Dab tsi yog cov yam ntxwv ntawm ceramics?

Mechanical zog
Cov ntaub ntawv ceramic yog cov khoom siv nrog qhov zoo tshaj plaws tawv thiab siab tshaj plaws ntawm cov khoom siv engineering, thiab lawv cov hardness feem ntau yog siab dua 1500HV. Ceramics muaj lub zog compressive siab, tab sis tsis tshua muaj zog tensile, tsis zoo plasticity thiab toughness.
Cov yam ntxwv thermal
Cov ntaub ntawv ceramic feem ntau muaj qhov siab melting point (feem ntau siab dua 2000 degree) thiab zoo heev tshuaj stability ntawm kub kub; Cov thermal conductivity ntawm ceramics yog qis dua li cov ntaub ntawv hlau, thiab ceramics tseem yog cov ntaub ntawv rwb thaiv tsev zoo. Nyob rau tib lub sij hawm, cov linear expansion coefficient ntawm ceramics yog qis dua li ntawm cov hlau, thiab ceramics muaj qhov zoo stability thaum kub hloov.
Cov yam ntxwv hluav taws xob
Feem ntau cov ceramics muaj hluav taws xob zoo, yog li lawv tau siv dav hauv kev tsim cov khoom siv rwb thaiv tsev nrog ntau qhov voltages (1kV ~ 110kV). Ferroelectric ceramics (Barium titanate BaTiO3) muaj qhov siab dielectric tas li thiab tuaj yeem siv los ua cov capacitors. Nyob rau hauv qhov kev txiav txim ntawm ib qho hluav taws xob sab nraud, ferroelectric ceramics kuj tuaj yeem hloov cov duab thiab hloov hluav taws xob rau hauv cov khoom siv hluav taws xob (nrog cov yam ntxwv ntawm cov ntaub ntawv piezoelectric), uas tuaj yeem siv los ua nrov nrov, phonographs, ultrasonic meters, sonar, kho mob spectrographs, thiab lwm yam. Ob peb ceramics kuj muaj cov yam ntxwv ntawm semiconductors thiab tuaj yeem siv los ua cov khoom siv hluav taws xob.
tshuaj muaj zog
Cov ntaub ntawv ceramic tsis yooj yim oxidized ntawm qhov kub thiab txias thiab muaj corrosion kuj zoo rau cov kua qaub, alkalis, thiab ntsev.
optical yam ntxwv
Cov ntaub ntawv ceramics kuj muaj cov khoom siv kho qhov muag tshwj xeeb, uas tuaj yeem siv los ua cov khoom siv laser, cov khoom siv fiber ntau, cov khoom siv kho qhov muag, thiab lwm yam. Cov pob tshab ceramics tuaj yeem siv rau siab - siab sodium teeb raj, thiab lwm yam. Sib nqus ceramics (ferrites xws li MgFe2O4, CuFe2O4, Fe3O4) muaj qhov dav dav hauv daim kab xev, kev siv cov ntaub ntawv tseem ceeb, kev siv lub tshuab computer. nco Cheebtsam.