Cov ntaub ntawv ceramic, raws li cov ntaub ntawv tseem ceeb engineering, muaj kev siv dav hauv ntau qhov chaw. Txawm li cas los xij, ntau tus neeg yuav tsis nkag siab txog lub ntsiab lus thiab qhov sib txawv ntawm cov yam ntxwv tseem ceeb ntawm cov khoom siv ceramic xws li lub zog, tawv, hardness, thiab brittleness.
Lub zog ntawm cov khoom siv ceramic
Lub zog ntawm cov ntaub ntawv ceramic hais txog lawv lub peev xwm los tiv thaiv kev puas tsuaj los ntawm sab nraud quab yuam. Nws tuaj yeem muab faib ua hom hauv qab no:
1. Compressive Strength: Qhov no yog lub zog ntawm cov ntaub ntawv ceramic nyob rau hauv compressive loads. Ceramic cov ntaub ntawv feem ntau muaj lub zog compressive siab, uas yog ib qho tseem ceeb kom zoo dua hauv qee qhov kev siv cov qauv.
2. Tensile Strength: Qhov no yog lub zog ntawm cov ntaub ntawv ceramic nyob rau hauv tensile loads. Piv nrog rau lub zog compressive, lub zog tensile ntawm cov ntaub ntawv ceramic feem ntau qis dua, uas kuj yog qhov tsis muaj zog ntawm cov ntaub ntawv ceramic.
3. Flexural Strength: Qhov no yog lub zog ntawm cov ntaub ntawv ceramic nyob rau hauv bending loads. Nws qhia txog lub peev xwm ntawm cov ntaub ntawv ceramic los tiv thaiv dabtsi yog khoov deformation.
Lub zog ntawm cov ntaub ntawv ceramic feem ntau yog nyob ntawm lawv cov tshuaj muaj pes tsawg leeg, microstructure, thiab kev tsim khoom. Los ntawm tsim nyog tsim thiab optimization, lub zog ntawm cov ntaub ntawv ceramic tuaj yeem txhim kho.
Kev nruj ntawm cov khoom siv ceramic
Cov tawv nqaij ntawm cov khoom siv ceramic hais txog lawv qhov tsis kam rau deformation. Nws yog ze ze rau lub elastic modulus ntawm cov khoom. Qhov siab dua qhov elastic modulus, qhov nruj ntawm cov khoom ntau dua. Cov tawv nqaij qhia txog lub peev xwm ntawm cov ntaub ntawv ceramic los tuav lawv cov duab hauv kev ntxhov siab. Piv nrog rau cov khoom siv hlau, cov khoom siv ceramic feem ntau muaj qhov nruj dua, uas ua rau lawv muaj txiaj ntsig zoo hauv cov ntawv thov uas xav tau kev ruaj ntseg siab.
Hardness ntawm cov khoom siv ceramic
Lub hardness ntawm cov ntaub ntawv ceramic yog hais txog lawv cov kev tiv thaiv rau lub zos indentation deformation los yog khawb. Hardness yog ib qho tseem ceeb ntawm cov khoom siv ceramic, feem ntau txiav txim siab los ntawm kev sim hardness. Cov txheej txheem rau kev kuaj ceramic hardness muaj xws li Vickers hardness thiab Mohs hardness. Lub hardness ntawm cov ntaub ntawv ceramic yog ze ze rau lawv cov microstructure, tshuaj sib txuas, thiab lwm yam. Feem ntau, cov ntaub ntawv ceramic muaj hardness siab, uas ua rau lawv tseem ceeb hauv daim ntawv thov yuav tsum hnav tsis kam thiab machining.
Brittleness ntawm cov khoom siv ceramic
Lub brittleness ntawm cov ntaub ntawv ceramic hais txog lawv txoj kev nyiam tawg nyob rau hauv sab nraud quab yuam. Piv nrog rau cov khoom siv hlau, cov ntaub ntawv ceramic yog cov nkig ntau dua, txhais tau tias lawv muaj feem cuam tshuam rau kev puas tsuaj los yog overload. Brittleness yog ib yam khoom ntawm cov khoom siv ceramic, tab sis nws tuaj yeem txhim kho los ntawm txoj hauv kev xws li ntxiv cov theem ntxiv thiab tswj cov microstructure.
