Silicon Nitride (Si3N4) hmoov 200 Mesh

Silicon Nitride (Si3N4) Hmoov 200 mesh muaj qhov loj ntawm 75μm.Silicon nitride hmoovntawm qhov loj me no muaj qhov loj me me, uas tsis yog qhov ntxhib dhau los ua kom tsis sib luag hauv qee qhov kev siv, tsis zoo heev ua rau agglomeration thiab lwm yam teeb meem, thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm ntau yam txheej txheem thiab kev siv. Nws feem ntau yog tawm -dawb, thiab nws cov xim yog lub teeb. Hauv qee cov ntawv thov uas xav tau cov khoom siv zoo li, nws tuaj yeem muab qhov pom kev zoo dua.

Silicon hmoov ncaj qha nitridation txoj kev:

Muab cov hmoov silicon tso rau hauv qhov chaw nitrogen thiab ua cov tshuaj nitridation ntawm qhov kub thiab txias. Txoj kev no muaj cov txheej txheem yooj yim ntws thiab tus nqi qis.

Gas theem txoj kev:

Nws feem ntau suav nrog laser induced vapor deposition thiab plasma vapor synthesis. Txij li thaum nws yog cov tshuaj tiv thaiv roj, cov cua ntws tau yooj yim los tswj thaum lub sij hawm cov tshuaj tiv thaiv, thiab cov khoom yog siab purity thiab ultrafine.

Sol-gel txoj kev:

Siv silica sol, urea thiab carbon dub ua raw cov ntaub ntawv, ib tug sol yog tsim los ntawm hydrolysis thiab polycondensation cov tshuaj tiv thaiv, thiab ces gelation, ziab thiab siab -kub calcination yog ua kom tau silicon nitride hmoov. Cov hmoov npaj los ntawm txoj kev no muaj siab purity, me me thiab kev faib tawm tsis sib xws, tab sis cov txheej txheem yog qhov nyuaj thiab lub voj voog ntau lawm ntev.

 Advanced Ceramic Cheebtsam: Siab-Tub & Hnav-Resistant Parts

Si3N4 Powder 200 Mesh yog cov khoom siv tseem ceeb rau kev ua haujlwm siab -cov khoom siv ceramic, ua tsaug rau nws qhov kub thiab txias (1600-1750 degree) thiab kev loj hlob zoo ib yam:

Ceramic Bearings:Sintered Si3N4 bearings (siv 200 Mesh hmoov) muaj kev sib txhuam coefficient ntawm 0.001-0.003 (1/5 ntawm steel bearings) thiab kev pab lub neej 10x ntev dua- siv nyob rau hauv high-speed motors (xws li, 10, 000+ rpm.) thiab aerospace engines.
High -Tsub Nozzles:Sintered Si3N4 nozzles (density Ntau dua los yog sib npaug rau 98% ntawm theoretical ntom) tiv taus 1600℃molten hlau yaig; German automotive foundry txo nozzle hloov zaus los ntawm 1 lub lis piam mus rau 3 lub hlis.
Cov cuab yeej txiav:Si3N4 ceramic cutters (nrog TiC additives) txiav hardened steel (HRC 60+) tsis coolant, txiav ceev 2x sai dua cemented carbide cov cuab yeej.

 Metallurgy: Cov khoom siv refractory & additives

Hauv cov txheej txheem metallurgical, Silicon Nitride Si3N4 Powder 200 Mesh ua raws li qhov siab -kub refractory thiab alloy modifier:

Refractory Linings:Sib xyaw nrog alumina (Al2O3) los ua Si3N4-raws li cov cib refractory, uas tiv taus 1800℃molten steel / slag corrosion-siv hauv steel ladles thiab induction furnace linings, ncua kev pab cuam lub neej los ntawm 50%.
Steelmaking Additives:Ntxiv 0.1-0.3% Si3N4 hmoov rau high-speed steel cov ntaub ntawv zoo SiNx precipitates, nce hardness ntawm HRC 62 mus rau HRC 65 thiab liab hardness (lub zog ntawm qhov kub thiab txias) los ntawm 20%.

 Electronics: Insulating & Thaum tshav kub kub-Cov ntaub ntawv Dissipating

High-purity (Ntau dua lossis sib npaug li 99.5%) Si3N4 Powder 200 Mesh yog qhov tseem ceeb rau cov khoom siv hluav taws xob vim nws cov hluav taws xob rwb thaiv tsev zoo heev (Volume resistivity Ntau dua lossis sib npaug ntawm 10¹⁴ Ω·cm ntawm 25 degree) thiab thermal conductivity (30-50 W / m·K):

IC substrates:Sintered Si3N4 substrates hloov alumina substrates hauv 5G hauv paus chaw nres tsheb chips, txo cov cua sov los ntawm 35% thiab txhim kho nti kev ntseeg siab.
Nyias- Zaj duab xis txheej:Siv rau hauv PVD / CVD txheej rau semiconductor wafers, tsim ib 100-200 nm Si3N4 zaj duab xis uas ua raws li insulating barrier ntawm hlau txheej.

 Tshiab Zog: Roj teeb & Hnub Ci Daim Ntawv Thov

Lithium-Ion Battery Separators:Txheej 200 Mesh Si3N4 hmoov ntawm polypropylene (PP) separators txhim kho thermal stability -resist shrinkage ntawm 150℃(vs . 120℃rau uncoated separators), txo cov roj teeb hluav taws xob.
Solar Cell Anti-Reflection Coatings:Si3N4 films (ua los ntawm 200 Mesh hmoov) ntawm crystalline silicon solar cells txo lub teeb pom kev ntawm 35% mus rau 5%, nce photoelectric conversion efficiency ntawm 2-3%.

Q: Vim li cas 200 mesh yog ib qho kev xaiv nrov rau Si3N4 hmoov, thiab kuv yuav ua li cas thiaj paub tias nws zoo rau kuv?
A:200 mesh (kwv yees li 75µm) muaj ntau yam sib npaug. Nws yog qhov zoo txaus los muab kev sib xyaw ua ke zoo thiab sib xyaw ua ke hauv cov txheej txheem ceramic (xws li nias lossis plam casting) tab sis tsis zoo li ntawd nws nyuaj rau kev ua haujlwm vim plua plav lossis agglomeration. Nws yog qhov pib zoo rau ntau daim ntawv thov. Txawm li cas los xij, rau cov ntaub nplaum nyias nyias lossis cov txheej txheem tshwj xeeb, yuav tsum muaj cov mesh zoo dua (xws li, 325 mesh) yuav tsum tau. Peb tuaj yeem pab koj ntsuas koj cov kev xav tau tshwj xeeb.

Q: Dab tsi yog qhov txawv ntawm kev siv Si3N4 hmoov ncaj qha piv rau kev siv Ferro Silicon Nitride?
A: Qhov no yog qhov sib txawv tseem ceeb, raws li tau sau tseg hauv koj lub rooj. Pure Silicon Nitride (Si3N4) hmoov yog siv thaum cov khoom kawg xav tau cov khoom siv tshwj xeeb ntawm Si3N4-siab- qhov kub thiab txias, hnav tsis kam, thermal shock resistance, thiab hluav taws xob rwb thaiv tsev- rau kev siv ceramics. Ferro Silicon Nitride yog tus nqi qis dua cov khoom siv feem ntau siv los ua cov khoom siv ntxiv hauv kev lag luam steel los qhia nitrogen thiab silicon rau hauv cov hlau molten rau ntxiv dag zog, lossis ua cov khoom tiv thaiv refractory. Koj xaiv nyob ntawm koj daim ntawv thov: advanced ceramics vs. metallurgical additive.

Kev Ntsuas Kev Ntsuas Ntawm Ferrosilicon Nitride Thiab Silicon Nitride

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