Zvinangwa zvegraphite zvakakamurwa kuita isostatic graphite uye pyrolytic graphite.Mupepeti weRSM achasuma pyrolytic graphite zvakadzama.
Pyrolytic graphite rudzi rutsva rwekabhoni zvinhu.I pyrolytic carbon ine high crystalline orientation iyo inoiswa nekemikari mhute pa graphite matrix pa 1800 ℃ ~ 2000 ℃ nekuchena kwakanyanya kwe hydrocarbon gasi pasi peimwe dzvinyiriro yevira.Iine high density (2.20g/cm³), kuchena kwakanyanya (kusvibiswa kwemukati (0.0002%)) uye anisotropy yekupisa, magetsi, magnetic uye mechanical properties.Izvi zvinoreva kuti ine zvinhu zvakasiyana-siyana kune dzimwe ndege dzakasiyana.Mundege yeC (mumativi ayo) ine yakaderera thermal conductivity, ichiita se insulator.Mundege yeAB (ine matinji) ine yakanyanya kupisa conductivity, ichiita seyakanakisa conductor.Yedu pyrolytic graphite discs uye mahwendefa anowanikwa mune matatu akasiyana zvinhu: Substrate Nucleated (PG-SN), Inoenderera Nucleated (PG-CN), uye Yakakwira Conductivity Substrate Nucleated (PG-HT).Kuenderera mberi Nucleated (PG-CN) zvinhu zvine maitiro emuviri 15-20% yakakwirira kupfuura iyo ye Substrate Nucleated.Pyrolytic kabhoni inogadzirwa mu fluidized bed inonyanya kushandiswa kuvhara pamusoro pemafuta enyukireya particles kudzivirira kubuda kwefission products.Pamusoro pezvo, inoshandiswawo kugadzira artificial carbon centre valve, bearing, etc. Pyrolytic graphite inogadzirwa nenon fluidized bed inoshandiswa pahuro ye rocket nozzle, diamagnetic ball for satellite attitude control, electron tube grid, crucible for smelting high- purity simbi, bhurashi remagetsi regulator, discharge chamber yelaser, thermal insulation material for high-temperature furace, epitaxial sheet for semiconductor production, etc.
Nguva yekutumira: Zvita-14-2022