Motsoako oo e seng oa tšepe o entsoeng ka silicon le naetrojene, silicon nitride (Si3N4) hape ke thepa ea letsopa e tsoetseng pele e nang le motsoako o ka feto-fetohang oa thepa ea mochini, e futhumatsang le ea motlakase. Ho feta moo, ha e bapisoa le lirafshoa tse ling tse ngata, ke ceramic e sebetsang hantle haholo e nang le katoloso e tlase ea mocheso e fanang ka matla a ho hanyetsa mocheso.
Likaroloana
Ka lebaka la coefficient ea eona e tlase ea katoloso ea mocheso, thepa e na le ts'oaetso e phahameng haholo ea mocheso le ho thatafala ha fracture. Lisebelisoa tsa Si3N4 ha li khone ho ts'oaroa le ho ts'oha. Lisebelisoa tsena li khona ho mamella mocheso oa ho fihla ho 1400 °C 'me li hanyetsa lik'hemik'hale, lintho tse senyang, le lirafshoa tse khethehileng tse kang aluminium, hammoho le li-acids le alkaline solution. Tšobotsi e 'ngoe ke ho fokotseha ha eona. E na le boima bo tlase ba 3.2 ho isa ho 3.3 g/cm3, e batlang e le bobebe joalo ka aluminium (2.7 g/cm3), 'me e na le matla a holimo a ho kobeha a ≥900 MPa.
Ho feta moo, Si3N4 e khetholloa ka ho hanyetsa ho hoholo ho sebetsa 'me e feta litšepe tse ngata tsa mocheso tse phahameng, joaloka matla a mocheso o phahameng le ho hanyetsa ha metsi. E fana ka motsoako o phahameng oa khanyetso ea creep le oxidation mme e feta bokhoni ba mocheso o phahameng oa litšepe tse ngata. Ka lebaka la mocheso oa eona o fokolang oa mocheso le ho hanyetsa ka matla ho apara, e ka mamella maemo a thata ka ho fetisisa lits'ebetsong tse boima ka ho fetisisa tsa indasteri. Ho feta moo, silicon nitride ke khetho e ntle ha ho hlokahala hore ho be le thempereichara e phahameng le ho jara lintho tse ngata.
Thepa
● Ho robeha ho matla haholo
● Matla a matle a ho tenyetseha
● Tšebeliso e tlaase haholo
● Tšireletso e matla haholo ea mocheso oa mocheso
● Mocheso o phahameng oa ho sebetsa libakeng tse nang le oxidizing
Mokhoa oa Tlhahiso
Mekhoa e mehlano e fapaneng e sebelisoang ho etsa silicon nitride-e lebisa ho lisebelisoa tse fapaneng tse sebetsang le lits'ebetso.
SBRSN (rection-bonded silicon nitride)
GPSN (khatello ea khase e kentsoeng silicon nitride)
HPSN (silicon nitride e hatelletsoeng ka ho chesa)
HIP-SN (silicon nitride e chesang ka isostatically)
RBSN (rection-bonded silicon nitride)
Har'a tsena tse hlano, GPSN ke mokhoa o sebelisoang haholo oa tlhahiso.
Mehlala ea Tšebeliso
Libolo le Lintho tse Rolling bakeng sa Leseli
Ka lebaka la matla a bona a maholo a ho robeha le thepa e ntle ea tribological, li-ceramics tsa silicon nitride li loketse ho sebelisoa e le libolo le likaroloana tse pota-potileng bakeng sa leseli, li-bearings tse nepahetseng haholo, lisebelisoa tse boima tsa ho etsa ceramic, le likarolo tsa koloi tse hatelitsoeng haholo. Ho feta moo, mekhoa ea ho tjheseletsa e sebelisa thepa e matla ea ho hanyetsa mocheso oa mocheso le ho hanyetsa mocheso o phahameng.
Lisebelisoa tsa Mocheso o Phahameng
Ntle le moo, ke khale e sebelisoa lits'ebetsong tsa mocheso o phahameng. Taba ea hore ke e 'ngoe ea lisebelisoa tse' maloa tsa ceramic tsa monolithic tse ka mamellang mocheso o feteletseng oa mocheso le likhahla tsa mocheso tse hlahisoang ke lienjini tsa rocket tsa hydrogen / oxygen.
Indasteri ea Likoloi
Hajoale, lisebelisoa tsa silicon nitride li sebelisoa haholo indastering ea likoloi lits'ebetsong tsa likarolo tsa enjene le lisebelisoa tsa enjene, joalo ka li-turbocharger bakeng sa inertia e tlase le ho fokotseha ha enjine le mesi, li-plug tse khanyang bakeng sa ho qala kapele, li-valve tsa taolo ea khase bakeng sa ho potlakisa ho eketseha, le liphahlo tsa letsoho tsa rocker bakeng sa ho theola lienjineri tsa khase.
Indasteri ea Elektronike
Ka lebaka la thepa ea eona e ikhethang ea motlakase, lits'ebetsong tsa microelectronics, silicon nitride e ntse e sebelisoa haholo joalo ka setšireletsi sa lik'hemik'hale ha ho etsoa lipotoloho tse kopaneng bakeng sa ho paka ka mokhoa o bolokehileng oa lisebelisoa. Silicon nitride e sebelisoa e le "passivation layer" e nang le "thibelo e phahameng ea ho hasana khahlano le li-ion tsa sodium le metsi, e leng lisosa tse peli tsa mantlha tse bakang kutu le ho hloka botsitso ho microelectronics. Ho li-capacitor bakeng sa lisebelisoa tsa analog, ntho ena e boetse e sebelisoa e le sehaisi sa motlakase lipakeng tsa lera la polysilicon.
Qetello
Silicon nitride ceramics ke lisebelisoa tsa bohlokoa. Mofuta o mong le o mong oa letsopa lena o na le likarolo tse ikhethang tse etsang hore e sebelisoe likarolong tse fapaneng. Ho utloisisa mefuta e mengata ea silicon nitride ceramics ho etsa hore ho be bonolo ho khetha e ntle ka ho fetisisa bakeng sa ts'ebeliso e fanoeng.
