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Mukusimudzira kwakakosha mumunda wesainzi yezvinhu, vaongorori vakaita nhanho mukugadzirwa kwepamusoro-kuchena α-Al2O3 (alpha-alumina), chinhu chinozivikanwa nehunhu hwayo hunoshamisa uye mashandisirwo akasiyana-siyana. Izvi zvinouya mushure mezvakambotaurwa naAmrute et al. mumushumo wavo wa2019, wakataura kuti hapana nzira dziripo dzinogona kuburitsa α-Al2O3 ine hutsanana hwepamusoro uye nzvimbo dzepamusoro dzinopfuura mamwe maburi. Zvavakawana zvakasimudza kushushikana pamusoro pekudzivirirwa kwemaitiro ekugadzira aripo uye zvinorehwa nemaindasitiri anovimba nezvakakosha izvi.
Alpha-alumina imhando yealuminium oxide inokosheswa zvakanyanya nekuoma kwayo, kugadzikana kwekupisa, uye magetsi ekudzivirira. Inoshandiswa zvakanyanya mumashandisirwo akasiyana siyana, kusanganisira ceramics, abrasives, uye se substrate mumidziyo yemagetsi. Iko kudiwa kwepamusoro-kuchena α-Al2O3 kwave kuri kuwedzera, kunyanya muminda yemagetsi uye maceramics epamusoro, uko kusvibiswa kunogona kukanganisa zvakanyanya kushanda uye kuvimbika.
Chirevo che2019 naAmrute et al. yakaratidza matambudziko anosanganikwa nawo nevaongorori nevagadziri mukuwana mazinga anodiwa ekuchena uye maitiro enzvimbo. Vakacherekedza kuti nzira dzechinyakare, senge sol-gel maitiro uye hydrothermal synthesis, kazhinji inokonzeresa zvinhu izvo zvakadonha padanho repamusoro rinodiwa pakucheka-kumucheto kunyorera. Kupikiswa uku kwakaunza chipingamupinyi kune hunyanzvi uye budiriro mumaindasitiri akati wandei epamusoro-tech.
Zvisinei, kufambira mberi kwemazuva ano kwakatanga kugadzirisa matambudziko aya. Kushandirapamwe kutsvagisa kuedza kunosanganisira masayendisiti kubva kumasangano akawanda anotungamira kwatungamira mukugadzirwa kweinoveli synthesis nzira inosanganisa hunyanzvi hwepamberi kugadzira yakakwirira-kuchena α-Al2O3 ine nzvimbo dzakavandudzwa zvakanyanya. Iyi nzira nyowani inoshandisa musanganiswa weiyo microwave-inobatsira synthesis uye inodzorwa calcination maitiro, ichibvumira kudzora zvirinani pamusoro pezvinhu zvezvinhu.
Vatsvakurudzi vakashuma kuti nzira yavo haina kungowana kuchena kwepamusoro asiwo yakakonzera α-Al2O3 ine nzvimbo dzepamusoro dzakapfuura dzakambotaurwa mumabhuku. Kubudirira uku kune mukana wekuvhura nzira nyowani dzekushandisa α-Al2O3 mumashandisirwo akasiyana siyana, kunyanya muchikamu chemagetsi, uko kudiwa kwezvinhu zvepamusoro-soro kuri kuramba kuchiwedzera.
Pamusoro pemashandisirwo ayo mumagetsi, kuchena kwepamusoro α-Al2O3 yakakoshawo mukugadzirwa kwemakeramiki epamusoro, ayo anoshandiswa mumaindasitiri akasiyana siyana, anosanganisira aerospace, mota, uye biomedical. Iko kugona kugadzira α-Al2O3 ine yakakwidziridzwa zvivakwa kunogona kutungamira mukugadzirwa kwezvinhu zvitsva izvo zvakareruka, zvakasimba, uye zvinoramba kupfekwa nekuora.
Zvinorehwa netsvagurudzo iyi zvinopfuura kungogadzirwa kwezvinhu. Iko kugona kugadzira yakakwirira-kuchena α-Al2O3 ine yakagadziridzwa nzvimbo dzepamusoro zvinogona zvakare kutungamirira kufambiro mberi mu catalysis uye kwezvakatipoteredza mashandisirwo. Semuyenzaniso, α-Al2O3 inowanzo shandiswa sechitsigiro chinokonzeresa mukuita kwemakemikari, uye kusimudzira zvivakwa zvayo kunogona kuvandudza mashandiro uye kushanda kweakasiyana siyana maitiro.
Zvakare, iyo itsva synthesis nzira inogona kuvhura nzira yekuwedzera tsvakiridzo mune mamwe maaruminiyamu oxide zvikamu uye zvavanogona kushandisa. Sezvo vaongorori vachiramba vachiongorora zvimiro uye maitiro ezvishandiso izvi, pane kufarira kuri kukura mukushandiswa kwavo mukuchengetedza simba, kugadzirisa kwezvakatipoteredza, uye kunyangwe mukuvandudza mabhatiri echizvarwa chinotevera.
Zvakawanikwa kubva kutsvagurudzo iyi yazvino zvakaburitswa mugwaro resainzi rinotungamira, kwavakawana kutariswa kubva kumatunhu edzidzo nemaindasitiri. Nyanzvi mumunda dzakarumbidza basa sedanho rakakosha kumberi mukukunda zvipingamupinyi zvakaonekwa naAmrute et al. uye vakaratidza tarisiro nezveramangwana re-α-Al2O3 kugadzirwa.
Sezvo kudiwa kwezvinhu zvekushanda kwepamusoro kuri kuramba kuchikura, kugona kugadzira yakakwira-kuchena α-Al2O3 ine zvivakwa zvakasimudzirwa kuchave kwakakosha. Kubudirira uku hakungogadzirise matambudziko akaoneswa mukutsvagurudza yapfuura asi zvakare inoisa nhanho yekuwedzera hunyanzvi mune zvesainzi. Kudyidzana pakati pevatsvakurudzi nevane chekuita neindasitiri kuchave kwakakosha mukuturikira zvakawanikwa izvi kuita mashandisirwo anoshanda anogona kubatsira zvikamu zvakasiyana-siyana.
Mukupedzisa, kufambira mberi kwazvino mukugadzirwa kwepamusoro-kuchena α-Al2O3 inomiririra chiitiko chakakosha musainzi yezvinhu. Nekukunda zvipingamupinyi zvakaonekwa muzvidzidzo zvekare, vaongorori vakavhura mikana mitsva yekushandiswa kwezvinhu izvi zvakasiyana-siyana mumhando dzakasiyana-siyana dzepamusoro-soro. Sezvo munda uchiramba uchishanduka, zviri pachena kuti remangwana re-α-Al2O3 uye mabviro ayo ane chivimbiso chikuru chekuvandudza nekusimudzira mumaindasitiri akawanda.
Nguva yekutumira: Zvita-26-2024
