Lowani mu "Njira Yotentha Yotentha Kwambiri" ya Silicon carbide Ceramics - Kuvumbulutsa Torch ya Usiku Wamdima wa Makampani Amakono

M'magawo otsogola monga ma semiconductors, mphamvu zatsopano, ndi zakuthambo, zida za ceramic zakuda zimagwira ntchito mwakachetechete. Zili chonchosilicon carbide ceramic- chinthu chokhala ndi kuuma kofanana ndi diamondi, zomwe zikusintha nkhope yamakampani amakono ndendende chifukwa cha kukana kwake kutentha kwambiri, kukana kwa dzimbiri komanso matenthedwe apamwamba kwambiri. Koma chosadziwika bwino ndi chakuti kusintha silicon carbide ufa wolimba kukhala zipangizo zolondola, njira yamatsenga "yotentha kwambiri" imafunika.

I. Sintering Process: Matsenga Ofunika Kwambiri Pakutembenuza Miyala kukhala golide
Ngati silicon carbide ufa akufaniziridwa ndi yade wosapukutidwa, ndondomeko sintering ndi njira kiyi kuti awumbe kukhala mankhwala abwino. Kupyolera mu kutentha kwakukulu kwa 800-2000 ℃, tinthu tating'ono tating'ono tating'ono tating'ono tating'ono timagwiranso chanza "pamlingo wa atomiki, kupanga thupi lolimba komanso lolimba la ceramic. Njira zosiyanasiyana zopangira sintering, monga njira zosiyanasiyana zogoba, zimapatsa zida zokhala ndi mawonekedwe apadera:
1. Atmospheric pressure sintering: Nthawi zambiri “kuwotcha pang’onopang’ono pa kutentha pang’ono”
Monga momwe msuzi wokoma wophikidwa pang'onopang'ono umafunika kuuthira kutentha pang'ono, izi zimapangitsa kuti ufawo ukhale wochuluka chifukwa cha kutentha kwa nthawi yaitali. Ngakhale kuti kuzungulirako ndi kwautali, kumatha kusunga "kununkhira koyambirira" kwazinthuzo ndipo ndikoyenera kwambiri pazida za semiconductor zokhala ndi zofunikira zoyera.
2. Hot-pressing sintering: Njira yoyendetsedwa bwino ndi "high-pressure forging"
Kugwiritsira ntchito makina othamanga kumalo otentha kwambiri kuli ngati kupereka molondola "masisitere otentha a compress" kuzinthu, zomwe zingathe kuthetsa mwamsanga voids mkati. Magawo a ceramic omwe amapangidwa ndi njirayi amakhala ndi kachulukidwe pafupi ndi mtengo waukadaulo ndipo ndi chisankho chabwino popanga ma fani ndi zisindikizo zolondola.
3. Reaction Sintering: "Chemical Magic" m'dziko lazinthu
Pogwiritsa ntchito mwanzeru momwe zimachitikira pakati pa silicon ndi kaboni, ma voids amadzadzidwa okha panthawi ya sintering. "Kudzichiritsa" kumeneku kumapangitsa kukhala chida champhamvu chopangira zida zovuta komanso zosasinthika, zoyenera kutengera zinthu zosiyanasiyana zothana ndi kutentha kwambiri, zosavala, zolimbana ndi dzimbiri kapena zida zina zosinthidwa.
Ii. Kusankha Njira: Nzeru Zokonzekera Kuti Zigwirizane
Monga momwe osoka akuluakulu amasankha masititchi kutengera mawonekedwe a nsalu, mainjiniya amayenera kuganizira mozama zomwe zimafunikira:
Mukamagwira ndi magawo owoneka bwino okhala ndi mipanda yopyapyala, "ukadaulo wolowera" wa reaction sintering utha kukhala ndi mawonekedwe abwino.
Ma tray a semiconductor omwe ali ndi zofunikira kwambiri pamawonekedwe otsika kwambiri amatha kuwonetsetsa kuti zero kusinthika kudzera pakukakamiza kwanthawi zonse.
Pochita ndi zida zolemetsa kwambiri, kachulukidwe kopitilira muyeso wa sintering yotentha nthawi zambiri amasankhidwa.
Iii. Kupambana Kwambiri Kwaukadaulo Wosawoneka
M'mbiri yachisinthiko ya teknoloji ya sintering, zatsopano ziwiri zobisika ndizofunikira kwambiri: kuwonjezera pang'ono kwa sintering AIDS kuli ngati "glue molekyulu", yomwe imachepetsa kugwiritsa ntchito mphamvu pamene ikulimbikitsa mphamvu; Dongosolo lowongolera kutentha kwa digito limafanana ndi "wophika wanzeru", yemwe amasunga kusinthasintha kwa kutentha mkati mwa ± 5 ℃ ndikuwonetsetsa kuti gulu lililonse lazinthu zikuyenda bwino.

Kuchokera m'mafakitale osavala komanso osagwirizana ndi dzimbiri mpaka mafakitale apamwamba a semiconductor, zoumba za silicon carbide zikukonzanso mawonekedwe amakampani amakono. Kupititsa patsogolo luso laukadaulo wa sintering kuli ngati kupereka mapiko kuzinthu zamatsengazi, kuzipangitsa kuti ziwuluke mumlengalenga mokulirapo. Monga katswiri wopanga zida zomangira za silicon carbide ceramics kwazaka zopitilira khumi, Shandong Zhongpeng amamvetsetsa bwino zokambirana pakati pa zida ndi kuwongolera kutentha kuposa wina aliyense. Kukonzekera kulikonse kwa sintering curve ndikukonzanso kagawo kakang'ono kagolide ka "temperature-pressure-time". Kuthwanima kwa ng'anjo iliyonse ndi ng'anjo yamoto kukupitiriza kulemba mutu wa chisinthiko cha zoumba zamafakitale. Kudalira pa chidaliro cha kafukufuku wodziyimira pawokha ndi chitukuko ndi matekinoloje angapo ovomerezeka, timadzipereka nthawi zonse kupatsa makasitomala njira imodzi yokha kuchokera ku zoyeretsera zopangira mpaka kupukuta kolondola, kuwonetsetsa kuti chinthu chilichonse cha silicon carbide ceramic chimakhala ndi kutentha kwa zaka khumi zaukadaulo. Njira yakutsogolo imakhala yocheperako, ndipo kudzera mukupanga mobwerezabwereza, imakhala yatsopano. Tikukupemphani moona mtima kuti mudzakhale nafe kuchitira umboni mmene kuwala kwanzeru kumeneku m’zoumba zamafakitale kumaunikira zinthu zina zosatheka. Nthawi zonse timakhulupirira kuti kupita patsogolo kulikonse mu sayansi yazinthu kukuwonjezera mphamvu kuti anthu athe kudutsa malire aukadaulo.