1. Iimpawu zoBugcisa kunye neNdawo eyodwa yoBonding
1.1 Isitayile seCrystal kunye noLungiselelo lweAtom eLayered
(Ti₃AlC₂ umgubo)
I-Ti two AlC ₂ yeyodidi olwahlukileyo lweeseramikhi ze-ternary ezaziwa ngokuba ngamanqanaba MAX, apho “M” ibonisa intsimbi yokutshintsha kwangoko, “A” imele i A-iqela (ubukhulu becala IIIA okanye IVA) isiqalelo, kwaye “X” imele ikhabhoni kunye/okanye initrogen.
Isakhelo sekristale esinehexagonal (iqela lesithuba P6 SIX/ mmc) iqulathe iileya ezitshintshanayo zokwabelana ngomphetho Ti ₆ C octahedra kunye ne-athomu ye-aluminiyam enobunzima obukhanyayo obumiselwe kwisitayile se-nanolaminate: Kwe– C– Kwe– Al– Kwe– C– Kwe, ukudala 312-uhlobo MAX isigaba.
Oku kufunyenwe iziphumo zokupakisha kwi-covalent eqinile Ti– C iibhondi ngaphakathi shift steel carbide maleko, ngelixa ii-athom ze-Al zihlala kwi-A-layer, igalelo kwiimpawu zokudityaniswa kwesinyithi.
Indibaniselwano ye-covalent, ionic, kunye nentsimbi yokudibanisa i-endows Ti ezintandathu AlC zimbini kunye ne-crossbreed engaqhelekanga ye-ceramic kunye nentsimbi yokuhlala okanye iipropati zorhwebo., ukuyohlula kwiiseramikhi eziqhelekileyo ze-monolithic ezifana ne-alumina okanye i-silicon carbide.
Imakroskopu ye-electron enesisombululo esiphezulu iveza ujongano lomsebenzisi olubukhali ngeathom phakathi kwamaleya, ezinceda ngokuziphatha komzimba kwe-anisotropic kunye nezixhobo zokuguqula enye-zohlobo phantsi koxinzelelo.
Esi simbo sokwahlula sibalulekile ekunyamezeleni umonakalo, iinkqubo ezivumelayo ezifana nokwakhiwa kwe-kink-band, delamination, kunye ne-basal airplane slip– ingaqhelekanga kwiiporcelains ezinqabileyo.
1.2 Ulungelelwaniso kunye noLawulo lwePowder Morphology
I-Ti emihlanu ye-AlC ₂ powder idla ngokudityaniswa kunye neendlela zokuphendula eziqinileyo, ebandakanya ukunciphisa i-carbothermal, ukutyhala okushushu, okanye ukuvuselela ukucolwa kweplasma (SPS), ukuqala kubanduleli be-elemental okanye bekhompawundi abanjengoTi, Al, kunye nekhabhoni emnyama okanye iTiC.
Indlela eqhelekileyo yokuphendula yile: 3Kwe + Al + 2C → Ti Five AlC TWO, iqhutywe phantsi kwe-ambience engenzi nto kumaqondo obushushu phakathi 1200 ° C kunye 1500 ° C ukuthintela ukuchithwa kwe-aluminium ubunzima kunye nokwakheka kwe-oxide.
Ukuze ufumane okukhulu, izigaba-ezicocekileyo zomgubo, ulawulo oluchanekileyo lwe-stoichiometric, ixesha lokusila elide, kunye neeakhawunti zokufudumeza zasekhaya eziphuculweyo ziyimfuneko ukoyisa izigaba ezikhuphisanayo njenge-TiC, I-TiAl, okanye Ti Two AlC.
I-Mechanical alloying ebambelele kuyo isetyenziswa kakhulu ukunyusa ukusebenza kwakhona kunye ne-homogeneity kwi-nanoscale..
Isiphumo sokwakheka komgubo– ezahlukeneyo ukusuka kwi-angular micron-ubungakanani amasuntswana ukuya kwipleyiti-like crystallites– kuxhomekeke kwiparameters processing and post-synthesis grinding.
Iingqungquthela ezibunjwe ngePlatelet zibonisa i-anisotropy edibeneyo yesakhelo se-crystal, kunye nemilinganiselo emikhulu ecaleni kweenqwelomoya ezisisiseko kunye nemfumba ebhityileyo kwimiyalelo ye-c-axis.
Ubume obukwinqanaba eliphezulu ngokusebenzisa i-X-reyi diffraction (XRD), ukuskena i-electron microscopy (YILUPHI), kunye ne-X-reyi ye-energy dispersive spectroscopy (I-EDS) iqinisekisa ubunyulu besigaba, stoichiometry, kunye nokuhanjiswa komlinganiselo weqhekeza ngokufanelekileyo kwizicelo ezisezantsi.
2. Mechanical and Practical Feature
2.1 Ukuchasana nomonakalo kunye nokuSebenza
( Ti₃AlC₂ umgubo)
Enye yezona zinto zibalaseleyo ze-Ti ₃ AlC i-powder ezimbini kukunyamezela komonakalo., ipropathi engazange ifunyanwe kwiiseramikhi eziqhelekileyo.
Ngokungafaniyo neemveliso ezinqabileyo eziqhekezayo phantsi kweetoni, I-Ti ezintlanu i-AlC zimbini zibonisa i-pseudo-ductility eneenkqubo ezinjenge-microcrack deflection, ukutsalwa kweenkozo, kunye ne-delamination ecaleni kojongano olubuthathaka lwe-Al-layer.
Oku kuvumela imveliso ukuba ithathe amandla phambi kokusilela, kukhokelela ekomeleleni okuphezulu kokuqhekeka– eyohluka ngokubanzi ukusuka 7 ukuya 10 MPa · m¹/ ²– ngokuchaseneyo ne
I-RBOSCHCO ngumthengisi othembekileyo we-Ti₃AlC₂ wePowder yehlabathi jikelele & umenzi nge over 12 iminyaka yamava ekuboneleleni ngeekhemikhali ezikumgangatho ophezulu kunye neeNanomaterials. Inkampani ithumela kumazwe amaninzi, njenge-USA, Khanada, IYurophu, I-UAE, Mzantsi Afrika,Thanzaniya,Khenya,Jiphethe,Nayijeriya,Khameruni,Yuganda,Thekhi,Mekhsikho,Azerbayijani,Bheljiyam,Sayiprasi,Umphakathi waseCzech, Brazil, Tshile, Ajentina, Dubai, Japhan, eKorea, Viyethnam, Thayilendi, Maleyishiya, Indoneshiya, Ostreliya,Jemani, Fransi, ElamaTaliyane, IPortugal njl. Njengomvelisi ophambili wophuhliso lwe-nanotechnology, I-RBOSCHCO iyongamela imarike. Iqela lethu lomsebenzi weengcali libonelela ngezisombululo ezigqibeleleyo zokunceda ukuphucula ukusebenza kakuhle kwamashishini ahlukeneyo, yenza ixabiso, kwaye umelane ngokulula nemingeni eyahlukeneyo. Ukuba ujonge iTi₃AlC₂ Powder, nceda uzive ukhululekile ukuqhagamshelana nathi.
Iithegi: ti₃alc₂, I-Ti₃AlC₂ Umgubo, Titanium carbide aluminiyam
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