Nws yog xim hlau Silicon Hmoov, nrog sib txawv ntau thiab tsawg, yog ua kom muaj kev lag luam thiab cov kev siv thev naus laus zis. Lub particle loj cuam tshuam nrog nws cov kev cuam tshuam, cov wangability, thiab kev ua haujlwm hauv cov txheej txheem sib txawv. Hauv qab no yog kev tawg ntawm qhov ntau qhov ntau thiab tsawg tau siv:
1. Coarse Powder (Particle Size >45 µm)
Cov Ntawv Thov:
Foundries & Casting:
Siv rau hauv cov xuab zeb pwm kom txhim kho cov pwm tso thiab tiv thaiv cov khoom nplaum hlau.
Txhim khu fluidity hauv txhuas thiab magnesium alloy casting.
Kev tsa tsev:
Ntxiv rau cov khoom siv ua vaj tse lossis cov khoom siv regractory rau thermalistance thiab cov qauv kev ruaj ntseg.
Metallurgy:
Ua rau deoxidizing hauv statmaking statmaking (cov khoom loj dua kom tswj tau cov pa oxygen kom meej).
Yog vim li cas coarse?
Txo thaj chaw qis dua qhov ua kom muaj kev cuam tshuam nrog cov kev siv cov kev pab cuam uas muaj cov kev sib tw thiab cov kev tiv thaiv tau tseem ceeb.
2. Cov hmoov nruab nrab (10-45 μm)
Cov Ntawv Thov:
Alloy Ntau Lawm:
Xyaw nrog txhuas lossis magnesium los ua cov nyom alloys (piv txwv li al-Si rau cov chaw automotive).
Cov ntaub ntawv sib txhuam:
Siv nyob rau hauv lub xauv thiab clutches rau hnav tsis kam thiab sov dissipation.
Kev tshoov siab:
Pab tswj kev kub ntxhov siab hauv vuam lossis hlau ua kom zoo nkauj.
Vim li cas Nruab Nrab?
Sib npaug convactivity thiab tuav yooj yim, ua rau nws haum rau metallurgical cov txheej txheem uas xav tau kev sib cuam tshuam txog kev sib cuam tshuam ntev li cas.
3. Hmoov hmoov (<10 µm)
Cov Ntawv Thov:
Cov khoom siv hluav taws xob & cov semiconductors:
Siv hauv cov tshuaj vapor deposition (CVD) los tsim Silicon Carbide (Sic) lossis silicon nitride (Si₃n₄) rau cov khaubncaws sab nraud povtseg.
Kev Siv Hluav Taws Xob Hluav Taws Xob:
Reactant hauv kev tsim cov silicones, silanes, thiab organosilicon tebchaw.
Lithium-ion roj teeb:
Anode cov khoom siv (thaum ua ke nrog graphite) rau kev ua kom zoo nkauj thiab lub neej voj voog.
Vim li cas thiaj zoo?
Qhov chaw siab dua nce ntxiv ua kom muaj kev kub ntxhov, ua kom cov tshuaj tiv thaiv zoo thiab txhim kho electrochemical kev ua tau zoo hauv cov roj teeb.
4. Ultrafine / nanopowder (<1 µm)
Cov Ntawv Thov:
Kev sib xyaw ua ntau dua:
Kev txhawb nqa Matrices hauv Aerospace cov ntaub ntawv (piv txwv li, carbon fiber ntau sib xyaw) rau lub zog thiab lub teeb yuag.
Hnub ci hlwb:
Siv nyob rau hauv nyias-zaj duab xis photovoltaics los tsim cov chaw nanostructured chaw rau siab dua lub teeb nqus.
Catalysts:
Txhawb cov txheej txheem catalytic nyob rau hauv hydrogen ntau lawm lossis cov kuab paug.
Vim li cas ultrafine?
Nanoscale hais ua yeeb yam tshwm sim quantum / kev ua si, tseem ceeb rau high-tech cov ntawv thov zoo li lub zog cia thiab optoelectronics.
Qhov tseem ceeb tiv thaiv me me
Kev xav tau: Cov khoom me me tawm sai sai (piv txwv li, roj teeb anodes thiab casting fluxes).
Kev kub heev: Coarser hmoov dej ntws zoo dua hauv cov system siv hluav taws xob (piv txwv li, pub rau qhov cub tawg).
Tus nqi: Ultrafine hmoov yog kim vim lub zog sib tsoo cov txheej txheem.
Kev xyuas xim: Finer hais txog kev tawg txaus ntshai kev pheej hmoo (yuav tsum muaj inert atmospheres lossis tswj kev ya raws).
Cov txheej txheem ntau lawm rau kev tswj loj
Piv: Ua coarse rau nruab nrab hmoov los ntawm melting thiab disintegrating molt daipicon.
Pob Milling / Sib Tsoo: Txo qhov me me kom zoo rau cov qib zoo lossis qib eltresine rau cov kev siv tech tech.
