Dab tsi yog Txoj Kev Sintering Rau Silicon Carbide Ceramics

Silicon carbide ceramics, tseem hu ua SiC ceramics, yog cov ntaub ntawv ua tau zoo uas tau siv dav hauv ntau qhov kev lag luam vim lawv cov khoom zoo heev, thermal, thiab hluav taws xob. Ib qho ntawm cov kauj ruam tseem ceeb tshaj plaws hauv kev tsim SiC ceramics yog cov txheej txheem sintering. Muaj ntau txoj kev sintering muaj, txhua tus nrog nws qhov zoo thiab qhov tsis zoo.

Cov txheej txheem sintering feem ntau rau SiC ceramics suav nrog kev tsis muaj zog sintering, kub-nias, thiab spark plasma sintering. Pressureless sintering yog txoj kev siv dav tshaj plaws rau SiC ceramics vim nws cov nqi qis thiab kev yooj yim. Nyob rau hauv cov txheej txheem no, cov khoom siv ceramic yog raug kub-kub tua nyob rau hauv atmospheric siab, ua rau densification ntawm cov khoom. Txawm li cas los xij, txoj kev no yuav tsum tau siv sijhawm ntev sintering thiab siab sintering kub.

Kub-nias, ntawm qhov tod tes, yog cov txheej txheem sintering ntau dua uas suav nrog kev siv lub siab rau cov khoom siv thaum lub sij hawm sintering kom ua tiav qhov ntom ntom ntawm qhov kub ntawm sintering. Txoj kev no yuav tsum muaj lub cub tawg tshwj xeeb uas muaj peev xwm ua rau muaj kev kub ntxhov thiab kub. Qhov tshwm sim SiC ceramics nthuav tawm ntau dua txhua yam lub zog, hardness, thiab thermal conductivity thaum piv rau cov pressureless sintered ceramics. Kub-nias yog qhov zoo tagnrho rau cov ntawv thov uas xav tau lub zog siab thiab tawv, xws li cov cuab yeej txiav thiab cov khoom hnav-tiv taus.

Spark Plasma Sintering (SPS) yog ib txoj kev sintering tshiab uas siv lub tshuab hluav taws xob tam sim no kom sov thiab sib sau cov khoom siv ceramic. Cov txheej txheem no ua rau cov cua kub ceev thiab txias ntawm cov khoom, uas ua rau lub siab zoo, siab ntom ntom ceramic nrog superior mechanical zog. SPS yog tsim rau sintering complex-zoo li tus SiC ceramics nyob rau hauv ib tug luv luv lub sij hawm, thiab cov khoom zaum kawg pom muaj siab hardness, lub zog, thiab hnav tsis kam. SPS yog ib qho kev cog lus rau kev tsim SiC ceramics rau kev siv qib siab xws li aerospace, nuclear zog, thiab hluav taws xob.

Shengyang New Materials Co., Ltd. tau cog lus los ua silicon carbide thiab silicon carbide ua cov khoom, thiab tuaj yeem kho ntau yam silicon carbide Cheebtsam raws li cov neeg siv khoom xav tau. Yog tias tsim nyog, thov hu rau peb.
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Hauv kev xaus, SiC ceramics tuaj yeem sintered siv ntau txoj hauv kev, nyob ntawm qhov yuav tsum tau ua thiab daim ntawv thov. Txoj kev tsis muaj zog sintering yog qhov yooj yim tshaj plaws tab sis yuav tsum muaj qhov kub thiab txias sintering ntev dua. Kub-nias thiab SPS yog cov txheej txheem siab dua, muab kev ceev dua thiab txhim kho cov khoom siv kho tshuab. Cov kws tshawb fawb tseem niaj hnub tshawb nrhiav cov tswv yim tshiab sintering los txhim kho cov khoom thiab txo cov nqi tsim khoom ntawm SiC ceramics, ua rau lawv siv tau rau ntau yam kev lag luam.