Izingxenye ezimise okwe-Silicon Carbide Ceramic Special{0}

 

I-Silicon carbide ceramic,{0}}izinto ezisebenza ngokunemba eziphezulu, eziziqhayisa ngokuminyana okukhethekile, ukumelana nokugqokwa, ukuguquguquka kwe-thermal, kanye nokumelana nokushaqeka kwe-thermal. Ngokumelana ne-oxidation okuqinile, igcina amandla okugoba aphakeme emazingeni okushisa aphezulu kuyilapho ibonisa ukusebenza okuzinzile ngokuhamba kwesikhathi. Ukumelana nokugqwala kwayo okuvelele, ukumelana nokugqwala kwamakhemikhali, ubulukhuni obuphezulu, nokuzinza kwemishini kuyenze yasetshenziswa kabanzi ekusetshenzisweni kwezimoto kuzo zonke izimoto zamandla amasha, amakhemikhali e-petrochemicals, ukuvikelwa kwemvelo, kanye nobunjiniyela be-elekthronikhi. Sihlinzeka ngemikhiqizo eyenziwe ngezifiso ye-silicon carbide ceramic ehlanganisa izindandatho zokuvala, imibhobho, amadiski, amashubhu, izisekelo, nezingalo ukuze kuhlangatshezwane nezidingo ezihlukahlukene zohlelo lokusebenza.

 

 

 

 

Isakhiwo se-silicon carbide kanye nezakhiwo

I-Silicon carbide (SiC), eyakhiwe nge-silicon ne-carbon, iyinhlanganisela ye-polymorphic etholakala ngokuyinhloko ngezindlela ezimbili: -I-SiC (izinga lokushisa eliphezulu-elizinzile) kanye -ne-SiC ({3}}izinga lokushisa eliphansi). Ngaphezu kwama-polymorphs angu-200 akhona, nezinhlobo ezimele i-3C-SiC ku--SiC ne-2H-SiC, 4H-SiC, 6H-SiC, ne-15R-SiC ku--SiC. Ngaphansi kuka-1600℃degree , i-SiC ikhona njengokuthi -i-SiC futhi ingahlanganiswa kusuka ku-silicon elula{21}kumixube yekhabhoni engaba ngu-1450℃degree . Ngaphezulu kuka-1600℃degree , -I-SiC kancane kancane ishintsha ibe -ama-SiC polymorphs. 4H{28}}I-SiC yakheka kalula ngo-2000℃degree , kuyilapho ama-polymorphs angu-6H no-15R adinga amazinga okushisa angaphezu kuka-2100℃ukuze akhe. Ngokuphawulekayo, i-6H-i-SiC ihlezi izinzile ngaphezu kuka-2200℃degree , okuyenza isetshenziswe kabanzi ezinhlelweni zemboni. I-Pure SiC ibonakala njengamakristalu angenambala, kuyilapho imboni{{38}ibanga le-SiC libonisa imibala esukela kokungenambala ukuya kokumnyama, nokubonisa ngale kwehla kancane kancane. Kuma-abrasives, i-SiC ihlukaniswa ngombala ibe izinhlobo ezimnyama neziluhlaza. I-Green SiC ihlanganisa okuhlukile okungenambala ukuya kokuluhlaza okumnyama, kanti okuluhlaza{41}}okuluhlaza kuya kokumnyama okwe-SiC emnyama. KokubiliI-SiC emnyama neluhlaza ingamakristalu angama-hexagonal -ye-SiC, ane-SiC micro-eluhlaza okotshani okusebenza njengezinto ezingavuthiwe eziyinhloko zezitsha eziningi zobumba ze-SiC.

Inqubo yokulungiselela i-silicon carbide ceramic

I-silicon carbide (SiC) izinto zobumba ze-ceramic zikhiqizwa ngenqubo elandelayo: izinto ze-SiC ezingavuthiwe ziyachotshozwa, zigaywe, futhi zihlukaniswe ukuze kutholwe izinhlayiya ze-SiC ezinosayizi ofanayo. Lezi zinhlayiya zibe sezixutshwa nezithasiselo ze-sintering kanye nezibophezelo zesikhashana ukuze zakhe imizimba eluhlaza, ebuye ifakwe emanzini emazingeni okushisa aphezulu. Kodwa-ke, ngenxa yemvelo yokusebenzelana okuphezulu kwamabhondi e-Si-C (cishe ama-covalent angu-88%) kanye ne-coefficient yawo ephansi yokusabalalisa, enye yezinselele eziyinhloko ekukhiqizeni ukuzuza ukuminyana okwanele kwe-sintering. -Amaceramics e-SiC aminyana aphezulu angalungiselelwa kusetshenziswa izindlela ezihlukahlukene ezihlanganisa ukusabela, i-sinterless sintering, i-atmospheric sintering, i-hot pressing, i-recrystallization sintering, i-hot isostatic pressing, kanye ne-discharge plasma sintering. Noma kunjalo, ama-ceramics e-SiC abonisa ukuqina kokuphuka okuphansi kanye nokuqina okuphezulu. Ukubhekana nalokhu, iminyaka yamuva ibone ukuvela kwe-ceramics eyinhlanganisela esekelwe ku-SiC, njengaleyo eqiniswe ngemicu (noma amadevu), iqiniswe ngokuhlakazeka kwezinhlayiyana ezihlukahlukene, futhi ithuthukiswe ibe yizinto ezisebenzayo ze-gradient, konke okuthuthukisa kakhulu ukuqina namandla ezingxenye ngazinye.

Isicelo nentuthuko yethemba le-silicon carbide ceramics

Njengomsebenzi-wokusebenza okuphezulu kwe-ceramic material, i-silicon carbide iye yasetshenziswa ngokwandayo emikhakheni ehlukahlukene ehlanganisa{1}}ama-temperature okushisa aphezulu, i-steel metallurgy, amakhemikhali e-petrochemicals, imishini nezinto zikagesi, i-aerospace, amandla nokuvikelwa kwemvelo, amandla enuzi, nezimboni zezimoto. Ngamazinga akhulayo okungena ezimotweni zamandla amasha, imikhakha yamandla, izinhlelo zokusebenza zezimboni, kanye nezokuxhumana, okuhambisana nezimfuneko eziqinile zokunemba okuphezulu, ukuguga{4}}okungagugi, nezinsimbi ezithembekile noma izingxenye zikagesi kuzo zonke izimboni, usayizi wemakethe wemikhiqizo ye-silicon carbide kulindeleke ukuthi uqhubeke nokunwetshwa. Ngokuphawulekayo, izimoto ezintsha zamandla kanye nezicelo ze-photovoltaic zigqama njengezindawo ezibalulekile zokukhula kulo mkhakha.

Ukwenza ngokwezifiso iziphambeko ezihlukahlukene ze-silicon carbide ceramic

kungani ukhethe thina

 

Impendulo esheshayo Imikhiqizo enezindleko eziphezulu Imikhiqizo enezindleko eziphezulu zokusebenza

kungani ukhethe imikhiqizo yethu

 

1. 20 isipiliyoni seminyaka ku-cast iron plate, ukuqinisekiswa kwekhwalithi, ukulethwa ngesikhathi
2. Umshini ophelele kanye nemishini yokuhlola ingahlinzeka ngokuqondile izingxenye eziqediwe futhi ihlangabezane nezidingo zokuhlola zamakhasimende
3. Inamalungelo azimele okungenisa nokuthekelisa futhi ingathumela imikhiqizo kuzo zonke izingxenye zomhlaba

Amashadi ashisayo: i-silicon carbide ceramic special-izingxenye ezimile, i-China silicon carbide ceramic special-abakhiqizi bezingxenye ezimile, abahlinzeki, imboni