Mullite yog dab tsi

Mullite, tseem hu ua aluminium silicate (3Al2O3·2SiO2), yog ib hom khoom siv ceramic uas tau siv dav hauv ntau yam kev lag luam thiab kev tsim vaj tsev vim nws cov tshuaj lom neeg thiab lub cev zoo heev. Nws yog ib qho ntxhia tsis tshua muaj tshwm sim nyob rau hauv qhov xwm txheej, tab sis nws kuj tuaj yeem ua ke hauv chav kuaj.

Mullite muaj cov qauv siv lead ua tshwj xeeb uas ua rau nws tiv taus thermal shock, mechanical stress, thiab chemical corrosion. Nws tuaj yeem tiv taus qhov kub thiab txias txog li 1700 degree yam tsis muaj qhov qhia txog kev deformation lossis tawg, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv kub kub xws li cov ntaub ntawv refractory, cov rooj tog zaum, cov cuab yeej txiav, thiab cov khoom siv rau hauv cub tawg.

Mullite kuj tseem tiv taus tshuaj tua kab mob los ntawm acids, alkalis, thiab molten hlau, uas ua rau nws haum rau siv nyob rau hauv hnyav tshuaj.

Ntxiv rau nws cov thermal thiab tshuaj lom neeg zoo heev, mullite kuj yog ib qho hluav taws xob zoo thiab muaj cov thermal conductivity tsawg. Qhov no ua rau nws yog ib qho khoom siv zoo heev rau kev siv hluav taws xob kub kub xws li thermocouple tiv thaiv raj, cua sov cov ntsiab lus, thiab lub txim taws.

Mullitetuaj yeem tsim tau yooj yim rau hauv ntau yam duab thiab ntau thiab tsawg siv ntau hom kev tsim khoom xws li casting, nias, extrusion, thiab txhaj tshuaj molding. Nws kuj tseem tuaj yeem sib xyaw nrog lwm cov ntaub ntawv xws li alumina, zirconia, thiab silicon carbide los tsim cov khoom sib xyaw nrog cov khoom zoo.

Zuag qhia tag nrho, mullite yog cov khoom siv ntau yam thiab muaj txiaj ntsig uas tau siv dav hauv ntau yam kev lag luam thiab kev tsim vaj tsev vim nws zoo heev thermal, mechanical, tshuaj, thiab hluav taws xob. Nws yog ib qho tseem ceeb nyob rau hauv ntau qhov kub thiab txias thiab hnyav ib puag ncig, thiab nws cov qauv siv lead ua tshwj xeeb thiab kev tsim muaj peev xwm ua rau nws yog cov khoom siv zoo tshaj plaws rau ntau yam kev siv.