Chiyambi cha zokutira za semiconductor-grade glassy carbon

I. Chiyambi cha kapangidwe ka kaboni wagalasi

Makhalidwe:

(1) Pamwamba pa kaboni wagalasi ndi wosalala komanso wopangidwa ndi galasi;

(2) Galasi wagalasi ali ndi kuuma kwakukulu komanso kutsika kwafumbi;

(3) Kaboni wagalasi ali ndi mtengo waukulu wa ID / IG ndi digiri yotsika kwambiri ya graphitization, ndipo ntchito yake yotsekemera yotentha imakhala yabwinoko;

(4) Galasi wagalasi ndi mpweya wovuta ku graphitize wokhala ndi kutentha kwapamwamba komanso kukhazikika kwamphamvu pa kutentha kwakukulu;

(5) Mpweya wagalasi uli ndi malo ang'onoang'ono ochitapo kanthu komanso kukana kwa dzimbiri kwa mankhwala, komanso kugonjetsedwa ndi kukokoloka kwa mpweya, silicon, ndi zina zotero.

II. Chiyambi cha zokutira magalasi carbon

Ma pores a pamwamba pa zokutira za flake graphite amagawidwa ndipo kapangidwe kake kamakhala kotayirira, pomwe kapangidwe ka kaboni wagalasi kamakhala kolimba ndipo sikugwa!

1. Anti-oxidation ntchito ya galasi ❖ kuyanika mpweya

(1)Laminated anamva kwambiri
Kupaka kaboni wagalasi kumathandizira bwino ntchito ya anti-oxidation yakumva molimba;

(2)Short fiber hard kumva
Zomwe zimamveka zimakhala ndi porosity yapamwamba ndipo zimapereka njira za oxygen; Chophimba cha graphite cha flake chimakhala ndi mawonekedwe otayirira, njira zochepa za okosijeni, komanso magwiridwe antchito oletsa okosijeni; zokutira za kaboni wagalasi zokutira zili ndi mawonekedwe owundana, njira zochepera za okosijeni, komanso magwiridwe antchito abwino kwambiri a anti-oxidation.

2. Kukhazikika kwa kutentha kwapamwamba kwa zokutira zagalasi za kaboni motsutsana ndi ablation
Kapangidwe ka porous kamvekedwe bwino kumatha kuchepetsa kutentha (kutentha kwa convection kutentha); pepala la graphite limakonda kuphulika likachotsedwa; kuya kwake kwa magalasi okutikira kwa kaboni ndiko kuzama kwambiri, ndipo kukana kwake kumatulutsa ndikolimba kwambiri; zokutira zamagalasi za kaboni zimakhala ndi ntchito yabwino yotchinjiriza kutentha.

3. Anti-Si kukokoloka ntchito magalasi ❖ kuyanika mpweya
Ulusi waufupi wovuta kumva umakokoloka ndikuwotchedwa ndi Si; flake graphite ❖ kuyanika ali kukana kukokoloka kwa Si mu nthawi yochepa; zokutira zamagalasi za kaboni zimakhala ndi ntchito yabwino kwambiri yotsutsa kukokoloka.

Chifukwa chachikulu cha kukokoloka kwa Si ndikuti Si gasification imawononga mwachindunji pamwamba pa zolimba, zomwe zimapangitsa kuti ufa; pomwe mawonekedwe a kaboni opaka magalasi a kaboni amakhala okhazikika komanso ali ndi ntchito yabwino yotsutsa kukokoloka.

Chidule

Makina opaka magalasi a kaboni samangogwiritsidwa ntchito pazinthu zotenthetsera zotenthetsera, komanso akuyembekezeka kugwiritsidwa ntchito mwachindunji pamwamba pazigawo za graphite ndiZigawo za C/C, kuwongolera bwino ntchito yokwanira yautumiki wa nkhaniyo.