Aluminium thaethaniamo carbide, Ti3AlC2

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Aluminium thaethaniamo carbide, Ti3AlC2

Titanium-aluminium carbide (TI-Al carbide) ke mofuta o mocha oa thepa ea letsopa ea mekato e meraro, e amehileng haholo ke bo-rasaense ba lintho tse bonahalang le litsebi tsa fisiks ka lebaka la thepa ea eona e ikhethang.


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Titanium-aluminium carbide (TI-Al carbide) ke mofuta o mocha oa thepa ea letsopa ea mekato e meraro, e amehileng haholo ke bo-rasaense ba lintho tse bonahalang le litsebi tsa fisiks ka lebaka la thepa ea eona e ikhethang.
Titanium aluminium carbide (Ti3AlC2) ke ea tsamaiso ea kristale e nang le mahlakore a tšeletseng, 'me e na le litšobotsi tsa tšepe le letsopa: e na le conductivity e tšoanang le mocheso o tsamaisang mocheso joaloka tšepe, empa e boetse e na le modulus e phahameng haholo ea elastic le lisebelisoa tse ntle haholo tsa mocheso o phahameng joalo ka ceramic , e nang le phihlello e ntle le bokhoni ba ho tsamaisa mocheso, maemo a phahameng a rekere le boima ba Vickers bo tlase, le bokhoni bo botle ba ho hanela tšenyo. E ka sebetsoa ka mocheso oa kamore ebe ea hlahisa seoa sa polasetiki mocheso o phahameng. E boetse e na le botsitso bo botle ba mocheso o phahameng le ho hanyetsa ho kena moea. E boetse e na le mocheso o motle oa ho hanyetsa mocheso, ho hanyetsa tšenyo le khanyetso e ntle ea lik'hemik'hale
MAX phase ceramics (ho kenyeletsoa Ti3SiC2, Ti3AlC2, jj.) Ke mofuta o mocha oa li-ceramics tse tsamaisang thepa. Lisebelisoa tsena li na le li-carbide kapa li-nitride tse fetang mashome a tšeletseng. M e emetse karolo ea tšepe e ka pele ea sehlopha sa phetoho; A e emetse dielemente tsa sehlopha se seholo, haholoholo dihlopha tsa boraro le tsa bone; X ke ea khabone kapa naetrojene.

Ti3SiC2 ke eona e ithutoang ka ho fetisisa. Ti3SiC2 e hlophisitsoe ka katleho ke khatello e chesang ka 1996 ke Moprofesa Barsoum M oa Univesithi ea Drexel naheng ea United States mme thepa ea eona e ntle e fumanoe. Ka lebaka la sebopeho sa eona se ikhethileng sa "nanometer" se entsoeng ka kristale, mofuta ona oa lisebelisoa tsa letsopa o na le thepa e kang ho hanyetsa oxidation, ho itlotsa ka boeona, ho thatafala ho hoholo ha mocheso mohatsela le ho khanna. Mofuta ona oa lisebelisoa o ka sebelisoa haholo joalo ka thepa ea mocheso o phahameng, thepa ea eleketrode ea borashe, lisebelisoa tsa lik'hemik'hale tse thibelang mocheso le mocheso o phahameng oa ho futhumatsa. Lihlahisoa li sebelisoa haholo bakeng sa liphahlo tse phahameng tsa mocheso, li-precursors tsa MXene, li-ceramics tse itšereng tse itlhommeng pele, libeteri tsa lithium ion, li-supercapacitors, electrochemical catalysis.
Mekhahlelo ea tekheniki ea Ti3AlC2:

ntho paramethara
 mochini

thepa

khatello ea matla (MPa) 764
kobang matla (MPa) 375 ± 15
ho senya mamello (MPa ?? m1 / 2) 7.2
Vickers thatafala (GPa) 3.5
Modulus e monyane (GPa) 297
motlakasethepa Ts'ebetso e le 'ngoe ea conduct × 106S ?? m ﹣ 1) 2.9 `` 25 ''
0.85 (800 ℃)
mocheso oa mocheso oa ho hanyetsa resistance × 10(3K, 1) 3.1
mogotethepa coefficient ea ho atolosa mocheso ho atoloha ha mocheso

(× 10-6KK 1)

9.0
mocheso (J ?? mol (1 ?? K ﹣ 1) ﹣﹣
mocheso ivity W m m ﹣ 1 ?? K ﹣ 1) ﹣﹣
mogote makala ho hanyetsa E lokile
botsitso bo phahameng ba mocheso E lokile

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