1. Makhalidwe Omanga ndi Chikhalidwe Chapadera Chomangirira
1.1 Mawonekedwe a Crystal ndi Makonzedwe a Atomiki a Layered
(Ti₃AlC₂ ufa)
Ti two AlC ₂ ndi m'gulu lapadera la zoumba ternary zosanjikiza zomwe zimadziwika kuti MAX magawo., ku “M” imayimira chitsulo chosinthira koyambirira, “A” imayimira gulu la A (kwambiri IIIA kapena IVA) chinthu, ndi “X” imayimira kaboni ndi/kapena nayitrogeni.
Mawonekedwe ake a hexagonal crystal framework (gulu la danga P6 SIX/ mmc) ili ndi magawo osinthika a Ti ₆ C octahedra ndi maatomu a aluminiyamu opepuka omwe amakhazikitsidwa motengera kalembedwe ka nanolaminate: Za– C– Za– Al– Za– C– Za, kupanga gawo la 312-mtundu wa MAX.
Izi zapeza kutukuka kumabweretsa kulimba kolimba Ti– C zomangira mkati mwa magawo azitsulo a carbide, pamene ma atomu a Al amakhala mu A-layer, kuthandizira mawonekedwe achitsulo ngati omangirira.
Kuphatikiza kwa covalent, ionic, ndi zitsulo zomangira ma endows Ti asanu ndi limodzi AlC awiri okhala ndi mitundu yosiyanasiyana ya ceramic ndi zitsulo zokhalamo kapena zamalonda., kusiyanitsa ndi zoumba zoumba monolithic monga aluminiyamu kapena silicon carbide.
Ma electron microscopy yowoneka bwino kwambiri imawulula mawonekedwe akuthwa kwa atomu pakati pa zigawo, zomwe zimathandiza ndi machitidwe a anisotropic ndi zida zamtundu umodzi wamtundu womwe umakhudzidwa ndi nkhawa.
Mtundu wogawanika uwu ndi wofunikira pakulekerera kwake kuwonongeka, zopangitsa machitidwe monga kink-band mapangidwe, delamination, ndi kutsetsereka kwa ndege ya basal– zachilendo mu brittle porcelains.
1.2 Kaphatikizidwe ndi Powder Morphology Control
Ti five AlC ₂ ufa nthawi zambiri amapangidwa ndi njira zoyankhira zolimba, kuphatikiza kuchepetsa carbothermal, kukankha kofunda, kapena kuyambitsa plasma sintering (SPS), kuyambira pa oyambira kapena apawiri oyamba monga Ti, Al, ndi carbon wakuda kapena TiC.
Njira yoyankhira mwachizolowezi ndi: 3Za + Al + 2C → Ti Five AlC TWO, kuchitidwa pansi pa mlengalenga pa kutentha kwapakati 1200 °C ndi 1500 ° C kuteteza kuwala kwa aluminiyamu kutayika ndi kupanga okusayidi.
Kuti mukhale wamkulu, magawo-woyera ufa, kuwongolera kolondola kwa stoichiometric, nthawi yaitali mphero, ndi maakaunti otenthetsera kunyumba ndi ofunikira kuti athe kugonjetsa magawo opikisana ngati TiC, TiAl, kapena Ti Two AlC.
Mechanical alloying yomwe imatsatiridwa ndi annealing imagwiritsidwa ntchito kwambiri kuti ipititse patsogolo kuyambiransoko komanso homogeneity pa nanoscale..
The chifukwa ufa morphology– zosiyana kuchokera ku maang'ono ang'onoang'ono a micron-size particles mpaka ma crystallites ngati mbale– zimadalira magawo processing ndi pambuyo kaphatikizidwe akupera.
Tinthu tating'onoting'ono tomwe timakhala ngati mapulaneti timawonetsa mawonekedwe amtundu wa crystal framework, ndi miyeso yokulirapo m'mbali mwa ndege zoyambira ndikuwunjika pang'ono mu malangizo a c-axis.
Makhalidwe apamwamba kudzera mu X-ray diffraction (Zithunzi za XRD), kusanthula ma electron microscopy (CHITI), ndi mawonekedwe a X-ray otaya mphamvu (EDS) zimatsimikizira chiyero cha gawo, stoichiometry, ndi fragment dimension kugawa bwino ntchito kunsi kwa mtsinje.
2. Zimango ndi Zothandiza
2.1 Zowonongeka Kukaniza ndi Machinability
( Ti₃AlC₂ ufa)
Chimodzi mwazinthu zodziwika bwino za Ti ₃ AlC awiri ufa ndizomwe zimawononga kulolerana., chinthu chomwe sichinapezeke konse muzoumba zadothi wamba.
Mosiyana ndi zinthu zopanda pake zomwe zimasweka kwambiri pansi pa matani, Ti asanu AlC awiri amawonetsa pseudo-ductility ndi machitidwe monga microcrack deflection, kutulutsa njere, ndi delamination m'malo ofooka a Al-layer interfaces.
Izi zimalola kuti katunduyo atenge mphamvu asanalephere, kuchititsa kuti crack durability kwambiri– zambiri zosiyanasiyana 7 ku 10 MPa · m¹/²– mosiyana ndi
RBOSCHCO ndi ogulitsa odalirika padziko lonse a Ti₃AlC₂ Powder & wopanga ndi over 12 zaka zambiri popereka mankhwala apamwamba kwambiri komanso Nanomaterials. Kampaniyo imatumiza kumayiko ambiri, monga USA, Canada, Europe, UAE, South Africa,Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,nkhukundembo,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. Monga wopanga chitukuko cha nanotechnology, RBOSCHCO imalamulira msika. Gulu lathu la akatswiri ogwira ntchito limapereka mayankho abwino kwambiri othandizira kukonza magwiridwe antchito amakampani osiyanasiyana, pangani mtengo, ndi kuthana mosavuta ndi zovuta zosiyanasiyana. Ngati mukufuna Ti₃AlC₂ Powder, chonde omasuka kulankhula nafe.
Tags: ti₃alc₂, Ufa wa Ti₃AlC₂, Titanium carbide aluminium
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