Itreyi yeCeramic yeSilicon Carbide – Iitreyi ezihlala ixesha elide nezisebenza kakuhle kwizicelo zobushushu nezekhemikhali

Itreyi yeCeramic yeSilicon Carbide – Iitreyi ezihlala ixesha elide nezisebenza kakuhle kwiindlela zokusetyenziswa kobushushu kunye neekhemikhali Umfanekiso obonisiweyo

Inkcazo emfutshane:

Thumela i-imeyile kuthi

Iimbonakalo

Umzobo oneenkcukacha

Intshayelelo yeMveliso

Iitreyi zeseramikhi zeSilicon carbide (SiC) zizinto ezisebenza kakhulu ezisetyenziswa kakhulu kwiindawo zoshishino ezinobushushu obuphezulu, umthwalo ophezulu, kunye neendawo ezinobungozi beekhemikhali. Zenziwe ngezinto zeseramikhi zeSilicon carbide eziphucukileyo, ezi treyi zenzelwe ukunika amandla oomatshini angaqhelekanga, ukuqhuba kobushushu okuphezulu, kunye nokumelana okuhle kakhulu noxinzelelo lobushushu, i-oxidation, kunye nokugqwala. Ukuqina kwazo kuzenza zifaneleke kakhulu kwizicelo ezahlukeneyo zoshishino kubandakanya ukwenziwa kwe-semiconductor, ukucubungula i-photovoltaic, ukuthungwa kwe-powder metallurgy parts, nokunye.

Iitreyi ze-silicon carbide zisebenza njengezithwali ezibalulekileyo okanye izixhasi ngexesha leenkqubo zonyango lobushushu apho ukuchaneka kobukhulu, ukuthembeka kwesakhiwo, kunye nokumelana neekhemikhali kubaluleke kakhulu. Xa kuthelekiswa nezixhobo ze-ceramic zemveli ezifana ne-alumina okanye i-mullite, iitreyi ze-SiC zibonelela ngokusebenza okuphezulu kakhulu, ngakumbi kwiimeko ezibandakanya ukujikeleza kobushushu okuphindaphindiweyo kunye ne-atmospheres enamandla.

Inkqubo yoMveliso kunye noBume beZinto

Ukuveliswa kweetreyi ze-ceramic ze-SiC kubandakanya ubunjineli obuchanekileyo kunye nobuchwepheshe obuphambili bokuthungula ukuqinisekisa uxinano oluphezulu, ulwakhiwo olufanayo, kunye nokusebenza rhoqo. Amanyathelo aqhelekileyo aquka:

Ukukhethwa kwezinto eziluhlaza
Kukhethwa umgubo we-silicon carbide ococekileyo kakhulu (≥99%), odla ngokulawulwa ubungakanani beesuntswana ezithile kunye nokungcola okuncinci ukuqinisekisa iipropati eziphezulu zoomatshini kunye nobushushu.
Iindlela Zokwenza
Ngokuxhomekeke kwiinkcukacha zetreyi, iindlela ezahlukeneyo zokwakheka ziyasetyenziswa:
- Ukucinezela iCold Isostatic (CIP) kwiikhompyutha ezinoxinano oluphezulu nezifanayo
- Ukukhupha okanye ukutyibiliza iimilo ezintsonkothileyo
- Ukubumba inaliti kwiijiyometri ezichanekileyo nezineenkcukacha
Iindlela zokuSinta
Umzimba oluhlaza utshiswa kumaqondo obushushu aphezulu kakhulu, aqhele ukuba kwi-2000°C, phantsi kwemozulu engangenisi manzi okanye engenamoya. Iindlela eziqhelekileyo zokutshiswa ziquka:
- I-Reaction Bonded SiC (RB-SiC)
- I-Sintered Sintered Engenaxinzelelo (SSiC)
- I-SiC ephinde yasetyenziswa (RBSiC)
  Indlela nganye iphumela kwiipropati zezinto ezahluke kancinci, ezinje nge-porosity, amandla, kunye nokuqhuba kobushushu.
Umatshini Wokuchwetheza ngokuchanekileyo
Emva kokucocwa, iitreyi ziyacutshungulwa ngomatshini ukuze zikwazi ukumelana nobunzima obuqinileyo, ukugqitywa komphezulu okugudileyo, kunye nokuba tyaba. Unyango lomphezulu olufana nokulepha, ukugaya, kunye nokupolisha lungasetyenziswa ngokuxhomekeke kwiimfuno zabathengi.

Izicelo eziqhelekileyo

Iitreyi ze-silicon carbide ceramic zisetyenziswa kwiindidi ezahlukeneyo zamashishini ngenxa yokuguquguquka kwazo kunye nokuqina kwazo. Izicelo eziqhelekileyo ziquka:

Ishishini leSemiconductor
Iitreyi zeSiC zisetyenziswa njengezithwali ngexesha leenkqubo zokufunxa i-wafer, ukusasazwa kwayo, ukunyibilikisa i-oxidation, i-epitaxy, kunye nokufakelwa kwayo. Uzinzo lwazo luqinisekisa ukusasazwa kobushushu obufanayo kunye nongcoliseko oluncinci.
Ishishini le-Photovoltaic (PV)
Kwimveliso yeeseli zelanga, iitreyi zeSiC zixhasa ii-silicon ingots okanye ii-wafers ngexesha lokusasazwa kobushushu obuphezulu kunye namanyathelo okusila.
I-Powder Metallurgy kunye neeCeramics
Isetyenziselwa ukuxhasa izinto ngexesha lokusila iipowder zesinyithi, iiseramikhi, kunye nezinto ezidityanisiweyo.
Iiphaneli zeglasi kunye neziboniso
Isetyenziswa njengeetreyi ze-oven okanye amaqonga okwenza iiglasi ezikhethekileyo, ii-substrates ze-LCD, okanye ezinye izinto ezibonakalayo.
Ukucubungula iiKhemikhali kunye neeFurnaces ezishushu
Zisebenza njengezithuthi ezingamelani nokugqwala kwiireactors zeekhemikhali okanye njengeetreyi zokuxhasa ubushushu kwiifutha ze-vacuum kunye ne-atmosphere elawulwayo.

Iimpawu eziphambili zokusebenza

✅Uzinzo oluKhethekileyo lweThermal
Iyamelana nokusetyenziswa rhoqo kumaqondo obushushu afikelela kwi-1600–2000°C ngaphandle kokugoba okanye ukubola.
✅Amandla aphezulu oomatshini
Inika amandla aphezulu okugoba (ngesiqhelo i->350 MPa), iqinisekisa ukuqina kwexesha elide nokuba phantsi kweemeko zomthwalo ophezulu.
✅Ukumelana noTshabalalo oluTshisayo
Ukusebenza kakuhle kakhulu kwiindawo ezinokuguquguquka okukhawulezayo kobushushu, okunciphisa umngcipheko wokuqhekeka.
✅Ukumelana nokugqwala kunye ne-Oxidation
Izinzile ngokweekhemikhali kwiiasidi ezininzi, ii-alkali, kunye neegesi ezikhupha i-oxidizing/reducing, kwaye ifanelekile kwiinkqubo zeekhemikhali ezinzima.
✅Ukuchaneka kunye noBuchule obuLungileyo
Yenziwe ngomatshini ngokuchanekileyo okuphezulu, iqinisekisa ukucutshungulwa okufanayo kunye nokuhambelana neenkqubo ezizenzekelayo.
✅Ixesha Elide Lokuphila Nokusebenza Kakuhle Kweendleko
Amaxabiso okutshintshwa aphantsi kunye neendleko zokulungisa ezincitshisiweyo zenza ukuba ibe sisisombululo esingabizi kakhulu ekuhambeni kwexesha.

Iinkcukacha zobugcisa

Ipharamitha	Ixabiso eliqhelekileyo
Izinto eziphathekayo	I-Reaction Bonded SiC / Sintered SiC
Ubushushu obuphezulu bokusebenza	1600–2000°C
Amandla okuGuquka	≥350 MPa
Uxinano	≥3.0 g/cm³
Ukuqhuba kweThermal	~120–180 W/m·K
Ubungangamsha bomphezulu	≤ 0.1 mm
Ubukhulu	5–20 mm (ingenziwa ngokwezifiso)
Ubukhulu	Umgangatho: 200×200 mm, 300×300 mm, njl.
Umphezulu wokugqiba	Yenziwe ngomatshini, ipolishiwe (xa iceliwe)

Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo)

Umbuzo 1: Ngaba iitreyi ze-silicon carbide zingasetyenziswa kwii-vacuum heater?
A:Ewe, iitreyi zeSiC zilungele iindawo zokucoca umoya ngenxa yokuba azinagesi ingako, azinazinzo kwiikhemikhali, kwaye azinawo ubushushu obuphezulu.

Umbuzo 2: Ngaba kukho iimilo okanye iindawo zokubeka ezenziwe ngokwezifiso?
A:Ngokuqinisekileyo. Sinikezela ngeenkonzo zokwenza ngokwezifiso kuquka ubungakanani betreyi, imilo, iimpawu zomphezulu (umz., imingxunya, imingxunya), kunye nokupholisha umphezulu ukuze kuhlangatyezwane neemfuno zabathengi ezizodwa.

Umbuzo 3: I-SiC ithelekiswa njani neetreyi ze-alumina okanye ze-quartz?
A:I-SiC inamandla aphezulu, iqhuba kakuhle ubushushu, kwaye iyakwazi ukumelana nobushushu kunye nokugqwala kweekhemikhali. Nangona i-alumina ingabizi kakhulu, i-SiC isebenza ngcono kwiimeko ezixineneyo.

Umbuzo 4: Ngaba kukho ubukhulu obuqhelekileyo bezi treyi?
A:Ubukhulu buhlala buphakathi kwe-5–20 mm, kodwa singabulungisa ngokusekelwe kwisicelo sakho kunye neemfuno zokuthwala umthwalo.

Q5: Lingakanani ixesha eliqhelekileyo lokufumana iitreyi zeSiC ezenziwe ngokwezifiso?
A:Amaxesha okukhokela ayahluka ngokuxhomekeke kubunzima kunye nobungakanani kodwa ngokubanzi aqala kwiiveki ezi-2 ukuya kwezi-4 kwiiodolo ezenzelwe wena.

Ngathi

I-XKH igxile kuphuhliso lobuchwepheshe obuphezulu, imveliso, kunye nokuthengiswa kweglasi ekhethekileyo ye-optical kunye nezixhobo ezintsha zekristale. Iimveliso zethu zibonelela nge-optical electronics, i-consumer electronics, kunye ne-military. Sinikezela nge-Sapphire optical components, ii-mobile phone lens covers, i-Ceramics, i-LT, i-Silicon Carbide SIC, i-Quartz, kunye ne-semiconductor crystal wafers. Ngobuchule obunobuchule kunye nezixhobo eziphambili, sigqwesile ekucutshungulweni kwemveliso okungaqhelekanga, sijolise ekubeni yishishini eliphambili le-optoelectronic materials high-tech.