Rea tseba hore re atleha feela haeba re ka netefatsa tlholisano ea rona ea theko e kopaneng le boleng bo botle ka nako e le 'ngoe bakeng sa Bafani ba Phahameng ba Grey Black Silicon Carbide Sic Carborundum China High Purity, Re amohela bareki ba bacha le ba fetileng ho tsoa maemong 'ohle a bophelo ho bua le rona bakeng sa likamano tse bonahalang tsa mokhatlo nakong e tlang le ho fumana katleho e kopanetsoeng!
Rea tseba hore re atleha ha feela re ka netefatsa tlholisano ea rona ea theko e kopaneng le boleng bo molemo ka nako e le 'ngoe bakeng saChina Coating Material, Titanium Dioxide, Khamphani ea rona e tšehetsa moea oa "boqapi, kutloano, tšebelisano-'moho le ho arolelana, litsela, tsoelo-pele e sebetsang". Re fe monyetla 'me re tla paka bokhoni ba rona. Ka thuso ea hau e mosa, re lumela hore re ka theha bokamoso bo khanyang le uena hammoho.
Metswako ea khabone / khabone(e tla bitsoa "C / C kapa CFC”) ke mofuta oa thepa e kopaneng e thehiloeng khaboneng 'me e matlafatsoa ke faeba ea khabone le lihlahisoa tsa eona (preform ea faeba ea khabone). E na le inertia ea khabone le matla a phahameng a faeba ea khabone. E na le thepa e ntle ea mechini, ho hanyetsa mocheso, ho hanyetsa mafome, ho damping ha khohlano le litšobotsi tsa ho tsamaisa mocheso le motlakase.
CVD-SiCHo roala ho na le litšobotsi tsa sebopeho se ts'oanang, thepa e nyane, ho hanyetsa mocheso o phahameng, ho hanyetsa oxidation, bohloeki bo phahameng, ho hanyetsa asiti le alkali le reagent ea manyolo, e nang le thepa e tsitsitseng ea 'mele le ea lik'hemik'hale.
Ha ho bapisoa le thepa ea graphite e hloekileng haholo, graphite e qala ho oxidation ho 400C, e leng se tla baka tahlehelo ea phofo ka lebaka la oxidation, e leng se fellang ka tšilafalo ea tikoloho ho lisebelisoa tsa kantle le likamore tsa vacuum, le ho eketsa litšila tsa tikoloho e hloekileng haholo.
Leha ho le jwalo, ho kwahela SiC ho ka boloka botsitso ba mmele le ba dikhemikhale ho di-degree tse 1600, E sebediswa haholo indastering ya sejwalejwale, haholoholo indastering ya semiconductor.
Khamphani ea rona e fana ka lits'ebeletso tsa ts'ebetso ea ho koahela SiC ka mokhoa oa CVD holim'a graphite, li-ceramics le lisebelisoa tse ling, e le hore likhase tse khethehileng tse nang le carbon le silicon li arabele mochesong o phahameng ho fumana limolek'hule tsa SiC tse hloekileng haholo, limolek'hule tse behiloeng holim'a thepa e koahetsoeng, li theha lera le sireletsang la SIC. SIC e entsoeng e hokahane ka thata le motheo oa graphite, e fa motheo oa graphite thepa e ikhethang, kahoo e etsa hore bokaholimo ba graphite bo be bo kopaneng, bo se nang Porosity, bo hane mocheso o phahameng, bo hane ho ts'enyeha le ho haneloa ke oxidation.
Likarolo tse ka sehloohong:
1. Khanyetso ea ho chesoa ha oxidation mochesong o phahameng:
Khanyetso ea oxidation e ntse e le ntle haholo ha mocheso o le holimo ho fihla ho 1600 C.
2. Bohloeki bo phahameng: bo entsoe ka ho kenngoa ha mouoane ka lik'hemik'hale tlas'a boemo ba chlorination bo phahameng ba mocheso.
3. Khanyetso ea khoholeho ea mobu: ho thatafala ho hoholo, bokaholimo bo kopaneng, likaroloana tse tšesaane.
4. Ho hanyetsa mafome: asiti, alkali, letsoai le li-reagent tsa tlhaho.
Litlhaloso tse ka Sehloohong tsa Liaparo tsa CVD-SIC:
| SiC-CVD | ||
| Botenya | (g/cc)
| 3.21 |
| Matla a ho tenyetseha | (Mpa)
| 470 |
| Katoloso ea mocheso | (10-6/K) | 4
|
| Ho khanna ha mocheso | (Boemo ba leholimo/mK) | 300
|
