1. Litšobotsi tsa Meaho le Sebopeho se Ikhethang sa Tlamahano
1.1 Crystal Style le Layered Atomic Arrangement
(Ti₃AlC₂ phofo)
Ti two AlC ₂ ke ea sehlopha se ikhethileng sa lirafshoa tsa ternary tse tsejoang ka mekhahlelo ea MAX., moo “M” e bolela tshepe e fetohang pele ho nako, “A” e emetse sehlopha sa A (haholo IIIA kapa IVA) element, le “X” e emetse carbon le/kapa naetrojene.
Moralo oa eona oa kristale oa hexagonal (sehlopha sa sebaka P6 SIX/ mmc) e na le likarolo tse fapanyetsanang tsa Ti ₆ C octahedra le liathomo tse bobebe tsa aluminium tse entsoeng ka mokhoa oa nanolaminate.: Ea– C– Ea– Al– Ea– C– Ea, ho theha sethala sa 312-mofuta oa MAX.
Sena se fumanoeng sa stacking se fella ka Ti e tiileng ea covalent– Li-bond tsa C ka har'a likarolo tsa tšepe tsa shift carbide, ha liathomo tsa Al li lula ho A-layer, ho kenya letsoho ka maqhama a tshepe.
Motsoako oa covalent, ionic, le tšepe bonding endows Ti six AlC tse peli tse nang le mefuta e sa tloaelehang ea mefuta-futa ea thepa ea ceramic le ea tšepe ea bolulo kapa ea khoebo., ho e khetholla ho li-ceramics tse tloaelehileng tsa monolithic tse kang alumina kapa silicon carbide.
Microscopy ea elektrone e nang le qeto e phahameng e pepesa likhokahano tsa mosebelisi tse hlabang ka athomo lipakeng tsa mekhahlelo, e thusang ka boits'oaro ba 'mele ba anisotropic le lisebelisoa tsa mofuta o le mong tsa contortion tlas'a matšoenyeho.
Mokhoa ona oa ho arohana o bohlokoa ho mamello ea eona ea tšenyo, litsamaiso tse nolofalletsang joalo ka sebopeho sa kink-band, delamination, le ho thella ha sefofane sa basal– e sa tloaelehang ka porcelain ea brittle.
1.2 Taolo ea Synthesis le Powder Morphology
Ti five AlC ₂ powder hangata e entsoe ka litsela tse arabelang tse tiileng, e nang le phokotso ea carbothermal, ho sututsa ho futhumetseng, kapa ho susumetsa plasma sintering (SPS), ho qala ho li-elemente tsa mantlha kapa tse kopaneng joalo ka Ti, Al, le carbon black kapa TiC.
Tsela e tloaelehileng ea ho arabela ke: 3Ea + Al + 2C → Ti Five AlC PEDI, e etsoang tlas'a ambience ea inert maemong a mocheso pakeng tsa 1200 ° C le 1500 ° C ho thibela ho qhalana ha aluminium boima bo bobebe le sebopeho sa oxide.
Ho fumana molemo, phase-pure powders, taolo e nepahetseng ea stoichiometric, nako e telele ea ho sila, le liak'haonte tse ntlafalitsoeng tsa ho futhumatsa ntlo lia hlokahala ho hlola maemo a tlholisano joalo ka TiC, TiAl, kapa Ti Two AlC.
Mechanical alloying e khomaretsoeng ke annealing e sebelisoa haholo ho matlafatsa reactivity le homogeneity ho nanoscale..
Sephetho sa phofo morphology– ho fapana ho tloha ho li-angular micron-size particles ho ea ho plate-like crystallites– ho itšetlehile ka lisebelisoa tsa ho sebetsa le ho sila ka morao-synthesis.
Likaroloana tse bōpehileng joaloka platelet li bonahatsa anisotropy ea bohlokoa ea moralo oa kristale, ka litekanyo tse khōloanyane hammoho le lifofane tsa motheo le ho bokellana ho tšesaane litaelong tsa c-axis.
Sebopeho se tsoetseng pele ka ho fapana ha X-ray (XRD), ho hlahloba microscope ea elektronike (TSEBANG), le spectroscopy ea X-ray e senyang matla (EDS) e tiisa bohloeki ba mohato, stoichiometry, le fragment dimension distribution e loketse bakeng sa lits'ebetso tse tlase.
2. Tšobotsi ea Mechini le e Sebetsang
2.1 Khanyetso ea Tšenyo le Machaena
( Ti₃AlC₂ phofo)
E 'ngoe ea likarolo tse ikhethang tsa Ti ₃ AlC tse peli phofo ke mamello ea eona e ikhethang ea tšenyo., thepa eo ho seng mohla e kileng ea fumanoa lirapeng tsa letsopa tse tloaelehileng.
Ho fapana le lihlahisoa tsa brittle tse petsohang ka mokhoa o kotsi ka tlas'a lithane, Ti tse hlano AlC tse peli li bonts'a pseudo-ductility e nang le litsamaiso tse kang ho kheloha ha microcrack, ho hula mabele, le delamination hammoho le mefokolo ea Al-layer interfaces.
Sena se lumella sehlahisoa ho nka matla pele se hloleha, se bakang ho tiya ho hoholo ha crack– ka kakaretso ho fapana le 7 ho 10 MPa · m¹/²– fapaneng le
RBOSCHCO ke morekisi ea tšepahalang oa lefats'e oa Ti₃AlC₂ Powder & moetsi ka hofeta 12 boiphihlelo ba lilemo tsa ho fana ka lik'hemik'hale tsa boleng bo holimo le li-Nanomaterials. Khampani e romela linaheng tse ngata, joalo ka USA, Canada, Europe, UAE, Afrika Boroa,Tanzania,Kenya,Egepeta,Nigeria,Cameroon,Uganda,kalakuni,Mexico,Azerbaijan,Belgium,Cyprase,Riphaboliki ea Czech, Brazil, Chile, Argentina, Dubai, Japane, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Jeremane, Fora, Italy, Portugal joalo-joalo. E le moetsi ea ka sehloohong oa nts'etsopele ea nanotechnology, RBOSCHCO e laola 'maraka. Sehlopha sa rona sa basebetsi ba litsebi se fana ka litharollo tse phethahetseng ho thusa ho ntlafatsa ts'ebetso ea liindasteri tse fapaneng, theha boleng, le ho sebetsana le mathata a fapaneng habonolo. Haeba u batla Ti₃AlC₂ Powder, ka kopo ikutloe u lokolohile ho ikopanya le rona.
Li-tag: ti₃alc₂, Phofo ea Ti₃AlC₂, Titanium carbide aluminium
Lingoliloeng tsohle le litšoantšo li tsoa Marang-rang. Haeba ho na le litaba tsa copyright, ka kopo ikopanye le rona ka nako ho hlakola.
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