Kua roa te whakamahinga whānui o ngā uku silicon carbide (SiC) i roto i ngā mara hanga matatau nā te mea he pakeke rawa, he kaha rawa, he iti te tauwehenga o te whakawhānui wera, he nui te kawe wera, he pai te pumau matū, he pai te ātete ki ngā ru wera me te ātete ki te waikura. Haunga ngā āhuatanga kua whakahuatia ake nei o ngā uku silicon carbide, he whānui ngā tono a ngā uku silicon carbide porous, me tō rātou hanganga porous moroiti ahurei, i roto i ngā mara pēnei i te whakarewa, te miihini matū, te tiaki taiao me te pūngao, ā, he whānui ake te whānuitanga o te tono o ngā uku silicon carbide.
Ngā āhuatanga motuhake ouku karāhe silicon porousKo te nuinga o ngā painga he hanganga motuhake o te pūwero, tae atu ki te pūwero, te rahi me te tohatoha o te pūwero, me te āhua o te pūwero, me ētahi atu. Nō reira, me whakahaere te pūwero, te rahi me te tohatoha o te pūwero, tae atu ki te āhua o ngā pūwero mā te tikanga whakarite kia whiwhi ai i te hanganga pūwero e hiahiatia ana. Nō reira, ko tōna tikanga whakarite te kaupapa matua o ngā rangahau a te tangata. Ko te nuinga o tēnei tuhinga e arotake ana i te ahunga whakamua o ngā rangahau i roto i ngā tikanga whakarite o ngā uku silicon carbide pūwero i te kāinga me tāwāhi i ngā tau tata nei.
1. Tikanga Ā-tinana
Ko te tikanga ā-tinana e pā ana ki te meka ko ngā āputa i roto i ngā uku silicon carbide porous ka puta mai i te raupapa o ngā āhuatanga ā-tinana i te wā o te tukanga whakarite, me te kore e puta he tauhohenga matū, he whakaputanga rānei o ngā matū hou. Ko te tikanga matua ko te hanga i tētahi hanganga porous mā te whakawhirinaki ki ngā āputa i mahue mai i te whakahekenga wera o ngā matū totoka, te mimiti o te wāhanga wai, me te whakangawari tika o te wāhanga totoka. Ko ngā tikanga noa ko te tikanga tāpae matūriki, te tikanga whakamaroke-tio, te tikanga sol-gel, me ētahi atu. Ka taea hoki te whakamahi i te hangarau tā 3D kua puta ake i ngā tau tata nei ki te tā tika me te whakarite i ngā hanganga porous.
1.1 Tikanga whakarārangi matūriki
Ko te tikanga whakakīkī matūriki te huarahi māmā rawa atu ki te whakarite i ngā uku silicon carbide porous. Ko te kaupapa o tēnei tikanga he whakamahi i te mahi whakakīkī o ngā matūriki uku hei hanga kaki whakakīkī i waenga i ngā matūriki SiC rerekē, ā, mā reira ka taea ai e te kohikohi matūriki te hanga uku porous. Hei whakaiti i te pāmahana whakakīkī, ka tāpirihia he nui o te here me te ira rewa iti iho hei hanga hononga i waenga i ngā matūriki SiC rerekē. Nā te mea ka hurihia ngā pūwero katoa i roto i te tikanga whakakīkī matūriki mai i ngā āputa whakakīkī i waenga i ngā matūriki SiC, ka taea te whakahaere i te porous me te rahi o ngā pūwero o ngā uku porous kua oti mā te whakarerekē i te rahi o te paura, te momo me te nui o te here i tāpirihia, me ngā tawhā whakakīkī.
Kāore e hiahiatia he tāpiri atu i ētahi atu matū hanga-pūwero mō te whakarite i ngā uku silicon carbide porous mā te tikanga tāpae matūriki. He māmā noa iho te tukanga, ā, he ngāwari noa iho te whakahaere. Heoi, he iti noa iho te pūwero o ngā uku porous i whakaritea mā tēnei tikanga. Ko te āhua, te rahi o ngā pūwero me te pūwero o ngā pūwero ka whakatauhia e te āhua, te rahi o ngā matūriki me te tohatoha o ngā matūriki rauemi mata, tae atu ki te nui o te sintering.
1.2 Tikanga Whakamaroke-tio
Ko te whakamaroke-tio he tikanga e uru ana ki te whakaranu ōrite i ngā konganuku uku ki te wai, ki ngā whakarewa rauropi rānei, me te aroaro o te nui o ngā mea whakamarara, ngā mea here rānei e tika ana hei hanga i tētahi paru. Kātahi ka ringihia te paru kua whakaranua pai ki roto i tētahi pokepokea ai, ā, ka tere te whakatio i ngā pāmahana iti, kia tere ai te totoka o te mata o te wai hei totoka. Muri iho, ka whakatōkia te totoka kua totoka, ā, ka tangohia mā te whakaiti pēhanga, mā te whakamaroke korehau rānei. Ko te tikanga mō te whiwhi i tētahi tinana matomato me ngā hanganga pūwero kua whakaritea kia toe i roto i te paru, ā, i te mutunga ka whakatōkia kia puta ai he uku karaweti silicon porous.
1.3 Tikanga Tānga 3D
Ko te tikanga tā 3D mō te whakarite i ngā uku silicon carbide porous he momo tukanga whakarite hou kua whanake i ngā tau tata nei. E whakawhirinaki ana tēnei tukanga ki tētahi tauira raraunga toru-ahu i hangaia me te āwhina o te rorohiko. Mā te pane tā, ka rehuhia te hononga hei whakarārangi i te paura rauemi mata paparanga i te paparanga ki roto i tētahi hanganga whatunga toru-ahu. Mā te whakakotahitanga o te tā 3D me ngā tukanga sintering tauhohenga ka taea te whakatutuki i te hanga kore-pokepoke me te hanganga tata-rahi o ngā uku āhua matatini.
Ko te tikanga tā 3D mō te whakarite i ngā uku silicon carbide porous he tukanga hanga māmā, he pai te whakarite me te tukatuka, ā, kāore he hiahia mō ngā pokepokea. Ehara i te mea ka taea anake te whakamahi hei whakarite i ngā uku silicon carbide porous me ngā āhua uaua, ngā hanganga moroiti ōrite me te hononga pore pai, engari ka taea hoki te whakahaere me te whakarerekē i te pore me te rahi o ngā pore o ngā uku porous. Heoi, kei te wāhanga rangahau tūhura tonu tēnei tikanga i tēnei wā, ā, me whakapai ake anō ngā tawhā tukanga. Hei tāpiri, he uaua ki tēnei tikanga te whakarite i ngā uku silicon carbide porous kaha-teitei i te taahiraa kotahi. Me āwhina ētahi atu tukanga ki te whakaputa i ngā hua e hiahiatia ana, he nui ngā utu.
1.4 Te pahuka
Ko te tikanga whakapūpū ko te tāpiri i te hau, i ngā matū rānei ka taea te whakaputa hau mā te tukatuka i muri mai ki te tinana matomato uku, ki te matū mua rānei, kātahi ka whakapūpū kia puta ai he uku silicon carbide porous. He rerekē ki ētahi atu tikanga whakarite, he tukanga whai hua te tikanga whakapūpū mō te whakarite uku pūtau-katia.
2. Tikanga Matū
Ko te tikanga matū e pā ana ki te hanganga pūwero i roto i ngā uku silicon carbide pūwero ka hangaia mā te pirau, te tauhohenga rānei o ngā tote kore-waro, ngā matū waro rānei kua tāpirihia, ka waiho ngā wāhi takoto kau i ngā tūranga taketake. Ko ngā tikanga matū noa mō te whakarite i ngā uku silicon carbide pūwero ko te tikanga tāpiri kaihoko hanga-pūwero, te tikanga whakakī pahuka waro, me te tikanga tauira koiora, me ētahi atu.
2.1 Te Whakakī Pahuka Waro
Ko te tikanga whakakī pahuka waro ko te whakamahi i te pahuka waro hei tauira, te paninga ōrite i te paru uku kua oti te whakarite ki runga i te tauira, te tuku rānei i te tauira ki roto i te paru hei pupuhi i te hau, kia piri ōrite ai te paru ki te tauira pahuka waro. Kātahi, mā te whakamaroke me te whakamahana i te pāmahana teitei, ka tangohia te tauira waro, ā, ka puta he uku porous.
Ko te ngoikoretanga nui o tēnei tikanga ko te kore e taea te whakaputa hua porowhita iti-pūwero. He iti te āhua, ā, he nui te pānga o ngā rauemi mata ki te mahi a te tauira. He uaua hoki te whakahaere i te mātotoru me te kaha o ngā rauemi uku porowhita kua whakaritea.
2.2 Te Tikanga Tāpiri i ngā Āhua Hanga-Pore
Ko te whakarite i ngā uku silicon carbide porous mā te tāpiri i ngā kaihoko hanga-pore ko te tāpiri i ngā kaihoko hanga-pore ki te paura silicon carbide, ki ngā matū rānei i mua, kātahi ka tangohia ngā kaihoko hanga-pore mā roto i ngā tukanga e whai ake nei. Nō reira, ko ngā tūranga i nohoia e ngā kaihoko hanga-pore i te tīmatanga ka hanga pore, kātahi ka whakamahanahia me te whakaeneene hei hanga uku porous. Nō reira, mā te whakarerekē i te momo me te horopeta o ngā kaihoko hanga-pore ka taea te whakahaere ngāwari i te porousity, te āhua o ngā pore, te rahi o ngā pore me te tohatoha o ngā uku porous kua oti. He tino whānui ngā momo kaihoko hanga-pore, tae atu ki ngā polymer waro tūturu, hangai rānei, ngā wai, ngā tote, ngā uku, ētahi atu paura rānei, me ētahi atu. He rerekē ngā tukanga tango o ngā kaihoko hanga-pore rerekē. Ko ngā kaihoko hanga-pore polymer waro ka tangohia i te nuinga o te wā mā te whakamahana me te pirau, ka taea te tango i ngā kaihoko hanga-pore wai mā te whakatiotanga me te whakangawari, ka taea te tango i ngā tote mā te tātari wai, ā, ka taea te tango i ngā paura uku mā te tātari otinga tika.
2.3 Tikanga Tauira Koiora
He rerekē rawa te hanganga pūwero moroiti i roto i ngā rauemi koiora i ērā o ngā rauemi hangai. Nā tōna hanganga ahurei, kua arohia whānuitia te whakarite rauemi uku pūwero me ngā hanganga rite mā te whakamahi i ngā rauropi hei tauira [10]. He rite tonu te tikanga tauira koiora me te tikanga whakakī pahuka waro. Ko te tikanga whakakī pahuka waro e whakamahi ana i te hautai horihori hei tauira, ko te tikanga tauira koiora e whakamahi ana i ngā rauropi taiao hei tauira.
Ko ngā painga o te tikanga tauira koiora mō te whakarite i ngā uku silicon carbide porous he māmā te tukanga me te iti o te utu. Ka taea te whakaputa i ngā uku he uaua ngā āhua, ā, ka taea te tārua i te hanganga o ngā rauemi koiora taiao ki te whānuitanga nui. Heoi, he ngāwari te pakaru o te tauira koiora i te wā o te tukanga waro pāmahana-tiketike, he pānga nui tēnei ki ngā āhuatanga hangarau o ngā uku silicon carbide porous. Heoi anō, ko te hanganga pore o ngā uku silicon carbide porous kua whakaritea e whakawhirinaki ana ki te hanganga moroiti o te tauira koiora tonu, ā, he ngoikore tōna hoahoa. Hei tāpiri, he ngoikoretanga anō hoki o tēnei tikanga, pērā i te iti o te whai huatanga o te hurihanga o te SiC, te ngawari o te whakaheke i te paparanga tauhohenga SiC, me te roa o te huringa whakarite.
Wā tuku: Hurae-22-2025