Silicon nitride (Si₃N₄)yog ib qho kev lag luam zoo tshaj plaws ceramic dav pom zoo rau nws cov kev sib xyaw ua ke ntawm kev siv tshuab siab, zoo heev tawg toughness, hnav tsis kam, thermal stability, thiab hluav taws xob rwb thaiv tsev. Tsis zoo li cov pa ceramics, silicon nitride tswj kev ua haujlwm zoo heev hauv qhov kub thiab txias, ua rau nws yog ib qho ntawm cov khoom siv txhim khu kev qha tshaj plaws rau kev xav tau kev lag luam ib puag ncig.
Niaj hnub no, silicon nitride yog dav siv nyob rau hauv EV fais fab modules, semiconductor khoom, aerospace Cheebtsam, ceramic bearings, mechanical seals, thiab high -kub rauv tshuab. Raws li kev tsim khoom lag luam tseem tab tom hloov zuj zus, nws tau hloov pauv cov hlau thiab cov pa ceramics hauv cov ntawv thov uas lub neej ua haujlwm ntev thiab kev ntseeg siab yog qhov tseem ceeb.
Yuav ua li cas yog Silicon Nitride Ceramic Manufactured?
Kev ua tau zoo ntawm silicon nitride nyob ntawm qhov hnyav ntawm nws cov txheej txheem sintering. Plaub txoj kev tsim khoom feem ntau yog siv:
Cov tshuaj tiv thaiv -Bonded Silicon Nitride (RBSN)
RBSN yog tsim los ntawm nitriding silicon hmoov. Nws muaj kev ruaj ntseg zoo zoo nrog qhov tsawg tsawg, ua rau nws haum rau cov duab nyuaj. Txawm li cas los xij, nws qhov porosity siab txwv tsis pub siv lub zog, yog li nws feem ntau yog siv rau kev hnav khaub ncaws dav dav - cov khoom tiv thaiv thiab cov khoom siv kho mob.
Kub-Nias Silicon Nitride (HPSN)
Kub nias ua ke nrog kub siab nrog txhua yam siab kom ua tiav nyob ze - puv ntom ntom thiab cov khoom siv kho tshuab zoo heev. Cov txheej txheem no tsim cov khoom zoo tshaj -qib cov ntaub ntawv rau cov khoom siv hauv aerospace, cov cuab yeej txiav, thiab lwm yam kev ua haujlwm siab, txawm tias cov nqi tsim khoom kuj yog siab heev.
Gas Siab Sintered Silicon Nitride (GPSN)
GPSN yog cov txheej txheem kev lag luam siv dav tshaj plaws niaj hnub no. Nws muab qhov sib npaug zoo ntawm kev ua haujlwm zoo, kev tsim khoom yooj yim, thiab cov nqi tsim khoom, ua rau nws tsim nyog rau lub zog hluav taws xob substrates, ceramic bearings, nozzles, thiab cov khoom siv.
Pressureless Sintered Silicon Nitride (SSN)
SSN muaj kev ua haujlwm loj - nplai ntau lawm rau cov qauv ceramic daim hlau thiab kev siv engineering dav dav thaum tswj xyuas txhua yam kev ua haujlwm zoo.
Cov khoom tseem ceeb ntawm Silicon Nitride
Silicon nitride feem ntau xaiv vim nws sib txuas ntau yam kev ua tau zoo uas ob peb cov ntaub ntawv engineering tuaj yeem sib phim.
| Khoom | Silicon Nitride |
| Qhov ntom | 3.2 g / cm³ |
| Hardness | Mas 8–9 |
| Fracture Toughness | 6-8 MPa·m¹ᐟ² |
| Qhov siab tshaj qhov kev pabcuam kub | Txog li 1200℃hauv huab cua |
| Hluav taws xob rwb thaiv tsev | Zoo heev |
| Hnav Resistance | Zoo heev |
| Thermal Shock Resistance | Zoo heev |
Piv nrog alumina ceramics, silicon nitride muaj ntau dua tawg toughness thiab cuam tshuam tsis kam. Piv nrog aluminium nitride, nws muab kev ntseeg tau zoo tshaj plaws, txawm hais tias aluminium nitride muaj thermal conductivity ntau dua.
Cov khoom sib npaug no ua rau silicon nitride yog ib qho ntawm cov khoom nyiam tshaj plaws rau siab -kev siv cov txheej txheem kub.
Tej kev siv
Ua tsaug rau nws qhov kev ua tau zoo tshwj xeeb, silicon nitride yog siv thoob plaws ntau qhov kev lag luam siab - kawg.
Fais fab Electronics
Silicon nitride substrates tau dav siv nyob rau hauv EV inverters, SiC fais fab modules, thiab IGBT ntim vim lawv zoo heev mechanical kev ntseeg siab thiab hluav taws xob rwb thaiv tsev.
Semiconductor Manufacturing
Lub tshuab nqus tsev chucks, phau ntawv qhia, wafer tuav Cheebtsam, thiab precision fixtures tau txais txiaj ntsig los ntawm silicon nitride qhov hnav tsis kam thiab qhov ruaj khov.
Aerospace
High -kub bearings, sensor tiv thaiv tubes, turbine Cheebtsam, thiab engine hardware siv silicon nitride los txo qhov hnyav thaum tuav lub zog nyob rau hauv huab cua kub.
Khoom siv
Mechanical seals, ceramic bearings, nozzles, furnace fixtures, and wear-cov khoom tiv thaiv ua rau lub neej ua haujlwm ntev dua li cov khoom siv hlau.
Manufacturing Challenges
Txawm hais tias silicon nitride muaj kev ua tau zoo tshwj xeeb, nws kuj yog ib qho nyuaj tshaj plaws engineering ceramics rau tshuab.
Nws cov hardness siab ua rau cov cuab yeej hnav sai thaum lub sij hawm sib tsoo, thaum nws cov xwm txheej ua rau muaj kev pheej hmoo ntawm ntug chipping thiab microcracks thaum lub sij hawm siv tshuab. Ua qhov precision qhov, contours complex, los yog nyias ceramic substrates yuav ua tau ob qho tib si kim thiab sij hawm-siv.
Rau manufacturers, machining nqi feem ntau sawv cev ib feem tseem ceeb ntawm tag nrho cov khoom siv.
Vim li cas Precision Laser Machining Yog Qhov Zoo Tshaj Plaws
Precision laser processing muab ib txoj hauv kev zoo rau kev ua cov khoom siv silicon nitride.
Tsis zoo li cov pa machining, kev ua laser yog kiag li tsis yog -kev sib cuag, tshem tawm cov neeg kho tshuab txiav quab yuam uas yuav ua rau nkig ceramics. Optimized laser parameters kuj pab txo cov ntug chipping thiab txhim kho qhov sib xws ntawm qhov sib xws, tshwj xeeb tshaj yog rau qhov precision qhov thiab cov profiles nyuaj.
Laser machining yog tshwj xeeb tshaj yog haum rau:
Precision txiav ntawm silicon nitride substrates
Micro- qhov drilling
Complex contour machining
Nyias ceramic phaj
High -precision prototype kev txhim kho
Rau ntau daim ntawv thov, kev ua laser txo cov kev ua haujlwm thib ob thaum txhim kho kev tsim khoom.
WHYC Laser Solutions rau Silicon Nitride
YCLaser tshwj xeeb hauvprecision laser ua khoom rau advanced ceramics, suav nrog silicon nitride.
Nws cov tshuab laser ceramic txhawb kev txiav precision, drilling, profiling, thiab customized machining rau ntau yam ntawm Si₃N₄ Cheebtsam. Cov txheej txheem ntau lawm npog cov khoom tuab ntawm 0.2 hli mus rau 11 hli, thaum cov khoom siv tuab tuaj yeem raug soj ntsuam los ntawm cov qauv kuaj. WHYC Laser tau ua tiav cov txheej txheem silicon nitride mus txog 21 hli raws li cov txheej txheem kev cai tshwj xeeb rau R&D thiab tshwj xeeb - daim ntawv thov.
Ntxiv nrog rau cov khoom siv laser,YCLaserkuj muab kev cog lus machining cov kev pab cuam, pab manufacturers validate designs thiab optimize ntau lawm ua ntej nqis peev rau hauv cov khoom.
Xaus
Silicon nitride tau dhau los ua ib qho tseem ceeb tshaj plaws engineering ceramics vim nws sib txuas lub zog siab, zoo heev tawg toughness, superior hnav tsis kam, thermal stability, thiab hluav taws xob rwb thaiv tsev nyob rau hauv ib yam khoom.
Raws li kev thov txuas ntxiv mus thoob plaws lub tsheb hluav taws xob, kev tsim khoom semiconductor, aerospace, thiab kev lag luam automation, precision machining technologies yuav ua lub luag haujlwm tseem ceeb hauv kev qhib tag nrho cov peev txheej ntawm silicon nitride Cheebtsam.
Txawm hais tias kev tsim khoom siab -kev ua tau zoo substrates, hnav- cov khoom siv hluav taws xob tiv taus, lossis cov txheej txheem txheej txheem ceramics, xaiv cov txheej txheem machining txoj cai yog ib qho tseem ceeb xws li xaiv cov khoom tsim nyog. Precision laser ua yog pab cov tuam txhab ua kom zoo dua qub, txo cov khib nyiab, thiab ua tiav ntau txhim khu kev qha ntawm cov khoom siv silicon nitride siab heev.
