Bartilmaameedyada garaafyada waxay u qaybsan yihiin garaafka isostatic iyo graphite pyrolytic. Tafatiraha RSM ayaa si faahfaahsan u soo bandhigi doona garaafyada pyrolytic.
graphite Pyrolytic waa nooc cusub oo walxaha kaarboon ah. Waa kaarboon pyrolytic ah oo leh hanuunin sare oo crystalline kaas oo lagu kaydiyo uumiga kiimikaad ee graphite matrix at 1800 ℃ ~ 2000 ℃ gaasta hydrocarbon nadiif ah oo sare oo hoos yimaada cadaadiska foornada qaarkood. Waxay leedahay cufnaan sare (2.20g/cm³), nadiif sare (wax ku jira wasakh (0.0002%)) iyo anisotropy ee kulaylka, korantada, magnetic iyo qalabka farsamada.Tani waxay la macno tahay inay leedahay sifooyin kala duwan oo diyaarado kala duwan ah. Diyaarada C (dhammaan lakabkeeda) waxa ay leedahay kulaylka kuleylku hooseeyo, isaga oo u dhaqmaya sida insulator. Diyaaradda AB (lakabyada leh) waxay leedahay kororka kulaylka oo aad u sarreeya, oo u dhaqma sidii kaari heer sare ah. Saxanadaha garaafyada pyrolytic-ka ah iyo taargooyinkeena ayaa lagu heli karaa saddex walxood oo kala duwan: Substrate Nucleated (PG-SN), Nucleed Continuously Nucleated (PG-CN), iyo Substrate High Conductivity Nucleated (PG-HT). Walxaha Nukliyeerka ah ee Joogtada ah (PG-CN) waxay leeyihiin sifooyin jireed 15-20% ka sarreeya kan Substrate Nucleated. Kaarboon Pyrolytic ee lagu soo saaro sariirta dareeraha ah ayaa inta badan loo isticmaalaa dahaadhka dusha sare ee qaybaha shidaalka nukliyeerka si looga hortago daadinta alaabta fission. Intaa waxaa dheer, waxaa sidoo kale loo isticmaalaa in lagu sameeyo waalka xarunta carbon macmal ah, dhalista, iwm. Pyrolytic graphite soo saaray by non fluidized sariirta waxaa loo isticmaalaa dahaarka cunaha ee sanka gantaal, kubbadda diamagnetic ee xakamaynta dabeecadda dayax-gacmeedka, shabagga tube elektarooniga ah, crucible ee dhalaalaysa sare- Bir nadiif ah, burush loogu talagalay xakamaynta danab, qolka dheecaanka laser, walxaha dahaarka kulaylka ee foornada heerkulka sare, xaashida epitaxial ee semiconductor wax soo saar iwm.
Waqtiga boostada: Dec-14-2022