Ina ngā tauira ongā uku karāhe silicon porousi kitea tuatahitia i roto i te taiwhanga, ko ngā hanganga rite ki te honikoma i whakaaturia i raro i te karu hikohiko i rite tonu ki te whare pī i whakanuia kia miriona ngā wā. Ko tēnei rauemi motuhake me te porosity o te 15-60% kei te neke mārire mai i ngā rūma mura o ngā miihini rererangi ki roto i ō tātou oranga o ia rā.
I roto i te tāhū hau i te 1600℃, kua roa ngā rauemi noa e huri ana hei rino rewa, engari he tino pumau tonu te karāhe silicon porous. I te tau kua hipa, i tana haerenga ki te Shanghai Institute of Ceramics o te Chinese Academy of Sciences, i whakaatu tetahi kairangahau i tētahi whakamātautau whakamere: i te whakatakoto i tētahi pepa karāhe silicon porous ki roto i te mura hāora-acetylene (tata ki te 3000℃), i whakaatuhia e te inemahana kei muri ko te 72℃ anake te pikinga. Ko tēnei ātete wera i ahu mai i te hanganga karaihe β-SiC ka waiho hei "pūeru huna" mō te pūnaha tiaki wera o ngā waka rererangi. He pai ake, ko aua pore iti-iti he rite ki ngā auahi iti, e whakaiti ana i te pai o te kawe wera mā te 40-60% ki te whakataurite ki ngā uku totoka.
Ahakoa ngā kaipūtaiao rauemi, kāore pea i whakaaro ka pāngia tēnei momo uku, i hangaia tuatahitia mō ngā taiao tino kino, e te puna tuarua i roto i te ao hauora. E whakaatu ana ngā rangahau haumanu i whakaputaina i roto i te Journal of Biomaterials i te tau 2024, ko ngā tūāpapa silicon carbide me ngā hanganga rahi pore gradient (5μm i te mata me te 200μm i te raro) he 2.3 ngā wā teitei ake te tere whakauru wheua i tērā o ngā whakaurunga koranu titanium tuku iho.
He mahi makutu matū te tukanga whakarite i te silicon carbide porous. Mā te tikanga hanga-pore (ko ngā microspheres polymethyl methacrylate te tikanga) te tikanga sintering tauhohenga rānei, ka taea e ngā kaihanga rauemi te whakahaere tika i ngā āhuatanga o ngā pore pērā i ngā kaihanga kakara. He mea whakamīharo, ko te patent hou a te Kamupene 3M i te United States e whakaatu ana ko te whakamahi i te diatomite hangarua hei tauira taiao ehara i te mea ka whakaiti noa i ngā utu whakaputa mā te 18%, engari ka whiwhi ohorere hoki i te hanganga bionic rite ki ngā wheua coral. Ko tēnei tikanga "te huri i te para hei taonga" e hangai ana ki te whakaaro nui o te Taoist mō te "whai hua o te koretake".
Tono
- I roto i te mara o te tiaki taiao:Hei rauemi matua mō ngā tātari matūriki waka tīhi (DPF), ka taea e ia te hopu i te 99.7% o te PM2.5
- Te Huringa Pūngao:Mā te tautoko irahiko mō ngā pūtau wahie waikura totoka (SOFC) ka piki ake te pai o te whakaputa hiko ki te 65%
- Hauora koiora:Mā te hanganga pūwero o ngā tūāpapa wheua kua tāia ki te 3D ka whakatairanga i te tipu o te pūtau, ā, ka whakapoto i te huringa whakaora haumanu mā te 30%
- Te hanga i ngā kaiārahi haurua:Kua toru ngā wā kua roa ake te roa o te ora o ngā papa whakakanapa wafer, ā, kua hokona nuitia te tukanga 3nm a TSMC.
Wā tuku: Hurae-30-2025