Alumina ceramics: cov khoom siv uas tsis yooj yim hnav nrog cov khoom siv tshuaj ruaj khov

Hauv kev tshawb fawb txog cov ntaub ntawv, peb ib txwm nrhiav cov ntaub ntawv tshiab uas muaj cov yam ntxwv zoo heev thiab ruaj khov. Ntawm lawv, alumina ceramics yog siv dav hauv ntau qhov chaw vim lawv cov khoom siv lub cev thiab tshuaj zoo heev, nrog rau kev tiv taus kub siab thiab kev tiv taus corrosion. Niaj hnub no, cia peb saib ze dua txog kev ruaj khov tshuaj ntawm alumina ceramics.

Ua ntej tshaj plaws, kev ruaj khov tshuaj lom neeg ntawmalumina ceramicsfeem ntau pom tseeb hauv nws txoj kev tiv thaiv rau feem ntau cov kua qaub, cov hauv paus thiab cov oxidants. Qhov no yog vim tias cov qauv ntawm alumina ceramics nruj thiab qhov sib txuas ntawm cov molecules muaj zog, uas ua rau nws muaj peev xwm tswj nws cov duab qub thiab cov khoom hauv feem ntau qhov chaw nyuaj. Qhov kev ruaj khov no ua rau alumina ceramics siv dav hauv tshuaj lom neeg, roj av, metallurgy thiab lwm yam lag luam.

Qhov thib ob, qhov kev ruaj khov tshuaj lom neeg ntawm alumina ceramics kuj pom tseeb hauv nws cov khoom antioxidant. Nyob rau hauv qhov kub siab, ntau cov ntaub ntawv yuav ua rau muaj kev cuam tshuam nrog oxygen, ua rau lawv cov qauv thiab cov khoom hloov pauv. Txawm li cas los xij, alumina ceramics tseem ruaj khov hauv qhov chaw ib puag ncig no thiab tsis ua rau muaj kev cuam tshuam nrog oxygen. Qhov kev tiv thaiv oxidation no ua rau alumina ceramics ua lub luag haujlwm tseem ceeb hauv aerospace, tub rog thiab lwm yam teb.

Tsis tas li ntawd xwb, qhov kev ruaj khov ntawm cov tshuaj alumina ceramics kuj pom tseeb hauv nws cov kua qaub thiab alkali corrosion tsis kam. Hauv peb lub neej txhua hnub, cov kua qaub thiab cov hauv paus yog cov khoom siv dav dav, thiab lawv muaj cov teebmeem corrosive rau ntau cov ntaub ntawv. Txawm li cas los xij, alumina ceramics muaj peev xwm tiv taus acid thiab alkali corrosion thiab tswj lawv cov khoom qub thiab cov qauv. Qhov kev tiv thaiv acid thiab alkali corrosion no ua rau alumina ceramics siv dav hauv kev ua zaub mov, chemistry, kev kho mob thiab lwm yam teb.

Feem ntau, cov khoom siv tshuaj lom neeg ntawm alumina ceramics ruaj khov, yog li lawv tuaj yeem tswj tau qhov ua tau zoo thiab cov duab hauv ntau qhov chaw nyuaj. Qhov kev ruaj khov no ua rau alumina ceramics siv dav hauv ntau qhov chaw.