Porous Graphite bakeng sa Khōlo ea SiC Crystal

Indastering ea tlhahiso ea li-semiconductor, porous graphite e fetohile ntho ea bohlokoa haholo ea khabone e tsoetseng pele ka lebaka la thepa ea eona e ikhethang ea 'mele le ea lik'hemik'hale. Semixlab e ikemiselitse ho fana ka lihlahisoa tsa boleng bo holimo tsa porous graphite ho fihlela litlhoko tsa hau tsa kopo maemong a thata.

Lintho tsa Motheo tsa 'Mele tsa Porous Graphite

Porous graphite e thehiloe holim'a lisebelisoa tse phahameng tsa graphite 'me e sebetsoa ka mekhoa e tsoetseng pele ea ho etsa sebopeho sa porous se nang le sebopeho se ts'oanang le porosity e laoloang. Lintho tsa eona tse ka sehloohong tsa 'mele li kenyelletsa:

● Bohloeki bo Phahameng: Khabone e fihla holimo ho 99.9%, e nang le litšila tse tlase haholo.

● Ho Iketla ha Lik'hemik'hale ho Haholo: E lula e tsitsitse esita le tlas'a mocheso o feteletseng le moea o senyang.

● Low Thermal Conductivity: E bonts'a ts'ebetso e tsotehang ea ho kenya mocheso oa mocheso libakeng tse phahameng tsa mocheso.

● Controlled Porosity: E tšehetsa ho itloaetsa ha mefuta e sa tšoaneng ea pore, ka mokhoa o tsitsitseng le o feto-fetohang oa khase.

● Thermal Stability: E ka sebetsa ka mokhoa o tsitsitseng tlas'a maemo a feteletseng ho feta 2000°C.

Mehaho ena e etsa hore graphite e nang le porous e be khetho e nepahetseng bakeng sa litsamaiso tsa masimo a mocheso, likarolo tsa ho kenya letsoho, le likarolo tsa phallo ea khase, haholo-holo ka har'a libopi tsa kholo ea kristale e le 'ngoe ea SiC, moo melemo ea eona ea ts'ebetso e hlahelletseng haholo.

Karolo e ka Sehloohong ea Porous Graphite ho Silicon Carbide Single Crystal Growth Furnaces

Ka silicon carbide e tsoetseng pele (SiC) libono tsa kholo ea kristale e le 'ngoe, porous graphite e bapala karolo ea bohlokoa, ka mesebetsi ea eona e meraro ea bohlokoa e le ea bohlokoa kholong e atlehileng ea likristale tsa boleng bo holimo tsa SiC:

Mocheso o tlase oa mocheso o fana ka tšireletso e babatsehang, ho boloka mocheso o phahameng ka har'a sebōpi le ho theha likhahla tse nepahetseng tsa mocheso.

Nakong ea kholo ea kristale ea SiC, sebōpi se tlameha ho boloka mocheso o feteletseng o fihla ho 2000 ° C kapa ho feta. Porous graphite, e nang le conductivity ea eona e tlaase haholo ea mocheso, e fokotsa tahlehelo ea mocheso, e etsa bonnete ba hore mocheso o tsitsitse ka har'a kamore ea sebōpi. Habohlokoa le ho feta, ka ho rala ka mokhoa o nepahetseng sebopeho sa geometri le kabo ea pore ea likarolo tsa porous graphite insurance, hoa khoneha ho theha ka bohlale le ho boloka mocheso o nepahetseng oa mocheso o hlokahalang bakeng sa kholo ea kristale ka har'a sebōpi. Gradient ena e sebetsa e le matla a ho tsamaisa mouoane oa SiC mme e laetse kholo ea kristale; esita le ho feto-fetoha ho fokolang ha mocheso ho ka lebisa ho bokooa ba kristale. Ka hona, mocheso o tlase oa mocheso oa graphite insulation ke lejoe la sekhutlo la ho netefatsa botsitso ba mocheso oa tikoloho ea kholo ea kristale ea SiC.

Litšobotsi tsa eona tsa bohloeki bo phahameng li fana ka khaello e ntle ea lik'hemik'hale, e e nolofalletsang ho hanela kutu e phahameng ea mocheso le ho sireletsa 'mele oa sebōpi, kahoo e netefatsa tikoloho e hloekileng ea khōlo.

Tikoloho ea kholo ea likristale tse le 'ngoe tsa SiC e hloka bohloeki bo phahameng haholo. Lithempereichara tse phahameng ka har'a sebōpi ha li potlakise liketso feela empa hape li ka baka ho senyeha ha thepa kapa ho kenya litšila. Semixlab's high-purity porous graphite (High Purity Porous Graphite) e bonts'a ho se sebetse ka lik'hemik'hale tse ikhethang, ho bolelang hore ha e sebetsane le mehloli ea silicon, mehloli ea carbon, kapa libaka tse sireletsang (tse kang argon) tse hlokahalang bakeng sa kholo ea SiC, esita le mocheso o phahameng haholo. Mocheso ona o phahameng oa ho hanyetsa mocheso o sireletsa ka katleho mohaho o theko e boima oa sebōpi le likarolo tsa ka hare ho khoholeho ea mobu, ka ho feletseng ho felisa kotsi ea kenyelletso ea ho se hloeke. Tikoloho ea kholo e hloekileng, e se nang tšoaetso ke ntho e hlokahalang bakeng sa ho hlahisa likristale tsa boleng bo holimo tsa silicon carbide.

Mosebetsi oa eona o ka sehloohong le o ikhethang o itšetlehile ka ho khoneha ho laola, e leng se lumellang likhase (likhase tse tsamaisang thepa le lihlahisoa tsa karabelo) ho hasana ka mokhoa o ts'oanang le ka mokhoa o tsitsitseng ka thepa, ho finyella tekanyo e matla ea maemo a tlaase a khatello ka har'a sebōpi. Sena se thibela liphetoho tsa tšohanyetso tsa khatello le moferefere, ka tsela eo ho netefatsa hore ho tsamaisoa ho tsitsitseng ha lisebelisoa tsa mouoane oa SiC le khōlo ea boleng bo phahameng ho sebopeho sa kristale.

Ona ke ts'ebetso e mahlonoko ka ho fetesisa le e ke keng ea fetoha ea porous graphite kholong ea kristale ea SiC. Likristale tsa SiC hangata li holisoa ho sebelisoa mokhoa oa sublimation, o kenyelletsang ho tsamaisa mouoane oa silicon-khabone sebakeng sa kristale ea peo ka khase e tsamaisang thepa. Tsela e ikhethang e laoloang ea graphite e nang le porous e bolela hore sebopeho sa eona sa microporous se hokahaneng se lumella khase e tsamaisang (e kang argon) le lihlahisoa tsa karabelo (tse kang mouoane oa Si le C) hore li hasane ka mokhoa o ts'oanang le o tsitsitseng. Phallo ena ea khase e laoloang ke ea bohlokoa kaha e thusa:

1. Finyella tekano e matla tikolohong ea khatello e tlase ka har'a sebōpi: Ho boloka tikoloho e tsitsitseng ea khatello e tlaase ka har'a kamore ea sebōpi ho thibela ho thehoa ha libaka tse phahameng tsa khatello kapa tse mpe, e leng maemo a loketseng bakeng sa ho tsamaisa mouoane oa SiC.

2. Thibela liphetoho tsa tšohanyetso tsa khatello le moferefere: Phallo ea khase e sa laoleheng e ka 'na ea baka liphetoho tsa tšohanyetso khatellong ea sebōpi kapa moferefere, ho senya haholo tsela ea phetisetso ea mouoane oa SiC, e lebisang ho phetiso e sa tšoaneng,' me kahoo e ama khōlo e tšoanang le boleng ba kristale.

3. Etsa bonnete ba hore lipalangoang tse tsitsitseng tsa lisebelisoa tsa mohato oa mouoane oa SiC: Phallo ea khase e tsitsitseng e tiisa hore li-precursors tsa SiC (silicon le carbon vapor) li ka tsoela pele le ka mokhoa o ts'oanang ho fihla holim'a kristale ea peō, ho qoba litaba tse kang phepelo e sa lekaneng kapa ho bokella ho feteletseng.

4. Ho khothaletsa kholo ea boleng bo holimo ea kristale: Phetiso e tsitsitseng ea mouoane ke motheo oa ho theha mahokelo a kristale a bataletseng, a se nang sekoli. Ka ho laola ka nepo phallo ea khase ka porous graphite, likoli tse kang dislocation le microtubes nakong ea khōlo ea kristale li ka hatelloa ka katleho, tsa qetella tsa fana ka likristale tse le 'ngoe tsa SiC tsa boleng bo holimo, tse boholo bo boholo.

Melemo ea Sehlahisoa sa Porous Graphite ea Semixlab le Litiisetso tsa Tšebeletso

1. Tšehetso bakeng sa litlhaloso tse ngata le lits'ebeletso tsa ho iketsetsa

Semixlab e ka etsa lihlahisoa tsa porous graphite ho latela litlhoko tsa bareki, ho kenyelletsa empa e sa felle ho:

● Litene tsa insulation, likoahelo tsa mocheso oa mocheso

● Lipoleiti tse tšelang khase, li-blocks tse kenang ka hare ho metsi

● Likarolo tse khethehileng tsa tšimo ea mocheso (ho etsoa ka mokhoa o ikhethileng ho latela litšoantšo tse fanoeng)

● Mokhoa oa ho iketsetsa: Porosity 10% -80%, botenya ± 0.1mm taolo e nepahetseng

2. Phaliso e Potlakileng le Packaging ea Boemo bo Phahameng

Re fana ka sistimi ea phepelo e feto-fetohang le e sebetsang hantle:

● Nako ea ho fana: Litlhaloso tse tloaelehileng li rometsoe ka hare ho matsatsi a 5-7 a sebetsang; likarolo tse tloahelehileng tse rometsoeng nakong ea matsatsi a 10-15 kamora netefatso ea ho taka.

● Litekanyetso tsa ho paka: Sephutheloana sa Vacuum-proof + tšireletseho ea li-cushioning tse ngata ho netefatsa lipalangoang tse bolokehileng le tse se nang tšoaetso.

Ho khetha Semixlab's porous graphite ho bolela hore u khetha boleng ba boleng bo holimo, boits'oaro ba setsebi, le ts'ebeletso e ikhethang. Re labalabela ho sebelisana le uena ho fana ka tharollo ea lisebelisoa tse tšepahalang bakeng sa lits'ebetso tsa hau tsa morao-rao tsa theknoloji.