Kuyambira pa mapaipi oyendera mpaka magalimoto atsopano amphamvu, kuyambira pa uvuni wotentha kwambiri mpaka ma satellite amlengalenga, chinthu chodziwika kuti "diamondi ya mafakitale" chikulembanso mwakachetechete malire a zinthu zamakono zopangira zinthu.Zoumbaumba za silicon carbide, chinthu cholimba kwambiri chomwe chili ndi kuuma kwachiwiri kuposa diamondi yachilengedwe, chikuyambitsa kusintha kwadzidzidzi m'magawo osiyanasiyana monga mafakitale amakono, ma semiconductors, ndege, ndi mphamvu zatsopano chifukwa cha kukana kutentha kwambiri, kukana kwamphamvu kwa kuwala kwa dzuwa, komanso kuyendetsa bwino kutentha.
Pamene 'mafupa olimba' akumana ndi kupanga kolondola
Ngati zoumba zachikhalidwe zimakhala zabuluu ndi zoyera za porcelain mu zaluso ndi zaluso, ndiye kuti zoumba za silicon carbide zimafanana ndi mawotchi aku Swiss mu zida zolondola. Kuuma kwake ndi kowirikiza katatu kapena kasanu kuposa zoumba wamba, ndipo kuuma kumeneku kofanana ndi diamondi zachilengedwe kumapangitsa kuti ntchito yopangira zinthu ikhale ngati kudula pa mbale zachitsulo - zida zodula wamba zimawonongeka mwachangu kwambiri podula. Chovuta kwambiri ndichakuti mtundu "wolimba" wa silicon carbide umapangitsa kuti ikhale yosweka ngakhale pang'ono pokonza, makamaka pazinthu zina zopyapyala zomwe zimafuna kusamala komweko monga zojambulajambula za kristalo.
Koma kufunikira kwa mafakitale amakono kukuyendetsa patsogolo ukadaulo. Mainjiniya apeza kuti chinsinsi chothetsera vutoli chili mu kuphatikiza kuuma ndi kusinthasintha: kusunga mawonekedwe amkati a chinthucho pamene mukugwiritsa ntchito njira yowongolera moyenera panthawi yokonza. Monga ophika apamwamba omwe amadziwa kutentha, njira zamakono zopangira zinthu pang'onopang'ono zimaletsa zinthu zolimbazi mwa kulamulira kutentha, kuthamanga, ndi kuchuluka kwa kugwedezeka.
Makiyi atatu otsegulira diamondi zamafakitale
1. Kupaka kotentha kwambiri
Iyi ndi njira imodzi yodziwika bwino yogwiritsira ntchito zinthu za silicon carbide ceramics. Njirayi imayika ufa wa silicon carbide kapena ufa wosakaniza mu nkhungu yotentha ndikuikonza kuti ikhale yolimba pansi pa kutentha kwambiri komanso kupanikizika. Imakhala ndi ntchito yabwino kwambiri yopanga komanso kulondola, ndipo ndi yoyenera kupanga zinthu zazikulu za silicon carbide ceramic monga zida zodulira, mbale za aluminiyamu zokokedwa ndi kutentha, ndi zina zotero.
2. Kuumba guluu
Iyi ndi njira yotsika mtengo komanso yachangu yopangira zinthu za silicon carbide ceramic. Njirayi imasakaniza ufa wa silicon carbide ndi zowonjezera zina, kuziwonjezera m'madzi kuti apange slurry, ndikuziyika mu nkhungu yopangira. Kenako, imakonzedwa ndikupangidwa kudzera mu kuumitsa ndi kutentha kwambiri, ndi nthawi yochepa yopangira komanso mtengo wotsika. Ndi yoyenera kukonzekera zida zolimba kwambiri, zolemera kwambiri komanso zida zonyamula katundu.
3. Kukonza zitsulo za ufa
Kupangira zitsulo za ufa ndi njira yosakanizira ndi kupanga ufa wa silicon carbide muyeso winawake, kenako nkuusungunula pa kutentha kwakukulu ndi kuthamanga kwambiri. Njirayi ili ndi njira yosavuta yopangira, mawonekedwe osiyanasiyana azinthu, komanso kulondola kwambiri pokonza, zomwe zimapangitsa kuti ikhale yoyenera kupanga zinthu zadothi zolondola kwambiri, zolimba kwambiri, komanso zosawonongeka.
Kuyambira zitsanzo za labotale mpaka kupanga zinthu zambiri pa mzere wopanga, kupita patsogolo kwa kukonza zinthu za silicon carbide ceramics kukutsimikizira chowonadi: palibe chinthu chomwe sichingathe kukonzedwa, koma ukadaulo womwe sunagwiritsidwe ntchito. Ndi kukhwima kwa ukadaulo watsopano monga kukonza laser ndi microwave sintering, chinthu cholimba ichi chomwe chinali chovuta kwambiri chikubwezeretsedwanso m'mafakitale anzeru, ndikuyika mphamvu yolimba mu "kupanga zinthu zanzeru zaku China".
Mu nyanja yayikulu yofufuza mlengalenga ndi mafunde obiriwira a mphamvu zoyera, ziwiya za silicon carbide zikulemba nthano yamafakitale ya nthawi ino ndi kukongola kwawo kwapadera kwa zinthu. Kulimbana kumeneku pakati pa kuuma ndi luntha kungakhale chitsanzo chosatha cha anthu omwe akudutsa malire aukadaulo.
Nthawi yotumizira: Epulo-09-2025