Yog vim li cas rau lub siab Hardness ntawm Spinel
Cov qauv siv lead ua ntawm spinel yog ib qho square siv lead ua, thiab txhua lub cell spinel muaj yim cubic oxides thiab ib qho octahedral oxide. Lub octahedral oxide muaj ib txoj kab uas hla loj dua lub cubic oxide, uas ua rau lub cell ntim ntau dua li lwm cov muaju.
Qhov nce ntawm qhov ntim ntawm tes ua rau qhov sib nrug ntawm cov atoms ntawm spinel loj dua thiab cov khoom siv tshuaj lom neeg ntau dua, uas ua rau spinel muaj zog dua.
Nyob rau tib lub sijhawm, spinel qhia tau hais tias muaj kev sib raug zoo hauv cov ntsiab lus lattice, thiab cov qauv siv lead ua yog qhov ruaj khov thiab tsis yooj yim rau distortion lossis warping, uas yog qhov zoo rau qhov hardness ntawm spinel.
Bonded qauv
Spinel muaj lub zog sib raug zoo heev, thiab nws cov qauv sib txuas yog cov qauv sib xyaw ntawm tetrahedral thiab octahedral kev sib koom ua ke, tetrahedral sab ntev yog 0.5 nm, thiab txoj kab uas hla ntawm octahedron yog 1 nm.
Txij li thaum lub octahedral oxide muaj ib txoj kab uas hla loj dua li tetrahedral oxide, nws muaj peev xwm tsim kom muaj zog sib koom tes bonds nrog cov atoms nyob ib ncig ntawm oxygen, yog li amplifying lub zog sib txuas.
Tsis tas li ntawd, lub zog sib txuas hauv spinel kuj tseem cuam tshuam los ntawm ob qho kev ua haujlwm ntawm cov khoom siv tshuaj lom neeg thiab ionic daim ntawv cog lus, nyob rau hauv uas cov huab cua hluav taws xob sib tshooj los tsim kev sib cuam tshuam zoo, thaum ionic daim ntawv cog lus tuaj yeem tsim cov qauv siv lead ua ruaj khov dua los ntawm kev teeb tsa staggered. tib ions.
Tshuaj muaj pes tsawg leeg
Lub hardness ntawm spinel kuj tseem cuam tshuam los ntawm cov tshuaj muaj pes tsawg leeg, feem ntau, spinel feem ntau muaj txhuas, thiab hlau yuav txo cov hardness ntawm spinel, uas ua rau muaj kev nce hauv brittleness.
Tsis tas li ntawd, muaj lwm cov ntsiab lus hlau hauv spinel, xws li tooj liab, zinc, magnesium, thiab lwm yam, lawv qhov sib ntxiv tuaj yeem tsim cov hybrid, ua kom muaj kev ruaj ntseg thiab hardness ntawm spinel.
Tau kawg, cov tshuaj sib txawv ntawm cov tshuaj sib txawv kuj tseem cuam tshuam rau cov xim, qhov ntsuas qhov tsis pom kev thiab lwm yam khoom ntawm spinel, uas yuav tsis rov ua dua ntawm no.
Crystal defects yog tshwm sim los ntawm qhov tseeb hais tias cov atoms nyob rau hauv spinel hlwb tsis tuaj yeem sau tag nrho. Cov teeb meem no tau qhib rau ntawm lub ntsej muag siv lead ua lossis hauv phonon system, uas tuaj yeem ua rau nws cov qauv atomic cuam tshuam los ntawm distortion, warping, dislocation, thiab lwm yam, uas ua rau cov qauv siv lead ua ntau dua ntawm spinel thiab hardness.
Cov siv lead ua tsis xws luag hauv spinel, xws li aerobic vacancy, hlau cuam tshuam, oxygen matrix defect thiab tsis-equilibrium puas, muaj qee yam cuam tshuam rau qhov nce ntawm spinel hardness.
Kev ntxhov siab
Lub xeev kev nyuaj siab yog hais txog cov txiaj ntsig ntawm lub xeev kev ntxhov siab, lub zog thiab kev taw qhia ntawm cov khoom siv kho tshuab.
Thaum lub siab yog siv rau saum npoo los yog kev sib cuag ntawm cov khoom siv, lub zog thiab kev taw qhia ntawm cov qauv siv lead ua ntawm spinel yuav hloov, ua rau nws qhov chaw nyuaj, yog li ua rau lub hardness ntawm spinel.
Tsis tas li ntawd, nyob rau hauv cov txheej txheem ntawm machining los yog tshuaj etching, qhov kev nyuaj siab ntawm lub nto ntawm spinel siv lead ua kuj yuav hloov, yog li ua rau saum npoo ntau ntom thiab nce hardness ntawm spinel.
JIYGO REFRACTORY & ABRASIVE LIMITED