Video: Lwm lub npe rau amorphous solids yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyob rau hauv condensed teeb meem physics thiab cov ntaub ntawv science, ib amorphous (los ntawm Greek a, tsis muaj, morphé, puab, daim ntawv) lossis tsis-crystalline khov kho yog a khov kho uas tsis muaj qhov kev txiav txim ntev ntev uas yog tus yam ntxwv ntawm cov siv lead ua. Hauv qee cov ntawv qub, cov lub sij hawm tau siv synonymously nrog iav.
Hais txog qhov no, cov piv txwv ntawm amorphous solids yog dab tsi?
Amorphous solids suav nrog ob qho tib si natural thiab man-made cov ntaub ntawv. Qhov feem ntau hais piv txwv ntawm ib amorphous khoom yog iav. Txawm li cas los xij, amorphous khoom muaj ntau rau tag nrho cov subsets ntawm cov khoom khib nyiab . Ntxiv piv txwv xws li nyias zaj duab xis lubricants, tsom iav hlau, polymers, thiab gels.
Ib yam li ntawd, ntoo puas yog amorphous khoom? Crystalline cov khoom khib nyiab suav nrog pob zeb, ntoo , ntawv thiab paj rwb. Cov no cov khoom khib nyiab yog tsim los ntawm atoms teem nyob rau hauv ib tug meej qauv. Thaum crystalline cov khoom khib nyiab yog rhuab, hloov mus rau cov kua, hu ua melting, yog ntse thiab meej. Amorphous solids suav nrog roj hmab, iav thiab sulfur.
Ib yam li ntawd ib tug yuav nug, dab tsi yog txhais los ntawm amorphous solids?
Amorphous solids yog hom khov kho uas tsis muaj txhais nyob rau hauv cov duab, qauv thiab ntev-ntev kev txiav txim. Lawv yog opposite rau crystalline cov khoom khib nyiab ,qus a txhais shape, qauv, thiab ntev ntau yam kev txiav txim. Amorphous solids tsis muaj ib tug zoo- txhais melting point.
Dab tsi yog qhov txawv ntawm cov khoom amorphous thiab crystalline khoom?
Qhov txawv ntawm Crystalline thiab Amorphous Khoom Crystals muaj kev sib koom ua ke ntawm lawv cov khoom siv. Hauv kev sib piv, amorphous khoom tsis muaj kev npaj li ntawd. Lawv cov khoom yog random organised. Crystalline solids cleavage (so) raws cov ntsiab lus tshwj xeeb thiab cov lus qhia.
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