1. I-Crystal Framework kanye Nemvelo Yokubopha ye-Ti ₂ AlC
1.1 Amalungu Omndeni Wesigaba Somkhawulo kanye Nochungechunge Lwe-Atomic Piling
(I-Ti2AlC MAX Phase Powder)
I-Ti ₂ AlC ingeyomndeni wesiteji wokukhawulela, isigaba se-nanolaminated ternary carbides nama-nitrides anefomula evamile ethi Mₙ ₊₁ AXₙ, lapho u-M eyinsimbi yokuqala kakhulu, U-A uyisici seqembu le-A, futhi u-X yikhabhoni noma i-nitrogen.
Ku-Ti ₂ AlC, titanium (Kwe) isebenza njengengxenye ye-M, i-aluminium (Al) njengengxenye A, kanye nekhabhoni (C) njengengxenye ye-X, ukuthuthukisa a 211 uhlaka (n=1) enezingqimba ezishintshanayo ze-Ti ₆ C octahedra kanye nama-athomu e-Al anqwabelene eduze kwe-axis ku-lattice ene-hexagonal.
Lesi sakhiwo esinezingqimba esisodwa sohlobo sihlanganisa izibopho eziqinile eziqinile ngaphakathi kwe-Ti.– Izendlalelo C ezinamabhondi ensimbi abuthaka phakathi kwezindiza ze-Ti ne-Al, okuholela ekusetshenzisweni kwe-hybrid ekhombisa kokubili izici ze-ceramic nezensimbi.
UTi– Inethiwekhi ye-C covalent inikeza ukuqina okuphezulu, ukuzinza okushisayo, kanye nokumelana ne-oxidation, kuyilapho insimbi Ti– I-Al bonding inika amandla ukuqhutshwa kukagesi, ukubekezelela ukushaqeka okushisayo, kanye nokumelana nokulimala okungajwayelekile kuma-ceramics ajwayelekile.
Lokhu kubili kuvela kumvelo ye-anisotropic yokubopha amakhemikhali, okuvumela izinhlelo zokulahla amandla ezifana nokwakheka kwe-kink-band, delamination, kanye nezindiza eziyisisekelo ezihlukana ngaphansi kokucindezeleka, esikhundleni sokulimaza ukuphuka okuphukayo.
1.2 I-Digital Framework kanye ne-Anisotropic Properties
Ukusethwa kwedijithali kwe-Ti two AlC kuhlanganisa ama-d-orbitals agqagqene asuka ku-titanium kanye ne-p-orbitals esuka ku-carbon ne-lightweight aluminium, okuholela ekushukeni okuphezulu kwezifunda ngeziqu ze-Fermi kanye nokuhamba kukagesi nokushisa okungaphakathi kwezindiza eziyisisekelo.
Lokhu conductivity metallic– engavamile emikhiqizweni ye-ceramic– ivumela izinhlelo zokusebenza kuma-electrode okushisa aphezulu, abaqoqi abakhona, kanye nokuvikela i-electromagnetic.
I-anisotropy yasekhaya ibizwa ngokuthi: ukwanda okushisayo, imoduli eguquguqukayo, futhi ukumelana kukagesi kuyahluka kakhulu phakathi kwe-axis (endizeni) kanye ne-c-eksisi (ngaphandle kwendiza) izikhombisi-ndlela ngenxa yesibopho sokuhlukaniswa.
Ngokwesibonelo, ukukhula okushisayo ngaku-c-eksisi kuncane kunokuhambisana ne-eksisi, okunomthelela ekwandiseni ukumelana nokushaqeka okushisayo.
Ngaphezu kwalokho, impahla iveza ubulukhuni beVickers obuncishisiwe (~ 4– 6 Isilinganiso sephoyinti lebanga) kuqhathaniswa nama-porcelain ajwayelekile afana ne-alumina noma i-silicon carbide, nokho igcina imodulus ephezulu Yentsha (~ 320 I-GPa), ukubukisa inhlanganisela yayo ehlukile yezimfanelo ezithambile nokuqina.
Le bhalansi yenza i-Ti ezimbili i-AlC powder ifanelekele ikakhulukazi izitsha zobumba ezisebenzisekayo kanye nezinhlanganisela ezizigcobayo.
( I-Ti2AlC MAX Phase Powder)
2. Ukwenziwa kanye Nokuphathwa Kwe-Ti Two AlC Powder
2.1 I-Solid-State kanye Namasu Athuthukile Okukhiqiza Impushana
I-Ti ₂ AlC powder ihlanganiswa kakhulu ngezimpendulo eziqinile phakathi kwama-elemental noma ama-compound precursors., njenge-titanium, i-aluminium, kanye nekhabhoni, ngaphansi kwezinkinga zokushisa okuphezulu (1200– 1500 °C )emkhathini we-inert noma we-vacuum cleaner.
Ukusabela: 2Kwe + Al + C → Ti ₂ AlC, kumele ilawulwe ngokucophelela ukugwema ukwakheka kwezigaba zokuqeda njenge-TiC, Thi Three Al, noma i-TiAl, eziphula ukusebenza okungokoqobo.
Ingxubevange yemishini enamathela ekwelapheni ngokushisa iwukusetshenziswa okwengeziwe kwesu elisetshenziswa kabanzi, lapho izimpushana ze-elemental zigaywa ngebhola ukuze kutholwe ukuxutshwa kwezinga le-athomu ngaphambi kokuhushulwa ukuze kudalwe isigaba esingu-MAX.
Le ndlela ivumela ukulawula usayizi omncane kanye ne-homogeneity, kubalulekile ezindleleni zokuhlanganisa ezintsha.
Amasu ayinkimbinkimbi, njenge-trigger plasma sintering (I-SPS), ukufakwa komhwamuko wamakhemikhali (I-CVD), kanye nosawoti oncibilikisiwe, nikeza imizila eya esigabeni-okuhlanzekile, i-nanostructured, noma ama-Ti two AlC powders aqondiswe nge-morphology enziwe ngokwezifiso.
Ukwenziwa kosawoti oncibilikisiwe, ikakhulukazi, ivumela amazinga okushisa ancishisiwe okusabela kanye nokusabalalisa okungcono kakhulu kancane ngokusebenza njengendlela yokushintsha ethuthukisa i-diffusion kinetics.
2.2 I-Powder Morphology, Ubumsulwa, kanye Nokunakekela Izinto okufanele zicatshangelwe
I-morphology ye-Ti two AlC powder– kusukela kumabhithi angama-angular angalingani kuya kuma-granules afana neplatelet noma ayindilinga– kuncike emzileni wokuhlanganisa kanye nezenzo zangemuva kokucubungula ezifana nokugaya noma isigaba.
Izinhlayiya ezimise okwe-platelet zibonisa uhlaka lwangaphakathi lwekristalu enezingqimba futhi zinenzuzo ekuqiniseni izinhlanganisela noma ekuthuthukiseni izinto eziyinqwaba..
Ubumsulwa besigaba esiphezulu bubalulekile; ngisho nenani elincane le-TiC noma i-Al two O eyisithupha yokungcola ingawushintsha kakhulu umshini, kagesi, kanye nemikhuba ye-oxidation.
I-X-ray diffraction (I-XRD) kanye ne-electron microscopy (NGAPHANDLE/UNAYO) zisetshenziswa njalo ukuhlola ukwakheka kwesigaba kanye ne-microstructure.
Ngenxa yesisindo esincane sokusebenza kabusha kwe-aluminium ne-oxygen, I-Ti ₂ AlC powder isengozini ye-oxidation yendawo, ukudala ungqimba oluncane lwe-Al ₂ O olukwazi ukudlula umkhiqizo kodwa olungase luvimbele ukuhlangana noma ukuhlangana kobuso kuzinhlanganisela.
Ngakho-ke, storage space under inert ambience and processing in regulated environments are important to preserve powder integrity.
3. Useful Behavior and Performance Mechanisms
3.1 Mechanical Durability and Damages Resistance
Among one of the most amazing features of Ti ₂ AlC is its capacity to hold up against mechanical damages without fracturing catastrophically, a residential property referred to as “damages resistance” noma “machinability” in ceramics.
Under tons, the material suits anxiety via devices such as microcracking, basic aircraft delamination, and grain limit moving, which dissipate energy and prevent fracture propagation.
This habits contrasts greatly with traditional ceramics, which generally fall short suddenly upon reaching their elastic limit.
Ti ₂ AlC components can be machined utilizing traditional tools without pre-sintering, umthamo ongajwayelekile phakathi kwezitsha zobumba ezishisa kakhulu, ukunciphisa izintengo zokukhiqiza nokwenza kube nokwenzeka kumajiyometri ayinkimbinkimbi.
Ngaphezu kwalokho, ibonisa ukumelana nokushaqeka okushisayo okuhle kakhulu ngenxa yokukhula okuphansi kwe-thermal kanye ne-conductivity ephezulu ye-thermal, ukuyenza ifanele izingxenye ezingaphansi kokulungiswa kwezinga lokushisa okusheshayo.
3.2 Ukumelana Ne-oxidation kanye Nokuphepha Kwezinga Lokushisa Eliphezulu
Emazingeni okushisa aphakeme (kangango ba 1400 ° C emoyeni), I-Ti ₂ AlC ithuthukisa i-alumina evikelayo (Kubili O THATHU) ukukala endaweni yayo, esebenza njengesithiyo sokusabalalisa ngokumelene nokufinyelela komoyampilo, kunciphisa kakhulu i-oxidation eyengeziwe.
Lokhu kuziphatha kokuzidlula kuyafana nalokho okubonwa kuma-alloys okwenza i-alumina futhi kubalulekile ekuvikelekeni kwesikhathi eside ku-aerospace kanye nezicelo zamandla..
Nokho, ngenhla 1400 °C, ukwakheka kwe-TiO two engavikeli kanye ne-oxidation yangaphakathi ye-aluminium kungabangela ukubhujiswa okusheshayo, ukukhawulela ukusetshenziswa kwe-ultra-high-temperature.
Ezilungiselelweni ezinciphayo noma ezingenzi lutho, I-Ti two AlC igcina ukusimama kwesakhiwo cishe 2000 °C, ekhombisa izibaluli ezimangalisayo zokuphikisa.
Ukumelana kwayo ne-neutron irradiation kanye nenombolo ye-athomu encishisiwe nakho kuyenza ibe umkhiqizo ozokhethwa wezingxenye ze-nuclear fusion reactor..
4. Izicelo kanye Nokwenziwa Kwezobuchwepheshe Kwesikhathi esizayo
4.1 Izingxenye Zokushisa Eziphezulu Nezakhiwo
I-Ti ₂ AlC powder isetshenziselwa ukukhiqiza i-ceramics enkulu kanye nokuqedwa kwe-atmospheres eyedlulele, ehlanganisa ama-turbine blades, umshini wokushisa, kanye nezingxenye zokushisa lapho ukumelana ne-oxidation kanye nokumelana nokushaqeka kokushisa kubalulekile.
Icindezelwe ngokushisayo noma ivuselela i-plasma sintered Ti two AlC ibonisa amandla aguquguqukayo aphezulu kanye nokumelana nokukhasa., ukwedlula amaceramics amaningi e-monolithic kuzimo zokulayisha ezishisayo ezijikelezayo.
Njengento yokumboza, ivikela ama-metallic substratums ekufakweni kwe-oxidation futhi igqoke ku-aerospace kanye nezinhlelo zokuphehla amandla.
Ukuhleleka kwayo kuvumela ukulungiswa kwangaphakathi kwensizakalo nokuqeda ngokunemba, inzuzo enkulu phezu kwezitsha zobumba ezibuthakathaka ezidinga ukugaywa kwerubi.
4.2 Amasistimu Omkhiqizo Asebenzayo Nesebenza Kaningi
Ngaphandle kwemisebenzi yezakhiwo, I-Ti ₂ AlC iyahlolwa kuzinhlelo zokusebenza eziwusizo ezisebenzisa amandla ayo kagesi kanye nohlaka olunezingqimba..
Isebenza njengesandulela sokukhiqiza ama-MXene anezinhlangothi ezimbili (isib., Amathathu C ₂ Tₓ) ngokuqoshwa okuhlukanisayo kwesendlalelo se-Al, ukunika amandla izinhlelo zokusebenza endaweni yokugcina amandla, izinzwa, kanye nokuvikela ukuphazamiseka kwe-electromagnetic.
Emikhiqizweni eyinhlanganisela, I-Ti ₂ i-AlC powder ithuthukisa ukuqina kanye nokusebenza okushisayo kwezinhlanganisela ze-ceramic matrix (Ama-CMC) kanye nezinhlanganisela zensimbi ze-matrix (Ama-MMCs).
Imvelo yayo yokugcoba ngaphansi kokushisa– ngenxa ye-shear yendiza elula eyisisekelo– iyenza ifanelekele ama-bearings azigcobayo kanye nezingxenye ezihambayo ezinhlelweni ze-aerospace.
Ucwaningo olukhulayo lugxile ekuphrintiwe kwe-3D kweziyinki ezisekelwe ku-Ti ₂ AlC ukuze kukhiqizwe izakhi zobumba eziyinkimbinkimbi., ukusunduza imingcele yokukhiqiza okungeziwe ezintweni eziphikisayo.
Ngokufigqiwe, I-Ti ₂ AlC MAX isigaba se-powder simele ukushintsha kwepharadigm kwisayensi yemikhiqizo yobumba, ukuxhumanisa igebe phakathi kwezinsimbi kanye nama-porcelain ngokusebenzisa ukwakheka kwayo kwe-athomu ehlukanisiwe kanye ne-hybrid bonding.
Inhlanganisela yayo ehlukile ye-machinability, ukuphepha okushisayo, ukumelana ne-oxidation, kanye ne-conductivity kagesi ivumela izingxenye zesizukulwane esilandelayo ze-aerospace, amandla, kanye nokukhiqizwa okuthuthukile.
Njengoba ubuchwepheshe bokuhlanganisa nokuphatha bukhula, I-Ti two AlC izodlala umsebenzi obaluleke kakhulu emikhiqizweni yobunjiniyela eyenzelwe izindawo ezeqisayo nezisebenzayo.
5. Umhlinzeki
I-RBOSCHCO ingumnikezeli wempahla yamakhemikhali othembekile emhlabeni jikelele & 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-aluminium carbide, sicela ukhululeke ukuxhumana nathi futhi uthumele uphenyo.
Omaka: I-Ti2AlC MAX Phase Powder, I-Ti2AlC Powder, I-Titanium aluminium carbide powder
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