Qhov sib txawv tseem ceeb ntawm qhov chaw lattice thiab qhov chaw nruab nrab yog qhov chaw lattice yog txoj haujlwm ntawm cov khoom siv hauv cov siv lead ua lattice, whereas qhov chaw interstitial yog ib txoj haujlwm ntawm cov haujlwm tsis tu ncua hauv cov khoom siv ntawm cov khoom siv lead ua uas tuaj yeem ua tau. yuav nyob los ntawm lwm yam hais.
Crystal lattices yog kev npaj ntawm cov khoom (xws li atoms, ions lossis molecules) hauv cov muaju. Crystals yog cov khoom siv uas muaj cov khoom siv hauv kev txiav txim siab heev. Muaj cov ntsiab lus sib txawv uas peb tuaj yeem tham txog kev siv lead ua lattice: lattice site, interstitial site, void, crystal defects yog cov ntsiab lus.
Lattic Site yog dab tsi?
Lattice site yog txoj haujlwm ntawm cov khoom sib xyaw, atoms, molecules, lossis ions hauv cov iav siv lead ua. Yog li ntawd, ib tug lattice site muaj ib tug series ntawm cov ntsiab lus uas muaj ib tug kev npaj ntawm ib tug tshwj xeeb qauv nrog siab symmetry. Peb tuaj yeem soj ntsuam qhov chaw lattice nkaus xwb los ntawm lub tshuab tsom iav vim tias lawv yog feeb thiab tsis pom qhov muag liab qab.
Lattices qhov chaw yog nyob los ntawm atoms, ions lossis molecules ntawm cov siv lead ua; cov no yog tib hom los yog ntau hom. Ntxiv mus, yog tias cov chaw lattice muaj cov atom ntawm tib hom, ces peb hu nws lub monatomic crystal lattice, thiab yog tias muaj ntau hom atoms, ces nws yog polyatomic siv lead ua lattice. Feem ntau, monoatomic siv lead ua lattices yog yooj yim piv rau polyatomic crystals. Polyatomic lattices yog composite lattices. Piv txwv li, cov lus ntsev los yog NaCl yog cov kab sib xyaw ua ke, thiab nws qhov chaw lattice yog nyob ntawm sodium (Na) thiab chlorine (Cl) atoms.
Daim duab 01: Lub ntsej muag-centered Cubic Crystal Lattice nrog Lattice Sites hauv Xim Xim
Tsis tas li ntawd, tuaj yeem muaj qhov sib txawv. Ib qho interstitial yog ib qho atom uas nyob rau hauv ib qho kev siv lead ua lattice nyob rau hauv ib txoj hauj lwm uas cov khoom tsis tu ncua tsis raug muab. Qhov ntawd txhais tau tias; interstitial atoms tsis nyob hauv qhov chaw lattice. Yog li ntawd, cov atoms no tsis sib tov nrog hloov pauv atoms ntawm cov siv lead ua. Ntxiv mus, yog tias muaj qhov chaw nyob hauv ib lub lattice, peb hu nws qhov chaw seem lattice. Peb kuj tuaj yeem tsim qhov chaw seem los ntawm kev tshem tawm cov khoom ntawm ib lub lattice site. Tom qab ntawd qhov tshem tawm atom no yuav ua kom haum rau qhov chaw atomic nyob ze, uas yooj yim rau kev haum. Qhia cov ntsiab lus ntawm qhov chaw nyob no mus rau cov kab laum siv lead ua kom nce qhov entropy ntawm cov siv lead ua.
Qhov Chaw Sib Tham Sib Tham yog dab tsi?
Interstitial site yog txoj haujlwm ntawm cov haujlwm tsis tu ncua hauv ib qho ntawm cov khoom sib xyaw uas tuaj yeem nyob tau los ntawm lwm cov khoom. Feem ntau ntawm lub sij hawm, muaju muaj cubic kaw-packed los yog hexagonal kaw-packed lug. Muaj cov chaw lossis "qhov" uas cov atoms tuaj yeem nyob hauv cov qauv no (atoms uas tsis yog cov khoom siv ntawm cov khoom siv lead ua). Cov no yog hu ua interstitial sites thiab lawv muaj tetrahedral lossis octahedral coordination geometry. Cov atoms uas haum rau cov chaw no yog interstitial lossis interstitial atoms. Peb tuaj yeem soj ntsuam ib lub qhov octahedral thiab ob lub tetrahedral qhov ntawm txhua qhov ntim khoom.
Daim duab 02: Ib Qhov Chaw Sib Ceg hauv Crystal
Tsis tas li ntawd, interstitial atoms tuaj yeem dhia los ntawm ib qhov chaw interstitial mus rau lwm qhov, uas peb tuaj yeem hu ua qhov sib txawv ntawm qhov sib txawv. Txawm li cas los xij, qhov chaw lattice li niaj zaus tsis koom nrog hauv qhov kev nthuav dav no. Qhov peev xwm no tseem ceeb heev hauv kev tsim cov semiconductors.
Qhov txawv ntawm Lattice Site thiab Interstitial Site yog dab tsi?
Lattice site thiab interstitial site yog ob txoj haujlwm sib txawv hauv cov iav siv lead ua. Qhov sib txawv tseem ceeb ntawm qhov chaw lattice thiab qhov chaw interstitial yog qhov chaw lattice yog txoj hauj lwm ntawm cov khoom siv hauv cov khoom siv lead ua lattice, qhov chaw interstitial yog ib txoj hauj lwm ntawm cov hauj lwm tsis tu ncua nyob rau hauv cov khoom siv ntawm cov khoom siv lead ua uas tuaj yeem nyob tau los ntawm lwm cov khoom..
Hauv qab infographic muab qhov tseeb ntau ntxiv ntawm qhov sib txawv ntawm qhov chaw lattice thiab interstitial site.
Summary – Lattice Site vs Interstitial Site
Lattice site thiab interstitial site yog ob txoj haujlwm sib txawv hauv cov iav siv lead ua. Qhov sib txawv tseem ceeb ntawm qhov chaw lattice thiab qhov chaw interstitial yog qhov chaw lattice yog txoj hauj lwm ntawm cov khoom siv hauv cov khoom siv lead ua lattice, qhov chaw interstitial yog ib txoj hauj lwm ntawm cov hauj lwm tsis tu ncua nyob rau hauv cov khoom siv ntawm cov khoom siv lead ua uas tuaj yeem nyob tau los ntawm lwm cov khoom..
