He tikanga nui te tauhohenga sintering silicon carbide hei whakaputa rauemi uku mahi teitei. Ka whakamahia e tēnei tikanga te maimoatanga wera o ngā pūtake waro me te silicon i ngā pāmahana teitei hei hanga i ngā uku silicon carbide.
1. Te Whakarite i ngā Rauemi Mata. Ko ngā rauemi mata o te karawiti silicon i whakapūtāhia ki te tauhohenga ko te pūtake waro me te pūtake silicon. Ko te pūtake waro he pango waro, he pūmua kei roto he waro, ko te pūtake silicon ia he paura silica. Me kuru, me tātari, me whakaranu ēnei rauemi mata kia ōrite te rahi o te matūriki, me te whakahaere anō hoki i te hanganga matū kia whiwhi ai i ngā uku karawiti silicon kounga teitei i te wā e whakamahanahia ana.
2. Hanga. Tāpirihia ngā rauemi mata kua whakaranua ki roto i te pokepokea ai hei hanga. He maha ngā momo tikanga hanga, ko te hanga pēhi me te hanga werohanga. Ko te hanga pēhi ko te pēhi i te paura rauemi mata i raro i te pēhanga kia hanga, ko te hanga werohanga ia ko te rauemi mata kua whakaranua ki te piripiri, ka rehuhia ki roto i te pokepokea ai mā te pūwero kia hanga. I muri i te hanga, me whakahaere te maimoatanga tangohanga hei tango i te pereki uku mai i te pokepokea ai.
3. Te whakamahana. Ka tukuna te tinana uku kua hangaia ki roto i te oumu whakamahana mō te whakawera. E rua ngā wāhanga o te tukanga whakawera: te wāhanga whakawaro me te wāhanga whakawera. I te wāhanga whakawaro, ka whakamahanahia te tinana uku ki te pāmahana teitei (neke atu i te 1600 °C) i raro i te hau kore mahi, ā, ka tauhohe te pūtake waro ki te pūtake silicon hei whakaputa i te silicon carbide. I te wāhanga whakawera, ka whakanuia te pāmahana ki te pāmahana teitei ake (neke atu i te 1900 °C), ka puta te whakakōkī anō me te whakakīkī i waenga i ngā matūriki silicon carbide. Mā tēnei, ka pai ake te matotoru o te tinana silicon carbide, ā, ka tino pai ake hoki te pakeke me te ātete ki te kakahu.
4. Te Whakaoti. Me whakaoti te tinana uku kua whakatōkia kia whiwhi ai i te āhua me te rahi e hiahiatia ana. Ko ngā tikanga whakaoti ko te huri, te tapahi, te keri, me ētahi atu. Nā te tino pakeke o te rauemi silicon carbide, he uaua ki te whakaoti, me te whakamahi i ngā taputapu huri me ngā taputapu tukatuka tino tika.
Hei whakarāpopototanga, ko te tukanga whakaputa o te silicon carbide kua whakapūtāhia ki te tauhohenga ko te whakarite i ngā rauemi mata, te whakahāngai, te maimoatanga wera me te whakaoti. I roto i ēnei, ko te taahiraa matua ko te tukanga maimoatanga wera, ko te whakahaere i tēnei he mea nui kia whiwhi rauemi silicon carbide kounga teitei. He mea tika kia whakahaerehia te pāmahana, te āhuarangi, te wā pupuri me ētahi atu āhuatanga o te maimoatanga wera kia tino tika ai te tauhohenga, kia oti te whakatiotanga, kia teitei ai te mātotoru.
Ko te painga o te tukanga whakaputa karāhe silicon i whakamātauhia ki te tauhohenga ko te taea te whakarite i ngā rauemi uku he pakeke teitei, he kaha teitei, he ātete ki te kakahu teitei, me te pumau pāmahana teitei. Ehara i te mea he tino pai ngā āhuatanga miihini o tēnei rauemi, engari he tino pai hoki te ātete ki te waikura me ngā āhuatanga pāmahana teitei. Ka taea te whakamahi i ngā rauemi karāhe silicon hei hanga i ngā wāhanga hangarau, ngā hiri miihini, ngā taputapu maimoatanga wera, ngā uku oumu me ētahi atu. I taua wā anō, ka taea hoki te whakamahi i ngā rauemi karāhe silicon i roto i te haurua-ā-ira, te pūngao o te rā, ngā rauemi aukume me ētahi atu mara.
I roto i te poto, he tikanga nui te whakamahi i te silicon carbide hei whakarite i ngā rauemi uku mahi teitei. Me whakahaere pai ia hononga i roto i te tukanga whakaputa kia whiwhi ai i ngā rauemi silicon carbide kounga teitei. He tino pai ngā āhuatanga miihini, te ātete ki te waikura me ngā āhuatanga pāmahana teitei o ngā rauemi silicon carbide kua whakamātauhia ki te tauhohenga, ā, he whānuitia ngā tono i roto i ngā mara ahumahi me ngā mara pūtaiao.
Te wā tuku: Hurae-21-2023