Alpha-alumina muaj cov tshuaj lom neeg ruaj khov, tiv taus corrosion, siab hardness, zoo rwb thaiv tsev, siab melting point thiab siab toughness, thiab yog siv rau hauv ntau qhov chaw sib txawv.
Kev siv cov hmoov α-alumina hauv cov khoom siv ceramics
Microcrystalline alumina ceramics yog ib hom khoom siv ceramic tshiab nrog cov qauv sib xws thiab ntom thiab nano lossis sub-micron noob loj. Nws muaj qhov zoo ntawm lub zog siab, hnav tsis kam, corrosion tsis kam, oxidation tsis kam, adjustable expansion coefficient thiab zoo thermal stability. Nws lub ntsiab feature yog tias lub thawj siv lead ua me me. Yog li ntawd, qhov tseem ceeb tshaj plaws rau kev npaj cov microcrystalline alumina ceramics yog npaj α-Al2O3 hmoov nrog cov siv lead ua me me thiab kev ua haujlwm sintering siab. Cov hmoov α-Al2O3 no tuaj yeem dhau los ua lub cev ceramic ntom ntom ntawm qhov kub sintering qis.
Daim ntawv thov ntawm α-alumina hmoov hauv cov khoom siv refractory
α-Al2O3 hmoov yog txawv ntawm cov khoom siv refractory raws li daim ntawv thov, thiab cov hmoov xav tau kuj txawv. Piv txwv li, yog tias koj xav kom ceev cov khoom siv refractory, nano-alumina yog qhov kev xaiv zoo tshaj plaws; yog tias koj xav npaj cov refractories zoo li tus, koj xav tau α-Al2O3 hmoov nrog cov noob loj, me me shrinkage, thiab muaj zog tiv thaiv deformation. Flake lossis phaj-puab crystallites zoo dua; tab sis yog tias nws yog cov khoom siv refractory amorphous, α-Al2O3 yuav tsum muaj cov kua dej zoo, kev ua haujlwm sintering siab, thiab qhov faib tawm ntawm cov khoom me me xav tau qhov loj tshaj plaws, thiab cov crystallites zoo dua.
Kev siv cov hmoov α-alumina hauv cov ntaub ntawv polishing
Cov ntawv thov polishing sib txawv xav tau cov ntaub ntawv sib txawv. Cov khoom rau kev polishing ntxhib thiab kev polishing nruab nrab xav tau lub zog txiav muaj zog thiab qhov nyuaj siab, yog li lawv cov microstructure thiab cov siv lead ua yuav tsum yog ntxhib; α-alumina hmoov rau kev polishing zoo xav tau tias cov khoom polished muaj qhov roughness qis thiab gloss siab Yog li ntawd, qhov me dua ntawm cov siv lead ua thawj ntawm α-Al2O3, qhov zoo dua.
Kev siv cov hmoov α-alumina hauv cov khoom siv sau
Hauv cov khoom sau, txhawm rau kom ntseeg tau tias nws sib xyaw zoo nrog cov organic thiab txo qhov cuam tshuam rau qhov viscosity ntawm lub kaw lus, qhov yuav tsum tau ua yooj yim tshaj plaws rau α-Al2O3 yog tias qhov fluidity zoo txaus, nyiam dua sphericity, vim tias qhov siab dua qhov sphericity, qhov saum npoo. Lub zog me dua, qhov zoo dua qhov fluidity ntawm lub pob; qhov thib ob, α-Al2O3 hmoov nrog kev tsim kho crystal tiav, kev ntshiab tshuaj lom neeg siab thiab qhov hnyav tshwj xeeb muaj qhov ua tau zoo dua thermal conductivity thiab cov nyhuv zoo dua thaum siv rau cov khoom siv rwb thaiv tsev thiab thermally conductive.
Daim ntawv thov ntawm α-alumina hmoov hauv cov khoom siv capacitor corundum
Hauv kev lag luam, cov hmoov α-alumina ntshiab feem ntau yog sintered hauv lub cub tawg hluav taws xob kub siab los ua cov corundum dag, tseem hu ua fused corundum. Cov khoom siv no muaj cov yam ntxwv ntawm kev tawv siab, cov npoo thiab cov ces kaum meej, thiab cov qauv me me zoo dua li lub voos xwmfab. Hauv cov txheej txheem ntawm kev sib tsoo ceev ceev, cov noob abrasive muaj lub zog txiav muaj zog, thiab cov noob abrasive tsis yooj yim tawg. yog li ua rau nws lub neej ua haujlwm ntev dua.