Yuav ua li cas xaiv cov hlaws sib tsoo kom raug hauv kev sib tsoo ntub?
Hauv cov txheej txheem sib tsoo ntub, qhov kev xaiv ntawmsib tsoo hlaws daimuaj feem cuam tshuam ncaj qha rau qhov kev sib tsoo zoo kawg, qhov zoo ntawm cov khoom thiab lub neej ntawm cov khoom siv. Txawm hais tias nyob rau hauv kev lag luam txheej, kua mem, tshuaj pleev hluav taws xob lossis biomedicine, kev xaiv cov hlaws sib tsoo zoo yog qhov tseem ceeb heev. Tsab xov xwm no yuav pab koj xaiv los ntawm ntau lub kaum sab xis kom ua tiav cov txiaj ntsig sib tsoo zoo thiab ruaj khov.
1. Piav qhia lub hom phiaj ntawm kev sib tsoo
Ua ntej xaiv cov hlaws sib tsoo, koj yuav tsum xub piav qhia lub hom phiaj tseem ceeb ntawm cov txheej txheem sib tsoo. Cov kev xav tau ntawm qhov loj ntawm cov khoom me me yog ib qho ntawm cov kev xav tseem ceeb: yog tias cov khoom xav tau qhov loj me ntawm cov khoom me me hauv submicron lossis txawm tias nanometer, cov hlaws sib tsoo me me yuav tsum muaj lub zog shear thiab lub zog ceev txaus kom ua tiav kev sib tsoo zoo dua. Tsis tas li ntawd, qhov nyuaj ntawm cov khoom kuj tseem yuav cuam tshuam rau kev xaiv cov khoom siv hlaws. Piv txwv li, cov khoom siv siab-hardness yuav ua rau cov hlaws hnav ntau dua thaum lub sijhawm sib tsoo, yog li nws feem ntau tsim nyog xaiv cov hlaws uas muaj zog siab thiab tiv taus hnav xws lizirconium oxide; rau cov ntaub ntawv mos mos, cov hlaws iav pheej yig dua lossis cov hlaws alumina tuaj yeem xaiv tau. Lwm yam uas yuav tsum tau xav txog yog qhov rhiab heev ntawm cov khoom, tshwj xeeb tshaj yog hauv cov ntawv thov nrog cov kev xav tau huv siab xws li tshuaj, cov khoom siv tshuaj lom neeg, thiab cov khoom siv hluav taws xob slurries. Kev tsiv teb tsaws chaw ntawm cov hlau ion lossis cov khoom tsis huv thaum lub sijhawm sib tsoo yuav cuam tshuam rau kev ua haujlwm ntawm cov khoom. Hauv qhov no, cov hlaws tsis yog hlau uas muaj kuab paug tsawg thiab muaj zog tshuaj lom neeg ruaj khov yuav tsum tau nyiam dua, xws li cov hlaws zirconium oxide lossis cov hlaws txhuas oxide, kom ntseeg tau tias cov khoom muaj kev nyab xeeb thiab kev sib xws.
2. Xaiv cov khoom siv hlaws raws li kev sib raug zoo ntawm cov tshuaj lom neeg thiab kev tiv taus hnav
Cov khoom siv sib tsoo yuav tsum muaj kev ruaj khov tshuaj lom neeg zoo thiab cov khoom siv kho tshuab. Cov hauv qab no yog cov yam ntxwv thiab cov xwm txheej siv ntawm ntau cov ntaub ntawv siv feem ntau:
Cov hlaws dai ntawm cov ntaub ntawv sib txawv muaj lawv tus kheej qhov zoo, uas yuav tsum tau xav txog kom meej meej ua ke nrog koj cov khoom siv thiab qhov chaw ntawm cov khoom.
3. Kev xaiv tsim nyog ntawm qhov loj ntawm cov hlaws dai thiab qhov loj me ntawm cov khoom me me
Qhov loj thiab kev faib tawm ntawmsib tsoo hlaws daimuaj qhov cuam tshuam loj rau qhov cuam tshuam ntawm kev sib tsoo:
Cov khoom me me (<0.3mm) muaj thaj chaw loj thiab muaj kev sib tsoo ntau zaus, uas tsim nyog rau cov xwm txheej uas ua raws li cov khoom me me heev;
Cov khoom me me loj (> 0.6 hli) muaj lub zog cuam tshuam loj dua thiab tsim nyog rau kev sib tsoo loj lossis kev kho ua ntej ntawm cov khoom loj dua;
Hauv qee qhov kev siv hauv kev lag luam, kev siv sib xyaw ntawm cov hlaws loj thiab me me tuaj yeem tsim kom muaj kev sib tsoo zoo dua, uas pab txhim kho kev ua haujlwm zoo thiab kev sib npaug ntawm cov khoom me me.
Hauv kev ua haujlwm tiag tiag, kev tswj hwm kev tshawb fawb ntawm kev faib tawm qhov loj ntawm cov hlaws feem ntau zoo dua li qhov loj me ntawm ib qho khoom me me.
4. Ua tib zoo saib xyuas qhov cuam tshuam ntawm qhov ceev ntawm cov hlaws dai rau ntawm qhov sib tsoo.
Qhov ceev ntawm cov hlaws sib tsoo txiav txim siab nws lub zog cuam tshuam thiab kev sib tsoo muaj zog:
Cov hlaws dai siab (> 5.5g / cm³) muaj lub zog cuam tshuam loj, uas pab kom tawg cov khoom tawv sai sai thiab feem ntau siv rau kev sib tsoo ultrafine ntawm cov khoom inorganic;
Cov hlaws dai uas tsis muaj zog (2.5–4.0g/cm³) muaj qhov cuam tshuam mos mos, uas tsim nyog rau cov khoom tawg yooj yim thiab rhiab heev rau cua sov, thiab tuaj yeem txo qhov kub dhau thiab kev puas tsuaj thaum sib tsoo.
Kev xaiv qhov ceev tsis yog tsuas yog cuam tshuam rau kev ua haujlwm zoo xwb, tab sis kuj tseem siv zog thiab tswj qhov kub thiab txias, thiab yuav tsum tau ua kom zoo tshaj plaws nrog rau cov khoom siv.
5. Tswj kev pheej hmoo ntawm kev ua qias tuaj
Kev tswj kev ua qias tuaj yog ib qho tseem ceeb rau kev sib tsoo ntub, tshwj xeeb tshaj yog hauv kev lag luam tshuaj, khoom noj, thiab khoom siv hluav taws xob. Qee cov khoom siv hlaws, xws li cov hlaws hlau thiab cov khoom siv ceramic tsis huv, yuav tso cov hlau lossis cov khoom tsis xav tau, ua rau cov khoom muaj kuab paug. Lub sijhawm no,cov hlaws iav, cov hlaws zirconia, lossis cov khoom siv ceramic uas muaj kev ntshiab siab yuav tsum tau muab qhov tseem ceeb kom ntseeg tau tias qhov huv ntawm lub kaw lus.
6. Kev xav txog tus nqi thiab lub neej kom meej
Tus nqi ntawm cov ntaub ntawv hlaws sib txawv sib txawv heev, thiab lub neej ua haujlwm thiab tus nqi txij nkawm kuj txawv:
Txawm hais tias tus nqi yuav thawj zaug ntawm cov hlaws dai ua haujlwm siab dua, lawv muaj lub neej ua haujlwm ntev, txo qhov zaus ntawm kev hloov pauv thiab lub sijhawm tsis ua haujlwm ntawm cov khoom siv, thiab pheej yig dua rau lub sijhawm ntev;
Cov hlaws dai pheej yig muaj kev nqis peev me me thaum pib, tab sis yog tias lawv raug hloov pauv ntau zaus lossis yooj yim hnav, tag nrho cov nqi khiav lag luam yuav nce ntxiv.
Nws raug pom zoo kom muab cov xwm txheej ntawm cov kab ntau lawm ua ke, ntsuas qhov siv cov khoom siv, kev siv zog, thiab kev hloov pauv ntawm cov zis, thiab ua qhov kev xaiv pheej yig dua.
7. Kev txheeb xyuas qhov kev xeem me me thiab kev ua kom zoo dua qub
Tom qab xaiv cov khoom siv hlaws dai, nws raug pom zoo kom ua qhov kev sim me me. Sim qhov ua tiav ntawm qhov loj me ntawm cov khoom me me, lub sijhawm sib tsoo, kev sib xws ntawm cov khoom, thiab seb puas muaj cov khoom seem.
Cov txiaj ntsig ntawm kev sim siv tau los kho cov yam ntxwv tseem ceeb xws li kev sib hloov ceev, qhov piv ntawm cov hlaws dai, lub sijhawm sib tsoo, thiab lwm yam kom ntseeg tau tias qhov kawg ntawm kev tsim khoom loj ua tau raws li cov qauv.
Xaus Lus: Txawm hais tias cov hlaws sib tsoo me me, lawv txiav txim siab qhov ua tau zoo, qhov zoo ntawm cov khoom thiab cov txiaj ntsig kev lag luam ntawm kev sib tsoo ntub. Kev xaiv kev tshawb fawb yuav tsum xav txog cov kev xav tau ntawm lub hom phiaj, cov yam ntxwv ntawm cov khoom siv, kev sib phim ntawm cov khoom siv thiab kev tswj tus nqi. Los ntawm kev sim thaum ntxov thiab kev ua kom zoo dua, tsis yog tsuas yog kev sib tsoo zoo tuaj yeem ua tiav, tab sis kuj tseem tuaj yeem ua kom ruaj khov ntawm kev tsim khoom thiab kev sib tw ntawm cov khoom lag luam.