Ngā arai uku silicon carbide

Arai ātete-mau o te silicon carbide

Ngā Āhuatanga Hoahoa o ngā Raina Ātete-Kakahu Silicon Carbide (SiC):

（1）Hoahoa Ara Rere Whakangāwari

Mā te āhua maeneene, ātaahua hoki mai i te tomokanga ki te putanga ka whakaitihia te ātete rere, ka taea ai ngā raina SiC te urutau ki ngā tono ahumahi kanorau.

（2）Te Whakakotahitanga Matatau

TikangaKa whakakorikoria ngā wai kia rite ki ngā pata angiangi mā roto i ngā tukinga pātata ki ngā mata porowhita e whaiti haere ana o te raina SiC, kia rite ai te tohatoha o te rehu.

（3）Hanganga Kiato, Kore-Pūngāwerewere

Ka whakakorea ngā aukati o roto e te hongere rere tika, kore-matua, ka whakanuia te rere o te wai i roto i ngā rahi paipa kuiti, me te ārai hoki i ngā aukati.

（4）Aratau Rehu Takirua mō te Whakapai Ake i te Whai Hua

E tautoko ana i ngā tauira rehu kōne totoka me ngā kōne tuwhera, e whakarato ana i ngā koki hipoki whānui me te mahi ārai-aukati mō ngā mahi tino whai hua.

Ngā painga matua ki te whakataurite ki ētahi atu rauemi:

（1）Te Ātete ki te Maukati Kāore i te ōrite

Pakeke: Ka eke ngā arai SiC ki te pakeke Mohs o te 9.5 (vs. 8.0 mō ngā uku alumina, 6.0 mō te maitai konupora-teitei), ā, ka taea e rātou te tu atu i te kakahu tino koi i roto i ngā paru keri, te pungarehu waro, me ngā paura whakarewa.

Te Roa o te Ora: Neke atu i te 5–10× te roa o te ora o ngā rauemi tuku iho (hei tauira, ngā rapa, ngā raina polyurethane rānei) i roto i ngā tono pānga nui pēnei i ngā mira pōro, i ngā papu paru rānei.

（2）Te Waikura me te Āhua Matūkore

Ātete ki te Waikawa/Kawakawa: Ka ātete ki te waikawa whanariki kukū (98%), te hauwai konutai (50%), me ngā tote rewa (hei tauira, NaCl-KCl i te 800°C), engari ka tere te waikura o ngā konganuku, ka pirau hoki ngā pūmua.

Kore Parahanga： Mā te mata kore-tauhohe ka whakarite kia parakore te hanga o te pākahiko semiconductor, te pākahiko lithium rānei, he rerekē ki ngā arai rino e ngawari ana ki te tango i te katote.

(3) Te Pūmautanga o te Pāmahana Tino Nui

Ātete Wera: Mahi tonu i te 1,600°C (ki te rohenga 1,200°C o te alumina) me te iti o te whānui wera (CTE: 4.0×10⁻⁶/℃), ka ārai i te pakaru i roto i ngā oumu whakarewa, i ngā oumu whakarewa rānei.

Ātete ki te Ru Wera: Ka mau tonu te pumau o te hanganga i raro i ngā huringa tere o te pāmahana (hei tauira, te tinei mai i te 1,000°C ki te pāmahana rūma), he rerekē ki ngā uku pakarukaru.

(4) Te Whai Hua o te Pūngao me te Hoahoa Mama

Te Waku Iti: Ka whakaitihia e te mata SiC kua orohia (Ra <0.1 μm) te ātete wai mā te 30–50% ki te whakataurite ki ngā raina maitai taratara, ka tapahia ngā utu pūngao papu.

Penapena Taumaha：Ko te kiato o te 3.1 karamu/cm³ (ki te 7.8 karamu/cm³ o te maitai) ka māmā ake te tāutanga me te tautoko i ngā taputapu mama i roto i ngā waeine tukatuka rererangi, i ngā waeine tukatuka pūkoro rānei.

Ko Shandong Zhongpeng Special Ceramics Co., Ltd tētahi o ngā otinga rauemi hou uku silicon carbide nui rawa atu i Haina. Uku hangarau SiC: Ko te pakeke o Moh he 9 (ko te pakeke o Moh hou he 13), he ātete pai ki te horo me te waikura, he ātete pai ki te pakū me te ārai-waikura. Ko te roa o te ora ratonga o te hua SiC he 4 ki te 5 ngā wā roa atu i te rauemi alumina 92%. Ko te MOR o RBSiC he 5 ki te 7 ngā wā i tō SNBSC, ka taea te whakamahi mō ngā āhua uaua ake. He tere te tukanga whakatau utu, ko te tuku e rite ana ki te mea i oatitia, ā, ko te kounga kāore he rite. Ka tohe tonu mātou ki te wero i ā mātou whāinga me te tuku i ō mātou ngākau ki te hapori.