Lilemong tsa morao tjena, li-semiconductors tsa silicon carbide li fumane tlhokomelo e atileng indastering. Leha ho le joalo, e le thepa e phahameng ea ts'ebetso, silicon carbide ke karolo e nyenyane feela ea lisebelisoa tsa elektronike (diode, lisebelisoa tsa matla). E ka boela ea sebelisoa e le li-abrasives, lisebelisoa tsa ho itšeha, lisebelisoa tsa mohaho, lisebelisoa tsa optical, li-catalyst carriers, le tse ling. Kajeno, haholo-holo re hlahisa li-ceramics tsa silicon carbide, tse nang le melemo ea botsitso ba lik'hemik'hale, ho hanyetsa mocheso o phahameng, ho hanyetsa ho roala, ho hanyetsa kutu, mocheso o phahameng oa mocheso, coefficient e tlaase ea mocheso, tekanyo e tlaase, le matla a phahameng a mochine. Li sebelisoa haholo libakeng tse kang mechine ea lik'hemik'hale, matla le tšireletso ea tikoloho, li-semiconductors, metallurgy, tšireletso ea naha le indasteri ea sesole.
Silicon carbide (SiC)e na le silicon le carbon, 'me ke motsoako o tloaelehileng oa mefuta e mengata, haholo-holo ho kenyelletsa mefuta e' meli ea kristale: α - SiC (mofuta o tsitsitseng oa mocheso o phahameng) le β - SiC (mofuta o tsitsitseng oa mocheso o tlaase). Ho na le mefuta e mengata e fetang 200 ka kakaretso, eo har'a eona 3C SiC ea β - SiC le 2H SiC, 4H SiC, 6H SiC, le 15R SiC ea α - SiC e emelang.
Setšoantšo sa SiC Multibody Structure
Ha mocheso o le ka tlase ho 1600 ℃, SiC e teng ka sebōpeho sa β - SiC 'me e ka lokisoa ho tsoa ho motsoako o bonolo oa silicon le carbon ho pota 1450 ℃. Ha mocheso o feta 1600 ℃, β - SiC butle-butle e fetoha li-polymorphs tse fapaneng tsa α - SiC. 4H SiC e hlahisoa habonolo ho pota 2000 ℃; Ka bobeli li-polymorphs tsa 6H le 15R li hloka mocheso o phahameng ho feta 2100 ℃ bakeng sa ho theha habonolo; 6H SiC e ka lula e tsitsitse esita le mochesong o fetang 2200 ℃, e etsa hore e sebelisoe haholo lits'ebetsong tsa indasteri.
Silicon carbide e hloekileng ke kristale e se nang 'mala le e bonaletsang, ha silicon carbide ea indasteri e ka ba e se nang mebala, e mosehla o mosehla, e botala bo khanyang, botala bo lefifi, boputsoa bo bobebe, boputsoa bo lefifi, kapa esita le botsho, ka maemo a fokotsehang a pepeneneng. Indasteri ea abrasive e arola silicon carbide ka mefuta e 'meli e thehiloeng ho mebala: silicon carbide e ntšo le silicon carbide e tala. silicon carbide e se nang 'mala ho isa ho botala bo lefifi e khetholloa e le silicon carbide e tala, ha silicon carbide e bobebe ho isa ho e ntšo e khetholloa e le silicon carbide e ntšo. Silicon carbide e ntšo le silicon carbide e tala ka bobeli ke likristale tsa alpha SiC tse hexagonal, 'me phofo e tala ea silicon carbide hangata e sebelisoa e le thepa e tala bakeng sa lirafshoa tsa silicon carbide.
Ts'ebetso ea Silicon Carbide Ceramics e Lokisitsoeng ke Mekhoa e sa Tšoaneng
Leha ho le joalo, li-ceramics tsa silicon carbide li na le bofokoli ba ho thatafala ha fracture le bofokoli bo phahameng. Ka hona, lilemong tsa morao tjena, li-ceramics tse kopantsoeng tse thehiloeng holim'a silicon carbide ceramics, tse kang fiber (kapa whisker) reinforcement, heterogeneous particle e matlafatsang, le lisebelisoa tse sebetsang tsa gradient, li hlahile ka ho latellana, ho ntlafatsa ho tiea le matla a thepa ka bomong.
E le lisebelisoa tse phahameng tsa mocheso o phahameng oa ceramic, li-ceramics tsa silicon carbide li 'nile tsa sebelisoa ka ho eketsehileng ka libotlolong tsa mocheso o phahameng, tšepe ea tšepe, petrochemicals, lisebelisoa tsa elektroniki, sefofane, matla le tšireletso ea tikoloho, matla a nyutlelie, likoloi le likarolo tse ling.
Ka 2022, boholo ba mmaraka oa li-ceramics tsa silicon carbide tsa China bo lebelletsoe ho fihla ho li-yuan tse limilione tse likete tse 18.2. Ka katoloso e eketsehileng ea masimo a kopo le litlhoko tsa kholo e tlase, ho hakanngoa hore boholo ba mmaraka oa lirafshoa tsa silicon carbide tsa sebopeho se tla fihla ho li-yuan tse limilione tse likete tse 29.6 ka 2025.
Nakong e tlang, ka lebelo le ntseng le eketseha la ho kenella ha likoloi tse ncha tsa matla, matla, indasteri, puisano le likarolo tse ling, hammoho le litlhoko tse ntseng li eketseha tsa ho nepahala ho phahameng, ho hanyetsa ho apara ho phahameng, le likarolo tse phahameng tsa mochine kapa likarolo tsa elektronike likarolong tse sa tšoaneng, boholo ba 'maraka oa lihlahisoa tsa silicon carbide ceramic li lebelletsoe ho tsoela pele ho hola, tseo likoloi tse ncha tsa matla le photovoltaics e leng libaka tsa bohlokoa tsa nts'etsopele.
Li-ceramics tsa silicon carbide li sebelisoa liipone tsa ceramic ka lebaka la thepa ea tsona e ntle ea mocheso o phahameng oa mocheso, ho hanyetsa mollo le ho hanyetsa mocheso oa mocheso. Har'a tsona, li-roller kilns li sebelisoa haholo-holo bakeng sa ho omisa, ho sila le ho futhumatsa mocheso oa lithium-ion battery positive electrode materials, negative electrode materials, le electrolyte. Lisebelisoa tsa elektrode tse ntle le tse mpe tsa betri ea lithium li bohlokoa haholo bakeng sa likoloi tse ncha tsa matla. Thepa ea silicon carbide ceramic kiln ke karolo ea bohlokoa ea li-kilns, e ka ntlafatsang bokhoni ba tlhahiso ea kiln le ho fokotsa haholo tšebeliso ea matla.
Lihlahisoa tsa silicon carbide ceramic le tsona li sebelisoa haholo likarolong tse fapaneng tsa likoloi. Ho phaella moo, lisebelisoa tsa SiC li sebelisoa haholo-holo ho PCUs (lisebelisoa tsa ho laola matla, tse kang on-board DC / DC) le OBCs (li-unit tsa ho tjhaja) tsa likoloi tse ncha tsa matla. Lisebelisoa tsa SiC li ka fokotsa boima le boholo ba lisebelisoa tsa PCU, tsa fokotsa tahlehelo ea switch, le ho ntlafatsa mocheso oa ho sebetsa le ts'ebetso ea sistimi ea lisebelisoa; Hape hoa khoneha ho eketsa boemo ba matla a yuniti, ho nolofatsa sebopeho sa potoloho, ho ntlafatsa matla a matla, le ho eketsa lebelo la ho tjhaja nakong ea ho tjhaja OBC. Hona joale, lik'hamphani tse ngata tsa likoloi ho pota lefatše li sebelisitse silicon carbide ka mefuta e mengata, 'me ho amoheloa ka bongata ha silicon carbide ho fetohile mokhoa.
Ha li-ceramics tsa silicon carbide li sebelisoa e le lisebelisoa tsa bohlokoa tsa ho tsamaisa liseleng tsa photovoltaic, lihlahisoa tse hlahisoang joalo ka litšehetso tsa likepe, mabokose a likepe le lisebelisoa tsa liphaephe li na le botsitso bo botle ba mocheso, ha li fokotsehe ha li sebelisoa ka mocheso o phahameng, 'me ha li hlahise litšila tse kotsi. Li ka nka sebaka sa litšehetso tsa seketsoana sa quartz tse sebelisoang hangata, mabokose a likepe le lisebelisoa tsa liphaephe, 'me li na le melemo e mengata ea litšenyehelo.
Ntle le moo, litebello tsa 'maraka tsa lisebelisoa tsa motlakase tsa photovoltaic silicon carbide li pharalletse. Lisebelisoa tsa SiC li na le khanyetso e tlase, tefiso ea heke, le litšoaneleho tsa tefiso ea ho khutlisa. Ho sebelisa SiC Mosfet kapa SiC Mosfet ho kopantsoe le SiC SBD photovoltaic inverters ho ka eketsa katleho ea phetoho ho tloha ho 96% ho ea ho feta 99%, ho fokotsa tahlehelo ea matla ka ho feta 50%, le ho eketsa bophelo ba potoloho ea lisebelisoa ka makhetlo a 50.
Tšimoloho ea li-ceramics tsa silicon carbide e ka saloa morao ho tloha lilemong tsa bo-1890, ha silicon carbide e ne e sebelisoa haholo-holo bakeng sa lisebelisoa tsa ho sila le lisebelisoa tse refractory. Ka nts'etsopele ea theknoloji ea tlhahiso, lihlahisoa tsa SiC tsa theknoloji e phahameng li 'nile tsa ntlafatsoa ka ho pharaletseng,' me linaha ho pota lefatše li ela hloko haholo indasteri ea lirafshoa tse tsoetseng pele. Ha ba sa khotsofatsoa ke ho lokisoa ha lirafshoa tse tloaelehileng tsa silicon carbide. Likhoebo tse hlahisang lirafshoa tsa theknoloji e phahameng li ntse li tsoela pele ka potlako, haholo-holo linaheng tse tsoetseng pele moo ketsahalo ena e leng ea bohlokoa haholo. Baetsi ba kantle ho naha haholo ba kenyelletsa Saint Gobain, 3M, CeramTec, IBIDEN, Schunk, Narita Group, Toto Corporation, CoorsTek, Kyocera, Aszac, Japan Jingke Ceramics Co., Ltd., Japan Special Ceramics Co., Ltd., IPS Ceramics, joalo-joalo.
Tsoelo-pele ea silicon carbide Chaena e ne e le morao haholo ha e bapisoa le linaha tse tsoetseng pele tse kang Europe le Amerika. Ho tloha ha sebōpi sa pele sa indasteri bakeng sa tlhahiso ea SiC se hahiloe Fekthering ea Pele ea Mabili a Sila ka Phuptjane 1951, China e ile ea qala ho hlahisa silicon carbide. Baetsi ba malapeng ba li-ceramics tsa silicon carbide ba tsepamisitsoe haholo Toropong ea Weifang, Profinseng ea Shandong. Ho ea ka litsebi, sena ke hobane likhoebo tsa lehae tsa merafo ea mashala li tobane le ho putlama 'me li batla phetoho. Likhamphani tse ling li hlahisitse lisebelisoa tse loketseng ho tsoa Jeremane ho qala ho etsa lipatlisiso le ho hlahisa silicon carbide.ZPC ke e mong oa baetsi ba kholo ka ho fetisisa ba reaction sintered silicon carbide.
Nako ea poso: Nov-09-2024