Marka muunadahadhoobada silikoon ee daloolsanMarkii ugu horreysay ee lagu arkay shaybaarka, qaab-dhismeedka u eg malabka oo lagu soo bandhigay mikroskoobka elektaroonigga ah wuxuu u ekaa sidii guri shinni ah oo malaayiin jeer la weyneeyay. Maaddadan gaarka ah oo leh daloolo dhan 15-60% ayaa si aamusnaan ah uga soo wareegaysa qolalka gubashada ee matoorada hawada una gudbaysa nolol maalmeedkeenna.
Turbine gaas ah oo heerkulkiisu yahay 1600℃, walxaha caadiga ah ayaa muddo dheer isu beddelay bir dhalaalaysa, laakiin carbide silicon ah oo daloolsan ayaa ilaaliya xasillooni la yaab leh. Sannadkii hore, markii uu booqday Machadka Dhoobada ee Akadeemiyada Sayniska Shiinaha ee Shanghai, cilmi-baare ayaa muujiyay tijaabo xiiso leh: isagoo dhigaya xaashi carbide silicon ah oo daloolsan olol oksijiin-acetylene ah (qiyaastii 3000℃), heerkulbeegga dhabarka ku yaal wuxuu muujiyay inuu kor u kacay 72℃ oo keliya. Iska caabbinta kulaylka ee ka timid qaab-dhismeedka kiristaalka β-SiC waxay ka dhigaysaa "hubka aan la arki karin" ee nidaamka ilaalinta kulaylka ee dayax-gacmeedka. Xitaa ka sii fiican, dalooladaas cabbirka micron-ka ah waxay la mid yihiin qiiqa yaryar ee aan la tirin karin, taasoo yaraynaysa hufnaanta gudbinta kulaylka 40-60% marka la barbar dhigo dhoobada adag.
Malaha xitaa saynisyahannada agabka ma aysan fileynin in noocan dhoobada ah, oo asal ahaan loo sameeyay deegaanno aad u daran, uu la kulmi doono gu' labaad oo dhinaca caafimaadka ah. Cilmi-baaris caafimaad oo lagu daabacay Joornaalka Bayoolajiga sannadkii 2024 ayaa muujinaysa in qaababka silikoon carbide oo leh qaab-dhismeed cabbirkiisu yahay daloolka gradient (5μm dusha sare iyo 200μm xagga hoose) ay leeyihiin heer isku-dhafka lafaha oo 2.3 jeer ka sarreeya kan lagu tallaalay birta titanium-ka dhaqameed.
Habka loo diyaariyo carbide silicon ah oo daloolsan laftiisu waa sixir kiimiko ah. Iyada oo loo marayo habka wakiilka sameeya daloolada (badanaa polymethyl methacrylate microspheres) ama habka sintering reaction, injineerada agabka ayaa si sax ah u xakamayn kara astaamaha daloolada sida cadarsameeyayaasha. Waxa xiiso leh, shatigii ugu dambeeyay ee Shirkadda 3M ee Mareykanka ayaa muujinaya in isticmaalka diatomite dib loo warshadeeyay oo ah qaab dabiici ah uusan kaliya yareynin kharashyada wax soo saarka 18%, laakiin sidoo kale si lama filaan ah ayuu u helaa qaab-dhismeed bionic ah oo la mid ah lafaha coral. Farsamadan "u beddelka qashinka khasnadda" waxay si sax ah ula jaanqaadaysaa xigmadda Taoist ee "faa'iidada kuwa aan waxba tarayn".
Codsiga
- Dhinaca ilaalinta deegaanka:Maadaama ay tahay walaxda asaasiga ah ee shaandheeyayaasha walxaha baabuurta naaftada ah (DPF), waxay qaban kartaa 99.7% PM2.5
- Kacaanka Tamarta:Taageerada elektroodka ee unugyada shidaalka oksaydhka adag (SOFC) waxay kor u qaaddaa hufnaanta wax soo saarka korontada ilaa 65%
- Bayooloji:Qaab-dhismeedka daloolka ee saqafyada lafaha ee 3D-daabacan waxay kor u qaadaan koritaanka unugyada waxayna soo gaabiyaan wareegga bogsashada kiliinikada 30%
- Wax soo saarka Semiconductor-ka:Cimriga suufka wafer-ka ah ayaa saddex jeer la kordhiyay, habka 3nm ee TSMC-na si weyn ayaa loo iibsaday.
Waqtiga boostada: Luulyo-30-2025