HCP muaj pes tsawg lub dav hlau nyob ze?

Video: HCP muaj pes tsawg lub dav hlau nyob ze?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Lub ntsej muag nruab nrab kub thiab hexagonal kaw ntim cov qauv ob leeg muaj a ntim ua 0.74, zoo packed dav hlau ntawm atoms, thiab muaj ib qho kev sib koom tes ntawm 12. Qhov txawv ntawm qhov fcc ua thiab hcp yog lub stacking sequence.

Kuj tseem paub yog, HCP muaj pes tsawg lub dav hlau plam?

Qhov no feem ntau xav tau a ntau siab dua daws shear stress thiab ua rau tus cwj pwm nkig ntawm hcp ua polycrystals. Cadmium, zinc, magnesium, titanium, thiab beryllium muaj a plam dav hlau ntawm {0001} thiab a plam kev taw qhia ntawm. Qhov no tsim tag nrho peb swb systems , nyob ntawm kev taw qhia.

Muaj pes tsawg lub dav hlau kaw BCC? atomic ntim rau a BCC {110} hom dav hlau . Muaj 6 dav hlau ntawm hom no, thiab txhua tus muaj ob kaw ntim cov lus qhia. cov xub qhia ob hom kev qhia sib txawv. cov qauv nrog zoo packed dav hlau tso cai rau cov yas deformation ntau dua li cov uas tsis yog kaw ntom nti.

Yog li ntawd, puas yog hcp kaw?

Muaj ob qhov yooj yim li niaj zaus lattices uas ua tiav qhov nruab nrab siab tshaj plaws. Lawv hu ua face-centered cubic (fcc) (tseem hu ua cubic kaw ntim ) thiab hexagonal kaw - ntim ( hcp ua ), raws li lawv symmetry.

Hcp kev npaj yog dab tsi?

Nyob rau hauv ib tug hexagonal kaw-packed ( hcp ua ) kev npaj ntawm atoms, chav tsev cell muaj peb txheej ntawm atoms. Cov txheej saum toj thiab hauv qab (a) muaj rau lub atom ntawm kaum ntawm lub hexagon thiab ib lub atom ntawm qhov chaw ntawm txhua hexagon.

Pom zoo:

Muaj pes tsawg lub ntsiab lus txiav txim lub dav hlau?

Peb Ib yam li ib tug yuav nug, puas yog 3 cov ntsiab lus txiav txim siab lub dav hlau? Muaj plaub txoj hauv kev txiav txim lub dav hlau : Peb tsis-collinear cov ntsiab lus txiav txim lub dav hlau . Cov lus no txhais tau tias yog koj muaj peb cov ntsiab lus tsis yog ntawm ib kab, ces tsuas yog ib qho tshwj xeeb dav hlau tuaj yeem dhau ntawm cov cov ntsiab lus .

Muaj pes tsawg valence electrons pom nyob rau hauv halogens cov alkali hlau thiab alkaline ntiaj teb hlau?

Cov halogens tag nrho muaj cov txheej txheem hluav taws xob dav dav ns2np5, muab rau lawv xya valence electrons. Lawv yog ib qho hluav taws xob luv luv uas muaj tag nrho sab nrauv s thiab p sublevels, uas ua rau lawv muaj zog heev. Lawv tau txais cov tshuaj tiv thaiv tshwj xeeb nrog cov reactive alkali hlau

Muaj pes tsawg quadrants nyob rau hauv lub dav hlau Cartesian?

plaub Ua li no, plaub lub quadrants ntawm lub dav hlau ua haujlwm yog dab tsi? Cov kev sib tshuam x- thiab y-axes faib cov tswj lub dav hlau rau hauv plaub ntu. Cov no plaub ntu hu ua quadrants . Quadrants muaj npe siv cov lej Roman I, II, III, thiab IV pib nrog rau sab xis quadrant thiab txav counterclockwise.

Muaj pes tsawg lub tangents hauv lub voj voog uas sib tshuam hauv ob lub ntsiab lus muaj?

Thaum ib lub voj voog nyob tag nrho hauv ib leeg yam tsis tau kov, tsis muaj tangent. Thaum ob lub voj voog kov ib leeg sab hauv 1 cov tangent tuaj yeem kos rau lub voj voog. Thaum ob lub voj voog sib tshuam hauv ob lub ntsiab lus tiag tiag thiab sib txawv, 2 cov tangents tuaj yeem kos rau lub voj voog