I te rautau 21, me te whanaketanga o te pūtaiao me te hangarau, kua riro te mōhiohio, te pūngao, ngā rauemi, me te hangarau koiora hei pou e whā o te whanaketanga o te hua pāpori o ēnei rā, nā te mea he pumau ngā āhuatanga matū, he nui te kawe wera, he iti te tauwehenga whānui wera, he iti te kiato, he pai te ātete kakahu, he pakeke teitei, he kaha miihini teitei, he ātete waikura matū me ētahi atu āhuatanga, he tere te whanaketanga i roto i te mara o ngā rauemi, he whānuitia te whakamahinga i roto i ngā peera pōro uku, ngā takirere, ngā rauemi semiconductor, te gyro, ngā taputapu ine, te rererangi me ētahi atu mara.
Kua whakawhanakehia ngā uku karāhe silicon mai i te tekau tau atu i 1960. I mua, ko te karāhe silicon te mea nui i whakamahia i roto i ngā rauemi huri miihini me ngā whare whakarewa. He nui te hiranga o ngā whenua o te ao ki te ahumahi o ngā uku matatau, ā, i nāianei ehara i te mea ko te whakarite i ngā uku karāhe silicon tuku iho anake te mea e makona ana, engari ko te hanga o ngā umanga uku hangarau teitei kua tere ake te whanaketanga, inā koa i roto i ngā whenua whakawhanake. I ngā tau tata nei, kua puta mai ngā uku maha-wāhanga i runga i ngā uku SIC tetahi i muri i tetahi, e whakapai ake ana i te pakari me te kaha o ngā rauemi monomer. Ko ngā mara matua e whā o te whakamahinga o te karāhe silicon, arā, ko ngā uku mahi, ngā rauemi whakarewa matatau, ngā mea whakakoi me ngā rauemi mata whakarewa.
He tino pai te ātete ki te kakahu o ngā uku silicon carbide
Kua rangahaua, kua whakatauhia hoki ngā uku silicon carbide o tēnei hua. Ko te ātete kakahu o tēnei hua he rite ki te 266 ngā wā o te maitai manganese, he rite ki te 1741 ngā wā o te rino maka chromium teitei. He tino pai te ātete kakahu. Ka taea tonu e ia te penapena moni. Ka taea te whakamahi tonu i ngā uku silicon carbide mō ngā tau neke atu i te tekau.
He kaha teitei, he pakeke teitei, he mama hoki ngā uku karāhe silicon
Hei momo rauemi hou, he tino kaha te whakamahinga o ngā uku silicon carbide, he tino pakeke, he tino māmā hoki te taumaha, ā, he māmā ake te tāutanga me te whakakapinga o ēnei uku silicon carbide i te whakamahinga o runga ake nei.
He maeneene te pakitara o roto o te uku silicon carbide, ā, kāore e ārai i te paura.
Ka tahuna tēnei hua i muri i te pāmahana tiketike, nō reira he matotoru te hanganga o ngā uku silicon carbide, he maeneene te mata, ā, he pai ake te ataahua ina whakamahia, nō reira, ina whakamahia i roto i te whānau, ka pai ake te ataahua.
He iti te utu o ngā uku silicon carbide
He iti ake te utu mō te hanga uku silicon carbide, nō reira kāore mātou e hiahia ki te hoko i te utu nui rawa o ngā uku silicon carbide, nō reira mō tō mātou whānau, engari ka taea hoki te penapena moni nui.
Te tono uku silicon carbide:
Pōro uku silicon carbide
He tino pai ngā āhuatanga ā-pūkaha o te pōro uku silicon carbide, he tino pai te ātete ki te waikura, he tino ātete ki te pakū, ā, he iti te tauwehenga waku. Mēnā he kaha teitei te pāmahana o te pōro uku silicon carbide, ka tino heke te kaha o te rauemi uku noa i te 1200 ~ 1400 nekehanga Celsius, ā, ka mau tonu te kaha piko o te silicon carbide i te 1400 nekehanga Celsius i te taumata teitei ake o te 500 ~ 600MPa, nō reira ka taea e tōna pāmahana mahi te eke ki te 1600 ~ 1700 nekehanga Celsius.
Rauemi hiato karawiti silicon
Kua whānuitia te whakamahinga o ngā hanganga matūriki waro silicon carbide (SiC-CMC) i roto i te ao rererangi mō ō rātou hanganga wera pāmahana teitei nā te mea he pakari teitei, he kaha teitei, he ātete pai ki te waikura. Ko te tukanga whakarite o te SiC-CMC ko te hanga muka, te maimoatanga pāmahana teitei, te paninga mesophage, te whakakīkī matrix me te maimoatanga muri. He kaha teitei me te pakari pai te muka waro kaha teitei, ā, he pai ngā āhuatanga miihini o te tinana kua oti te hanga.
Ko te paninga Mesophache (arā, te hangarau atanga) te hangarau matua i roto i te tukanga whakarite, ko ngā tikanga whakarite o te paninga mesophache ko te matū osmosis vapor (CVI), te matū tāpui vapor (CVD), te tikanga sol-sol (Sol-gcl), te tikanga pakaru polymer impregnation (PLP), ko te tikanga CVI me te tikanga PIP te mea tino pai mō te whakarite i ngā hiato matrix silicon carbide.
Ko ngā rauemi paninga ā-kanohi ko te waro pyrolytic, te boron nitride me te boron carbide, ā, kua nui haere te aro ki te boron carbide hei momo paninga ā-kanohi ātete ki te waikura. Ko te SiC-CMC, e whakamahia ana i roto i ngā āhuatanga waikura mō te wā roa, me whai maimoatanga ātete waikura anō hoki, arā, ka whakatakotoria he paparanga o te silicon carbide matotoru tata ki te 100μm ki te mata o te hua mā te tukanga CVD hei whakapai ake i tōna ātete waikura ki te pāmahana teitei.
Wā tuku: 14-Pepuere-2023