Vim li cas cov dav hlau nyob hauv lub pas nrig tseem ceeb? (A) Kev txiav txim siab cov qauv siv lead uaDiffraction txoj kev ntsuas qhov kev ncua deb ntawm qhov sib npaug ntawm cov lattice dav hlau ntawm atoms. Cov ntaub ntawv no yog siv los txiav txim cov kab lattice nyob rau hauv ib lub siv lead ua. Txoj kev sib txawv kuj ntsuas lub kaum sab xis ntawm cov dav hlau lattice.
Lub dav hlau crystallographic yog dab tsi?
i. Txhua qhov sib npaug thiab sib npaug ntawm cov dav hlau uas yuav tsum dhau los ntawm cov chaw ntawm cov atoms hauv cov muaju.
Dab tsi yog Miller indices thiab nws qhov tseem ceeb?
Miller indices yog siv los qhia cov lus qhia thiab dav hlau. • Cov kev taw qhia thiab cov dav hlau no tuaj yeem nyob hauv lattices lossis hauv cov pob zeb. • Tus naj npawb ntawm qhov ntsuas yuav phim nrog qhov ntev ntawm lub lattice los yog siv lead ua.
Dab tsi yog dav hlau hauv cov muaju?
Crystal dav hlau los ntawm cov qauv hu ua crystal lattices. Cov lattices no yog peb qhov qauvuas muaj symmetrically organised atoms intersecting peb pawg ntawm parallel dav hlau. … Cov dav hlau sib cuam tshuam thiab ua 3D duab uas muaj rau lub ntsej muag.
HKL dav hlau yog dab tsi?
Cov dav hlau raug suav nrog lub cim (hkl), qhov twg h, k, thiab l yog cov lej. Ib qho taw qhia hauv qhov chaw, [xyz], yog nyob rau hauv lub dav hlau txhais los ntawm indices (hkl) uas dhau los ntawm keeb kwm, yog. xh + yk + zl=0. Planes hu ua lattice planes yog ib lub lattice point ntawmdav hlau.
