeta-, uye kunyange magirazi.Chikamu chinoyevedza chinonzi epsilon iron oxide, ε-Fe2O3.Iyi gadziriso ine yakanyanyisa kumanikidza simba (kugona kwechinyorwa kupikisa rekunze remagineti).Simba rinosvika 20 kOe pane tembiricha yekamuri, iyo inofananidzwa neiyo paramita yemagineti yakavakirwa pane inodhura isingawanzo-yepasi zvinhu.Pamusoro pezvo, zvinhu zvacho zvinotora mwenje wemagetsi mu sub-terahertz frequency range (100-300 GHz) kuburikidza nekuita kwechisikigo ferromagnetic resonance.Kuwanda kweiyo resonance ndeimwe yemaitiro ekushandiswa kwezvinhu mumidziyo yekutaurirana isina waya - iyo 4G. chiyero chinoshandisa megahertz uye 5G inoshandisa makumi egigahertz.Pane zvirongwa zvekushandisa iyo sub-terahertz renji senge rekushanda muchizvarwa chechitanhatu (6G) isina waya tekinoroji, iyo iri kugadzirirwa inoshingaira sumo muhupenyu hwedu kubva kutanga kwa2030s. Izvo zvinoguma zvaitika zvakakodzerwa nekugadzirwa kwemayuniti ekushandura kana maabsorber circuits pane aya mafrequencies.Semuenzaniso, nekushandisa composite ε-Fe2O3 nanopowders zvinogoneka kugadzira pendi inotora masaisai emagetsi uye nokudaro kudzivirira makamuri kubva kumasaini ekunze, uye kudzivirira masaini kubva pakubata kubva kunze.Iyo ε-Fe2O3 pachayo inogona zvakare kushandiswa mu6G yekugamuchira michina. Epsilon iron oxide imhando isingawanike uye yakaoma yesimbi oxide kuwana.Nhasi, inogadzirwa muzvikamu zviduku zvikuru, uye nzira yacho pachayo inotora kusvika kumwedzi.Izvi, zvechokwadi, zvinorambidza kushandiswa kwayo kwakapararira.Vanyori vechidzidzo vakagadzira nzira yekumhanyisa synthesis ye epsilon iron oxide inokwanisa kudzikisa synthesis nguva kune rimwe zuva (kureva, kuita kutenderera kuzere kwekanopfuura ka30 nekukurumidza!) uye kuwedzera huwandu hwechigadzirwa chinobuda. .Iyo tekinoroji iri nyore kubereka, yakachipa uye inogona kushandiswa zviri nyore muindasitiri, uye zvinhu zvinodiwa pakugadzira - iron uye silicon - zviri pakati pezvakawanda zvinhu paPasi. "Kunyangwe chikamu che epsilon-iron oxide chakawanikwa chakachena kare kare, muna 2004, haisati yawana kushandiswa kwemaindasitiri nekuda kwekuoma kwekugadzirwa kwayo, semuenzaniso senge svikiro rekurekodha remagineti. Takakwanisa kurerutsa. tekinoroji zvakanyanya, "anodaro Evgeny Gorbachev, mudzidzi wePhD muDhipatimendi reZvishandiso Sayenzi paMoscow State University uye munyori wekutanga webasa racho. Kiyi yekubudirira kwekushandisa kwezvinhu zvine rekodhi-kutyora maitiro ndeyekutsvagisa mune yavo yakakosha zvimiro zvemuviri.Pasina kudzidza kwakadzama, zvinyorwa zvinogona kukanganwika zvisina kufanira kwemakore mazhinji, sezvakamboitika kanopfuura kamwe munhoroondo yesainzi.Yakanga iri tandem yezvigadzirwa zvesainzi kuMoscow State University, iyo yakagadzira komboni, uye fizikisi paMIPT, vakaidzidza zvakadzama, vakaita kuti budiriro ibudirire.
Nguva yekutumira: Jun-28-2021