Ib feem peb ntawm kev ntim khoom hauv cov hlau, lub cev-centered cubic (BCC) chav tsev cell muaj atoms ntawm txhua yim kaum ntawm lub voos xwmfab ntxiv rau ib lub atom hauv nruab nrab ntawm lub voos xwmfab. Vim hais tias txhua lub ces kaum atoms yog lub ces kaum ntawm lwm lub voos xwmfab, lub ces kaum atoms nyob rau hauv txhua chav tsev cell yuav muab sib koom ntawm yim units.
Lub ntsiab lus ntawm lub cev-centered cubic yog dab tsi?
Lub Cev-centered cubic (BCC) yog npe muab rau hom atom kev npaj pom nyob rau hauv xwm. Lub cev-centered cubic unit cell qauv muaj cov atoms teem nyob rau hauv ib lub voos xwmfab qhov twg txhua lub ces kaum ntawm lub voos xwmfab qhia ib atom thiab nrog ib tug atom nyob rau hauv nruab nrab.
Vim li cas BCC muaj zog dua FCC?
Yog APF yog qhov tseem ceeb, qhov tseem ceeb ntawm atomic packing factor, yog vim li cas FCC muaj ntau lub tshuab plam, vim tias txoj kev atoms tau teem rau hauv cov siv lead ua. Yog li FCC hlau deform yooj yim dua BCC hlau thiab yog li lawv muaj ntau ductile. BCC hlau yog infact muaj zog duaFCC hlau. HCP hlau yog cov nkig tshaj plaws.
Dab tsi yog qhov txawv ntawm lub cev-centered cubic thiab lub ntsej muag-centered cubic?
lub cev-centered cubic: Muaj ibatom lossis ion nyob rau hauv nruab nrab ntawm chav tsev cell ntxiv rau kaum atoms lossis ions. lub ntsej muag-centered cubic: Kuj tseem muaj atoms lossis ions nyob hauv nruab nrab ntawm txhua lub ntsej muag ntawm lub cell.
Vim li cas cov hlau muaj lub ntsej muag-centered thiab hexagonal centeredcov qauv?
yim daim ntawv cog lus muaj zog rau cov atoms uas nws kov thiab rau qhov tsis muaj zog rau cov atoms nws yuav luag kov. Qhov no ua rau nws nkag siab yooj yim dua yog vim li cas cov hlau yuav nyiam lub cev-centered cubic qauv rau hexagonal los yog cubic ze-packed qauv.
