He rerekē te nui o te waro i roto i ia whati tauira kua whakatōngia, me te nui o te waro o te A-2.5 awt.% i roto i tēnei awhe, e hanga ana i tētahi rauemi matotoru me te kore rawa he pūwero, he mea tito mai i ngā matūriki silicon carbide kua tohatohahia ōrite me te silicon kore utu. I te pikinga ake o te tāpiri waro, ka piki haere te nui o te silicon carbide kua whakatōngia i roto i te tauhohenga, ka piki ake te rahi o te matūriki o te silicon carbide, ā, ka honoa te silicon carbide ki a rātou anō i roto i te āhua angaanga. Heoi, mā te nui rawa o te waro ka taea te arahi ngāwari ki te waro toenga i roto i te tinana kua whakatōngia. Ina whakanuia ake te pango waro ki te 3a, kāore i oti te whakatōngia o te tauira, ā, ka puta mai ngā "paparanga" pango ki roto.
Ina tauhohe te waro ki te silicon rewa, ko tōna tere whakawhānui rōrahi he 234%, ā, e hangai tata ana te hanganga moroiti o te silicon carbide i whakamātauhia ki te ihirangi waro i roto i te pereki. Ina iti te ihirangi waro i roto i te pereki, kāore e ranea te silicon carbide i hangaia e te tauhohenga silicon-waro ki te whakakī i ngā pūwero huri noa i te paura waro, ka hua ake he nui te silicon kore utu i roto i te tauira. I te pikinga ake o te ihirangi waro i roto i te pereki, ka taea e te silicon carbide i whakamātauhia ki te whakakī katoa i ngā pūwero huri noa i te paura waro me te hono i te silicon carbide taketake. I tēnei wā, ka heke te ihirangi o te silicon kore utu i roto i te tauira, ā, ka piki ake te mātotoru o te tinana whakamātauhia. Heoi, ina nui ake te waro i roto i te pereki, ka tere te karapoti o te silicon carbide tuarua i hangaia e te tauhohenga i waenga i te waro me te silicon i te toner, ka uaua ai te whakapā atu o te silicon rewa ki te toner, ka hua ake he waro toenga i roto i te tinana whakamātauhia.
E ai ki ngā hua o te XRD, ko te hanganga āhua o te sic i whakakāhia ki te tauhohenga ko α-SiC, β-SiC me te silicon kore utu.
I roto i te tukanga o te tauhohenga pāmahana teitei, ka heke ngā ngota waro ki te āhua tīmatanga i runga i te mata SiC β-SiC mā te hanganga tuarua o te silicon α-tuarua. Nā te mea he tauhohenga werawera noa te tauhohenga silicon-waro me te nui o te wera tauhohenga, mā te whakamatao tere i muri i te wā poto o te tauhohenga pāmahana teitei ka whakanui ake i te whakakī o te waro i rewa i roto i te silicon wai, kia puta ai ngā matūriki β-SiC hei waro, ā, ka whakapai ake i ngā āhuatanga hangarau o te rauemi. Nō reira, he pai te whakamahine i te kōpura β-SiC tuarua hei whakapai ake i te kaha piko. I roto i te pūnaha hiato Si-SiC, ka heke te nui o te silicon kore utu i roto i te rauemi me te pikinga o te nui o te waro i roto i te rauemi mata.
Whakatau:
(1) Ka piki ake te matotoru o te parai whakapūmau tauhohe kua whakaritea me te pikinga ake o te nui o te pango waro; He kawakore te uara pH, ā, ka piki haere haere.
(2) I te pikinga ake o te ihirangi waro i roto i te tinana, ka piki ake te mātotoru me te kaha piko o ngā uku i whakatōkia ki te tauhohenga i hangaia mā te tikanga pēhi i te tuatahi, kātahi ka heke iho. Ina 2.5 ngā wā o te nui o te pango waro i te nui tuatahi, ka tino teitei te kaha piko-toru me te mātotoru papatipu o te papa matomato i muri i te whakatōkia tauhohenga, arā, 227.5mpa me 3.093g/cm3, ia.
(3) Ina nui rawa te waro e whakakorikoria ana ki te tinana, ka puta ngā kapiti me ngā wāhi "hanawiti" mangu ki roto i te tinana. Ko te take o te kapiti he uaua ki te tuku i te hau waikura silicon i hangaia i roto i te tukanga whakakorikori tauhohenga, ka piki haere te pēhanga, ā, ko tōna pānga whakakorikori ka arahi ki te kapiti o te papa. I roto i te wāhi "hanawiti" mangu i roto i te whakakorikori, he nui te waro kāore e uru ki te tauhohenga.
Te wā tuku: Hōngongoi-10-2023