Ithreyi Yesilamikhi Ye-Silicon Carbide – Amathreyi Ahlala Isikhathi Eside, Asebenza Kakhulu Okusetshenziswa Kokushisa Namakhemikhali

Incazelo emfushane:

Sithumelele i-imeyili

Izici

Umdwebo Oningiliziwe

Isingeniso Somkhiqizo

Amathreyi e-silicon carbide (SiC) ceramic ayizingxenye ezisebenza kahle kakhulu ezisetshenziswa kabanzi ezindaweni zezimboni ezishisa kakhulu, ezithwala umthwalo omkhulu, nezinobuthi bamakhemikhali. Akhiwe ngezinto ze-silicon carbide ceramic ezithuthukisiwe, lawa mathreyi aklanyelwe ukuletha amandla akhethekile omshini, ukuqhuba ukushisa okuphezulu, kanye nokumelana okuhle kakhulu nokushaqeka kokushisa, i-oxidation, kanye nokugqwala. Ukuqina kwawo kuwenza afaneleke kakhulu ezinhlotsheni ezahlukahlukene zezimboni okuhlanganisa ukukhiqizwa kwe-semiconductor, ukucubungula i-photovoltaic, ukushiswa kwezingxenye ze-powder metallurgy, nokuningi.

Amathileyi e-silicon carbide asebenza njengabathwali noma izisekelo ezibalulekile ngesikhathi sezinqubo zokwelapha ukushisa lapho ukunemba kobukhulu, ubuqotho besakhiwo, kanye nokumelana namakhemikhali kubalulekile. Uma kuqhathaniswa nezinto zendabuko ze-ceramic ezifana ne-alumina noma i-mullite, amathileyi e-SiC anikeza ukusebenza okuphezulu kakhulu, ikakhulukazi ezimweni ezihilela ukujikeleza okuphindaphindiwe kokushisa kanye nemimoya enamandla.

Inqubo Yokukhiqiza Nokwakheka Kwezinto Ezibonakalayo

Ukukhiqizwa kwamathileyi e-SiC ceramic kuhilela ubunjiniyela obunembile kanye nobuchwepheshe obuthuthukisiwe bokuthulula ukuze kuqinisekiswe ukuminyana okuphezulu, isakhiwo esincane esifanayo, kanye nokusebenza okulinganayo. Izinyathelo ezijwayelekile zifaka:

Ukukhethwa Kwezinto Ezingavuthiwe
Kukhethwa i-silicon carbide powder ehlanzekile kakhulu (≥99%), ngokuvamile ngokulawulwa kosayizi wezinhlayiya ezithile kanye nokungcola okuncane ukuqinisekisa izakhiwo eziphezulu zemishini nezokushisa.
Izindlela Zokwakha
Kuye ngezidingo zethreyi, kusetshenziswa izindlela ezahlukene zokwakha:
- Ukucindezela Okungashintshi Okubandayo (i-CIP) kwama-compact aqinile, afanayo
- Ukukhipha noma ukuslayida okusanhlamvu kwezimo eziyinkimbinkimbi
- Ukubumba ngomjovo ukuze uthole amajiyometri anembile futhi anemininingwane
Amasu Okuhlanza
Umzimba oluhlaza ushiswa emazingeni okushisa aphezulu kakhulu, ngokuvamile aphakathi kuka-2000°C, ngaphansi kwesimo sezulu esingenawo umoya noma esingenawo umoya. Izindlela ezivamile zoshiswa zifaka:
- I-Reaction Bonded SiC (RB-SiC)
- I-SiC Engenangcindezi Engena-Sintered (SSiC)
- I-SiC Ephinde Yasetshenziswa (RBSiC)
  Indlela ngayinye iveza izakhiwo zezinto ezihlukile kancane, njenge-porosity, amandla, kanye nokuqhuba ukushisa.
Umshini Wokuchwephesha Oqondile
Ngemva kokusha, amathreyi ayashintshwa ukuze kutholakale ukubekezelelana okuqinile, ukuqeda ubuso okubushelelezi, kanye nokuba bushelelezi. Ukwelashwa kwendawo njengokugoqa, ukugaya, kanye nokupholisha kungasetshenziswa ngokuya ngezidingo zamakhasimende.

Izicelo Ezijwayelekile

Amathreyi e-silicon carbide ceramic asetshenziswa ezimbonini eziningi ngenxa yokuguquguquka kwawo kanye nokuqina kwawo. Izicelo ezivamile zifaka:

Imboni Ye-semiconductor
Amathreyi e-SiC asetshenziswa njengabathwali ngesikhathi sezinqubo zokufaka i-wafer annealing, diffusion, oxidation, epitaxy, kanye nokufakelwa. Ukuqina kwawo kuqinisekisa ukusatshalaliswa kokushisa okufanayo kanye nokungcola okuncane.
Imboni ye-Photovoltaic (PV)
Ekukhiqizweni kwamaseli elanga, amathreyi e-SiC asekela ama-ingot e-silicon noma ama-wafer ngesikhathi sokusabalalisa nokushisa okuphezulu.
I-Powder Metallurgy kanye ne-Ceramics
Isetshenziselwa ukusekela izingxenye ngesikhathi sokushiswa kwempuphu yensimbi, izinto zobumba, nezinto ezihlanganisiwe.
Amaphaneli Engilazi Nokubonisa
Kusetshenziswa njengamathileyi e-oven noma amapulatifomu okukhiqiza izibuko ezikhethekile, ama-substrate e-LCD, noma ezinye izingxenye ze-optical.
Ukucubungula Amakhemikhali kanye Nezithando Zokushisa
Zisebenza njengezithwali ezingagqwali kuma-reactor amakhemikhali noma njengamathileyi okusekela ukushisa kuma-vacuum cleaner kanye nama-atmosphere alawulwayo.

Izici Eziyinhloko Zokusebenza

✅Ukuzinza Okushisayo Okumangalisayo
Imelana nokusetshenziswa okuqhubekayo emazingeni okushisa afinyelela ku-1600–2000°C ngaphandle kokugoba noma ukubola.
✅Amandla Aphezulu Okusebenza Kwemishini
Inikeza amandla aphezulu okugoba (ngokuvamile >350 MPa), iqinisekisa ukuqina kwesikhathi eside ngisho nangaphansi kwezimo zomthwalo ophezulu.
✅Ukumelana Nokushaqeka Okushisayo
Ukusebenza okuhle kakhulu ezindaweni ezinokushintshashintsha kwezinga lokushisa okusheshayo, okunciphisa ingozi yokuqhekeka.
✅Ukumelana Nokugqwala Nokuvundisa I-Oxidation
Kuzinzile ngamakhemikhali kuma-asidi amaningi, ama-alkali, kanye namagesi anciphisa i-oxidizing/reduction, afanele izinqubo zamakhemikhali ezinzima.
✅Ukunemba Nokuthamba Kobukhulu
Kwenziwe ngomshini ngokunemba okuphezulu, kuqinisekisa ukucutshungulwa okufanayo kanye nokuhambisana nezinhlelo ezizenzakalelayo.
✅Isikhathi Eside Sokuphila Nokusebenza Kahle Kwezindleko
Amanani aphansi okushintsha kanye nezindleko zokulungisa ezincishisiwe kwenza kube yisisombululo esingabizi kakhulu ngokuhamba kwesikhathi.

Imininingwane Yobuchwepheshe

Ipharamitha	Inani Elijwayelekile
Izinto	I-Reaction Bonded SiC / Sintered SiC
Izinga Lokushisa Eliphezulu Lokusebenza	1600–2000°C
Amandla Okugobeka	≥350 MPa
Ubuningi	≥3.0 g/cm³
Ukuqhuba Okushisayo	~120–180 W/m·K
Ubuphansi Bendawo	≤ 0.1 mm
Ubukhulu	5–20 mm (kungenziwa ngezifiso)
Ubukhulu	Okujwayelekile: 200×200 mm, 300×300 mm, njll.
Ukuqedwa Komphezulu	Kufakwe ngomshini, kupholishwe (uma kuceliwe)

Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa)

Umbuzo 1: Ingabe amathreyi e-silicon carbide angasetshenziswa ezithandweni ze-vacuum?
A:Yebo, amathreyi e-SiC afaneleka kakhulu ezindaweni zokuhlanza umoya ngenxa yokungabi negesi eningi, ukuqina kwamakhemikhali, kanye nokumelana nokushisa okuphezulu.

Umbuzo 2: Ingabe kukhona izimo noma izikhala ezenziwe ngokwezifiso?
A:Impela. Sinikeza izinsizakalo zokwenza ngokwezifiso okuhlanganisa usayizi wethreyi, ukuma, izici zobuso (isb., imifantu, imigodi), kanye nokupholisha ubuso ukuze kuhlangatshezwane nezidingo zamakhasimende ezihlukile.

Umbuzo 3: I-SiC iqhathaniswa kanjani namathreyi e-alumina noma e-quartz?
A:I-SiC inamandla aphezulu, ikwazi ukudlulisa ukushisa kangcono, futhi iyakwazi ukumelana nokushaqeka kokushisa kanye nokugqwala kwamakhemikhali. Nakuba i-alumina ingabizi kakhulu, i-SiC isebenza kangcono ezindaweni ezidinga amandla amaningi.

UMBUZO 4: Ingabe kukhona ukujiya okujwayelekile kwala mathreyi?
A:Ubukhulu buvame ukuba phakathi kuka-5–20 mm, kodwa singakulungisa ngokusekelwe kuhlelo lwakho lokusebenza kanye nezidingo zokuthwala umthwalo.

Q5: Yisiphi isikhathi esijwayelekile sokuhola samathreyi e-SiC enziwe ngokwezifiso?
A:Izikhathi zokuhola ziyahlukahluka kuye ngobunzima kanye nobuningi kodwa ngokuvamile zisukela emavikini ama-2 kuya kwangama-4 kuma-oda enziwe ngokwezifiso.

Mayelana NATHI

I-XKH igxile ekuthuthukisweni kobuchwepheshe obuphezulu, ekukhiqizweni, nasekuthengisweni kwengilazi ekhethekile ye-optical kanye nezinto ezintsha zekristalu. Imikhiqizo yethu ihlinzeka nge-optical electronics, i-consumer electronics, kanye nezempi. Sinikeza izingxenye ze-optical ze-Sapphire, izembozo zelensi yeselula, i-Ceramics, i-LT, i-Silicon Carbide SIC, i-Quartz, kanye nama-semiconductor crystal wafers. Ngobuchwepheshe obunekhono kanye nemishini esezingeni eliphezulu, sihamba phambili ekucutshungulweni komkhiqizo okungewona ojwayelekile, sihlose ukuba yibhizinisi elihamba phambili lezinto ze-optoelectronic tech.