Qhov sib txawv tseem ceeb ntawm kev hloov pauv thiab qhov sib txawv ntawm cov alloys yog qhov hloov pauv cov alloys tsim thaum ib lub hlau atom hloov lwm lub atom ntawm cov hlau zoo sib xws hauv cov hlau lattice whereas interstitial alloys tsim thaum me me atoms ntxig rau hauv lub qhov ntawm cov hlau lattice.
Ib qho hlau yog sib xyaw ntawm cov hlau. Txawm li cas los xij, qee zaum qhov sib xyaw no tuaj yeem muaj cov hlau tsis muaj hlau thiab. Kev tsim cov hlau alloys suav nrog kev sib xyaw ntawm cov hlau molten. Nyob ntawd, qhov loj ntawm cov hlau atoms txiav txim siab hom alloy tsim; uas yog, yog hais tias cov hlau atoms ntawm tib qhov loj, ces cov alloy tsim yog hloov pauv. Yog hais tias cov hlau atoms muaj ntau qhov sib txawv, ces qhov tshwm sim alloy yog interstitial.
Yam hloov pauv yog dab tsi?
Kev hloov pauv cov hlau yog cov hlau alloys uas tsim los ntawm atom exchange mechanisms. Ntawm no, cov hlau atoms ntawm cov hlau sib txawv (lwm cov hlau sib xyaw ua cov hlau) hloov cov hlau atoms ntawm cov hlau lattice.
Daim duab 01: Ib qho Kev Hloov Pauv
Qhov kev hloov pauv no tsuas yog tshwm sim yog tias cov hlau atoms muaj qhov sib xws. Qee qhov kev hloov pauv ntau yam xws li tooj dag, tooj liab, thiab lwm yam. Muaj, tooj liab atoms ntawm cov hlau lattice hloov nrog cov tin lossis zinc hlau atoms.
Dab tsi yog Interstitial Alloys?
Interstitial alloys yog hlau alloys uas tsim los ntawm interstitial mechanism. Tsis tas li ntawd, qhov txheej txheem no suav nrog kev nkag ntawm cov atoms me me rau hauv qhov ntawm cov hlau lattices. Lub lattice hlau muaj cov hlau atoms loj hauv cov qauv network. Tseem muaj delocalized electrons nyob ib ncig ntawm cov hlau atoms. Yog li ntawd, thaum lub molten hlau sib tov nrog ib tug sib txawv hlau uas muaj me me atoms, ib tug interstitial alloy cov ntaub ntawv. Txawm li cas los xij, cov atoms me me no yuav tsum me me kom nkag mus rau hauv lub qhov lattice.
Daim duab 02: Ib qho Kev Sib Txuas Sib Txuas
Qee yam piv txwv ntawm cov atom me me uas muaj peev xwm nkag mus rau hauv cov hlau nplaum muaj xws li hydrogen, carbon, boron, thiab nitrogen. Ib qho piv txwv ntawm ib qho interstitial alloy yog steel. Hlau muaj hlau, carbon thiab lwm yam khoom. Tsis muaj kev hloov pauv tshwm sim thaum tsim cov hlau sib txuas vim tias cov atoms sib xyaw tsis loj txaus los hloov cov atom hlau.
Qhov txawv ntawm Kev Hloov Hloov thiab Kev Sib Txuas Sib Txuas Sib Txuas yog dab tsi?
Substitutional vs Interstitial Alloys |
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| Kev hloov pauv cov hlau yog hlau alloys tsim los ntawm atom exchange mechanisms. | Interstitial alloys yog hlau alloys tsim los ntawm interstitial mechanism. |
| Tsim Mechanism | |
| Forms ntawm atom exchange mechanism. | Forms ntawm interstitial mechanism. |
| Size of the Atoms | |
| Nyob rau hauv no alloy tsim, ib tug molten hlau yog tov nrog lwm molten hlau uas zoo sib xws atomic loj. | Nyob hauv qhov tsim cov hlau no, cov hlau molten yog tov nrog cov khoom sib xyaw uas muaj cov atoms me me uas muaj peev xwm nkag mus rau hauv lub qhov ntawm cov hlau lattice. |
| Piv txwv li | |
| Brass and bronze | Steel |
Summary – Hloov pauv vs Interstitial Alloys
Alloys yog sib xyaw ntawm cov hlau thiab lwm yam tsis yog hlau. Cov alloys no tau txhim kho cov khoom zoo dua li cov hlau ib leeg. Muaj ob hom alloys uas yog, hloov pauv alloys thiab interstitial alloys. Qhov sib txawv ntawm kev hloov pauv thiab qhov sib txawv ntawm cov alloys yog cov hlau hloov pauv thaum ib qho hlau atom hloov lwm lub atom ntawm cov hlau zoo sib xws hauv cov hlau lattice whereas interstitial alloys tsim thaum me me hlau atoms ntxig rau hauv lub qhov ntawm cov hlau lattice.
