Sintered silicon carbide yog ib qho tseem ceeb ntawm cov khoom siv ceramic, dav siv nyob rau hauv qhov kub thiab txias, siab siab thiab siab zog teb. Reactive sintering ntawm SIC yog ib kauj ruam tseem ceeb hauv kev npaj sintered SIC cov ntaub ntawv. Kev tswj kom zoo ntawm sintering SIC cov tshuaj tiv thaiv tuaj yeem pab peb tswj cov tshuaj tiv thaiv kab mob thiab txhim kho cov khoom zoo. Txoj kev tswj kom zoo ntawm sintered silicon carbide cov tshuaj tiv thaiv yog tham hauv daim ntawv no.
1. Optimization ntawm cov tshuaj tiv thaiv sintering SIC tej yam kev mob
Cov tshuaj tiv thaiv kab mob yog qhov tseem ceeb ntawm sintered silicon carbide cov tshuaj tiv thaiv, nrog rau cov tshuaj tiv thaiv kub, tshuaj tiv thaiv siab, reactant huab hwm coj piv thiab lub sijhawm tshuaj tiv thaiv. Thaum optimizing cov tshuaj tiv thaiv tej yam kev mob, nws yog tsim nyog los kho raws li ib tug tshwj xeeb daim ntawv thov thiab cov tshuaj tiv thaiv mechanism.
(1) Qhov kub thiab txias: Cov tshuaj tiv thaiv kub yog ib qho tseem ceeb cuam tshuam rau cov tshuaj tiv thaiv ceev thiab cov khoom zoo. Nyob rau hauv ib tug tej yam ntau, qhov siab dua cov tshuaj tiv thaiv kub, qhov ceev cov tshuaj tiv thaiv ceev, lub siab dua cov khoom zoo. Txawm li cas los xij, cov tshuaj tiv thaiv kub dhau heev yuav ua rau qhov nce ntawm qhov pores thiab tawg hauv cov khoom, cuam tshuam rau qhov zoo ntawm cov khoom.
(2) Cov tshuaj tiv thaiv siab: Cov tshuaj tiv thaiv siab kuj muaj feem cuam tshuam rau cov tshuaj tiv thaiv ceev thiab cov khoom ntom ntom. Nyob rau hauv ib tug tej yam ntau, qhov siab dua cov tshuaj tiv thaiv, qhov ceev cov tshuaj tiv thaiv ceev thiab ntau dua cov khoom ceev. Txawm li cas los xij, cov tshuaj tiv thaiv siab dhau lawm kuj tuaj yeem ua rau ntau qhov pores thiab tawg hauv cov khoom.
(3) reactant huab hwm coj piv: reactant huab hwm coj piv yog lwm yam tseem ceeb cuam tshuam rau cov tshuaj tiv thaiv ceev thiab cov khoom zoo. Thaum cov pa roj carbon rau silicon loj piv yog tsim nyog, cov tshuaj tiv thaiv tus nqi thiab cov khoom loj. Yog tias qhov sib piv ntawm reactant loj tsis tsim nyog, nws yuav cuam tshuam rau cov tshuaj tiv thaiv tus nqi thiab cov khoom loj.
(4) Lub Sijhawm Tawm Tsam: Lub sijhawm tshuaj tiv thaiv yog ib qho ntawm qhov cuam tshuam rau cov tshuaj tiv thaiv ceev thiab cov khoom zoo. Nyob rau hauv ib tug tej yam ntau yam, lub sij hawm ntev cov tshuaj tiv thaiv, qhov qeeb cov tshuaj tiv thaiv ceev thiab cov khoom zoo dua. Txawm li cas los xij, cov tshuaj tiv thaiv ntev dhau lawm yuav ua rau muaj qhov pores thiab tawg ntawm cov khoom, cuam tshuam rau qhov zoo ntawm cov khoom.
2. Txheej txheem tswj ntawm reactive sintering silicon carbide
Hauv cov txheej txheem ntawm sintering SIC cov tshuaj tiv thaiv, nws yog ib qho tsim nyog los tswj cov txheej txheem tshuaj tiv thaiv. Lub hom phiaj ntawm kev tswj yog los xyuas kom meej qhov ruaj khov ntawm cov tshuaj tiv thaiv thiab qhov sib xws ntawm cov khoom zoo. Kev tswj cov txheej txheem tshuaj tiv thaiv suav nrog kev tswj qhov kub thiab txias, tswj siab, tswj huab cua thiab tswj kom zoo reactant.
(1) Kev tswj kub: Kev tswj qhov kub thiab txias yog ib qho tseem ceeb ntawm kev tswj cov txheej txheem tshuaj tiv thaiv. Kev tswj qhov kub thiab txias Cov tshuaj tiv thaiv kub yuav tsum tau tswj kom meej li sai tau los xyuas kom meej qhov ruaj khov ntawm cov txheej txheem tshuaj tiv thaiv thiab cov khoom zoo ib yam. Nyob rau hauv niaj hnub ntau lawm, lub computer tswj system feem ntau yog siv los tswj cov tshuaj tiv thaiv kub kom raug.
(2) Kev tswj siab: Kev tswj siab yog lwm qhov tseem ceeb ntawm kev tswj cov txheej txheem tshuaj tiv thaiv. Los ntawm kev tswj cov tshuaj tiv thaiv siab, kev ruaj ntseg ntawm cov txheej txheem tshuaj tiv thaiv thiab cov khoom zoo sib xws tuaj yeem ua kom ntseeg tau. Nyob rau hauv niaj hnub ntau lawm, lub computer tswj system feem ntau yog siv los tswj cov tshuaj tiv thaiv siab.
(3) Atmosphere tswj: Atmosphere tswj yog hais txog kev siv cov huab cua tshwj xeeb (xws li inert cua) hauv cov txheej txheem tshuaj tiv thaiv los tswj cov txheej txheem tshuaj tiv thaiv. Los ntawm kev tswj cov huab cua, kev ruaj ntseg ntawm cov txheej txheem tshuaj tiv thaiv thiab cov khoom zoo sib xws tuaj yeem ua kom ntseeg tau. Hauv kev tsim khoom niaj hnub no, kev tswj hwm lub computer feem ntau yog siv los tswj cov huab cua.
(4) Reactant zoo tswj: Reactant zoo tswj yog ib qho tseem ceeb ntawm kev ua kom muaj kev ruaj ntseg ntawm cov txheej txheem tshuaj tiv thaiv thiab cov khoom zoo sib xws. Los ntawm kev tswj xyuas qhov zoo ntawm cov reactants, kev ruaj ntseg ntawm cov txheej txheem tshuaj tiv thaiv thiab qhov sib xws ntawm cov khoom zoo tuaj yeem ua kom ntseeg tau. Hauv kev tsim khoom niaj hnub no, kev tswj hwm lub computer feem ntau yog siv los tswj cov reactants zoo.
Kev tswj kom zoo ntawm reactive sintering SIC yog ib kauj ruam tseem ceeb los npaj cov khoom zoo sintered SIC. Los ntawm optimizing cov kev mob tshwm sim, tswj cov txheej txheem tshuaj tiv thaiv thiab saib xyuas cov khoom siv tshuaj tiv thaiv, kev ruaj ntseg ntawm cov txheej txheem tshuaj tiv thaiv thiab cov khoom zoo sib xws tuaj yeem ua kom ntseeg tau. Hauv kev siv tswv yim, cov tshuaj tiv thaiv ntawm sintered silicon carbide yuav tsum tau hloov kho raws li cov ntawv thov tshwj xeeb kom ua tau raws li cov ntawv thov sib txawv.
Post lub sij hawm: Jun-05-2023