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Koj Txoj Haujlwm : Tsev > Blog

Dab tsi yog cov yam ntxwv ntawm silicon carbide?

Hnub tim: Dec 3rd, 2022
Nyeem:
Qhia:

1. Kev ntseeg tau zoo.

Boiling hauv sulfuric acid, hydrochloric acid thiab hydrofluoric acid tsis yooj yim rau etched. SiC tsis hnov ​​​​mob nrog magnesium chloride ntawm qhov kub thiab txias, yog li nws muaj kev tiv thaiv zoo rau acid residue. Cov tshuaj tiv thaiv ntawm SIC thiab txiv qaub hmoov maj mam loj hlob ntawm 525 thiab dhau los ua pom tseeb nyob ib puag ncig 1000, thaum cov tshuaj tiv thaiv ntawm SIC thiab tooj liab oxide txhim kho pom tseeb ntawm 800. Ntawm 1000-1200 nws tau cuam tshuam nrog hlau oxide, thiab ntawm 1300 nws tau pom zoo cleaved. Cov tshuaj tiv thaiv nrog chromium oxide maj mam hloov ntawm 1360 degrees mus rau cov tshuaj tiv thaiv tawg. Hauv hydrogen, silicon carbide los ntawm 600 maj mam cuam tshuam nrog nws, ntawm 1200 hloov mus rau hauv silicon tetrachloride thiab carbon tetrachloride. Molten alkali tuaj yeem yaj SiC thaum kub taub hau.

2. Oxidation tsis kam

Silicon carbide muaj oxidation zoo nyob rau hauv chav tsev kub, thiab cov residual silicon, carbon thiab hlau oxide muaj feem xyuam rau cov huab cua oxidation theem ntawm silicon carbide. Ntshiab silicon carbide tuaj yeem siv tau zoo nyob rau hauv huab cua oxidation huab cua ntawm 1500, thiab silicon carbide nrog qee qhov seem yuav raug oxidized hauv 1220.

3, zoo thermal shock kuj.

Silicon carbide plooj (porcelain) vim hais tias nyob rau hauv qhov kub tsis tu ncua tsis yaj thiab yaj chav, muaj thermal poob siab zoo dua, thiab muaj thermal conductivity thiab tsis muaj hluav taws xob.