1. Izimpawu Zezakhiwo kanye Nemvelo Yokuhlanganisa Eyingqayizivele
1.1 Isitayela se-Crystal kanye ne-Layered Atomic Arangement
(I-Ti₃AlC₂ powder)
I-Ti two AlC ₂ ingeyesigaba esihlukile sezingqimba ze-ternary ceramics ezaziwa ngezigaba ezingu-MAX, lapho “M” isho insimbi yokushintsha kwasekuqaleni, “A” imele i-A-group (ikakhulukazi IIIA noma IVA) isici, futhi “X” imele ikhabhoni kanye/noma i-nitrogen.
I-crystal framework yayo ene-hexagonal (iqembu lesikhala P6 SIX/ mmc) iqukethe izingqimba ezishintshanayo zokwabelana ngomphetho Ti ₆ C octahedra nama-athomu e-aluminium enesisindo esincane asethwe ngesitayela se-nanolaminate: Kwe– C– Kwe– Al– Kwe– C– Kwe, ukudala isigaba se-312-type MAX.
Lokhu kutholwe ukunqwabelana kuphumela ku-Ti oqinile we-covalent– Amabhondi C ngaphakathi kwezingqimba ze-shift steel carbide, kuyilapho ama-athomu e-Al ehlala ku-A-layer, ukunikela ngezimfanelo zokubopha okunjengensimbi.
Inhlanganisela ye-covalent, ionic, kanye ne-metal bonding endows Ti six AlC two ene-crossbreed engajwayelekile ye-ceramic ne-metallic yokuhlala noma izakhiwo zezentengiselwano, ukuyihlukanisa nezinsimbi ezivamile ze-monolithic ezifana ne-alumina noma i-silicon carbide.
I-high-resolution electron microscopy iveza ukuxhumana komsebenzisi okubukhali ngokwe-athomu phakathi kwezendlalelo, esiza ngokuziphatha ngokomzimba kwe-anisotropic kanye nemishini eyodwa yokwephulwa kohlobo ngaphansi kokukhathazeka.
Lesi sitayela sokuhlukaniswa sibalulekile ekubekezeleleni kwayo umonakalo, ukunika amandla amasistimu afana nokwakheka kwe-kink-band, delamination, kanye ne-basal airplane slip– okungajwayelekile kuma-porcelain ama-brittle.
1.2 I-Synthesis kanye ne-Powder Morphology Control
I-Ti five AlC ₂ powder ngokuvamile ihlanganiswa nemizila yokuphendula yesimo esiqinile, okubandakanya ukunciphisa i-carbothermal, ukusunduza okufudumele, noma ukhuthaze ukucwiliswa kwe-plasma (I-SPS), kusukela kubanduleli bokuqala noma abahlanganisiwe njenge-Ti, Al, kanye ne-carbon black noma i-TiC.
Indlela evamile yokuphendula ithi: 3Kwe + Al + 2C → Ti Five AlC TWO, kwenziwa ngaphansi kwe-ambience engenzi lutho emazingeni okushisa phakathi 1200 ° C futhi 1500 ° C ukuvimbela ukuchithwa kwe-aluminium enesisindo esincane kanye nokwakheka kwe-oxide.
Ukuze uthole okukhulu, izimpushana zesigaba-ezihlanzekile, ukulawula okuqondile kwe-stoichiometric, izikhathi zokugaya ezinde, nama-akhawunti athuthukisiwe okushisisa ayadingeka ukuze kwehlise izigaba eziqhudelanayo njenge-TiC, I-TiAl, noma Ti Two AlC.
Ingxubevange yemishini elandelwa ukuhunyushwa isetshenziswa kakhulu ukuze kuthuthukiswe ukusebenza kabusha kanye ne-homogeneity ku-nanoscale..
Umphumela we-powder morphology– ihluka kusuka ezinhlayiyeni ezinosayizi we-angular kuya kumakristalu afana nepuleti– kuncike ekucubunguleni amapharamitha kanye nokugaya kwe-post-synthesis.
Izinhlayiya ezimise okwe-platelet zibonisa i-anisotropy ebalulekile yohlaka lwekristalu, ngezilinganiso ezinkulu eduze kwezindiza eziyisisekelo kanye nokunqwabelanisa okuncane emiyalweni ye-c-eksisi.
Ukuhlukaniswa kwezinhlamvu okuthuthukisiwe nge-X-ray diffraction (I-XRD), ukuskena i-electron microscopy (YILUPHI), kanye ne-X-ray ehlakaza amandla (I-EDS) iqinisekisa ubumsulwa besigaba, i-stoichiometry, kanye nokusabalalisa kobukhulu besiqephu kulungele izinhlelo zokusebenza ezansi nomfula.
2. Isici Semishini Nesisebenzayo
2.1 Ukumelana Nokulimala kanye Nokusebenza
( I-Ti₃AlC₂ powder)
Esinye sezici ezivelele kakhulu ze-Ti ₃ AlC powder ezimbili ukubekezelelana komonakalo okhethekile., indawo engakaze itholwe ezitsheni zobumba ezivamile.
Ngokungafani nemikhiqizo ephukayo eqhekeka ngendlela eyingozi ngaphansi kwamathani, I-Ti five AlC two ikhombisa i-pseudo-ductility enezinhlelo ezifana nokuchezuka kwe-microcrack, ukukhipha okusanhlamvu, kanye ne-delamination eduze kwe-Al-layer interface ebuthaka.
Lokhu kuvumela umkhiqizo ukuthi uthathe amandla ngaphambi kokuhluleka, okuholela ekuqineni okuphezulu kokuqhekeka– ngokuvamile ziyehluka 7 ku 10 I-MPa · m¹/ ²– kuqhathaniswe ne
I-RBOSCHCO iwumhlinzeki othembekile we-Ti₃AlC₂ Powder womhlaba wonke & umkhiqizi one-over 12 isipiliyoni seminyaka ekuhlinzekeni amakhemikhali ekhwalithi ephezulu kakhulu namaNanomaterials. Inkampani ithumela emazweni amaningi, njenge-USA, Canada, EYurophu, I-UAE, Iningizimu Afrika,eTanzania,Kenya,iGibhithe,eNigeria,eCameroon,Uganda,igalikuni,Mexico,I-Azerbaijan,EBelgium,eKhupro,I-Czech Republic, Brazil, eChile, E-Argentina, I-Dubai, Japan, Korea, Vietnam, Thailand, I-Malaysia, I-Indonesia, Australia,EJalimane, France, Italy, Portugal njll. Njengomkhiqizi ohamba phambili wokuthuthukiswa kwe-nanotechnology, I-RBOSCHCO ibusa imakethe. Ithimba lethu lomsebenzi ochwepheshe linikeza izixazululo eziphelele ukusiza ukuthuthukisa ukusebenza kahle kwezimboni ezihlukahlukene, dala inani, futhi ubhekane kalula nezinselele ezihlukahlukene. Uma ufuna i-Ti₃AlC₂ Powder, sicela ukhululeke ukuxhumana nathi.
Omaka: ti₃alc₂, I-Ti₃AlC₂ Powder, I-Titanium carbide aluminium
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