Karāhe silicon honohono tauhohengangā oko whakarewaHe putanga hou tēnei i roto i te hangarau ātete ahi, e tuku ana i te mahi tino pai i roto i ngā taiao wera nui. Kua noho ēnei ipu uku matatau hei mea nui puta noa i ngā ahumahi whakarewa, whakarewa tika, miihini, me te tukatuka matū, e tuku ana i te mahi tino pai ki ngā wāhi kāore e taea e ngā rauemi tuku iho te mahi.
Ngā Painga Hangarau Matua
Ka pai ake te mahi a ngā oko whakarewa RBSC i ngā hoa alumina me te karāhe tuku iho mā roto i:
- He kawe wera tino pai (120–150 W/m·K i te 1000°C)
- Tauwehenga whakawhanui wera tino iti (4.5×10⁻⁶/K)
- Ātete ki te ru wera me te tu atu i ngā huringa whakamatao tere 50+ (1600°C→25°C)
- Ātete ki te waikura waikawa/kawakore (pH 0–14 hototahi)
- Te pumau o te waikura i te hau tae atu ki te 1650°C
Te Tohungatanga Whakarewa
I roto i te hanga maitai koranu me te whakarewa konganuku kore-ferrous (konumohe, parahi, konutea), ka taea e ngā oko RBSC te:
- 20–30% te tere ake o ngā tere rewa mā te whakawhiti wera kua arotauhia
- Te pupuri i te parakore o te konganuku 99.95% mā roto i ngā mata kore-tauhohe
- Te whakaiti i te hanganga para mā te whakaiti i te whakarōpūtanga wera
- Te roa o te ora ratonga (3–5× te roa atu i ngā oko uku-karapiti)
Te Maka Tika me ngā Whakamahinga Mīhini
Ka tautokohia e ngā āhuatanga hangarau ahurei o ngā ipu whakarewa ngā whakaritenga ahumahi uaua:
- Te pumau o te hanganga i raro i te ahotea ā-ringa 15–20 MPa
- Te pumau o ngā āhuatanga (±0.1% te panonitanga rōrahi i te 1500°C)
- Tukatuka kore-parahanga mō ngā wāhanga ā-rangi
- Mahi pono i roto i ngā pūnaha whakarewanga tohanga
Te Hiranga o te Tukatuka Matū
Ka aro atu ngā oko RBSC ki ngā wero nui o te hanganga matū:
- Te pupuri haumaru i ngā tote rewa (hei tauira, NaOH, KNO₃)
- Te mahi pumau i roto i ngā tauhohenga sulfidation/chlorination
- Ātete waikura ki te HF tae atu ki te 800°C
- Te tiaki i te parakore i roto i te tangohanga huānga whenua onge
Ōhanga Whakahaere
Ahakoa he 40–60% teitei ake ngā utu tīmatanga i ngā ipu para tuku iho, ko ngā otinga RBSC e whakarato ana i:
- 70% te whakaiti i te auau whakakapinga
- 25–35% ngā penapena pūngao mā te whakapai ake i te whai huatanga o te wera
- 90% te āheinga ki te hangarua i ngā rauemi mā te whakaora wera
- Ngā whakaritenga tiaki tata kore
Ngā Auahatanga Motuhake-Ahumahi
1. Te Hanganga o te Titanium Alloy
- Ka ātete ki te rewa o te Ti tauhohe i te 1700°C
- Ārai i te poke o te kohikohinga waro
2. Te Hanga Rauemi Pūhiko
- Ka taea te tukatuka katote LiCoO₂ ōrite
- Ātete ki te waikura tote lithium
3. Te Tiputanga o te Tioata Ā-Haumaru
- Ka mau tonu te hototahitanga tino-tiketike ki te korehau
- Ka whakakore i te poke o te silicon carbide
Hoahoa Whakamua-Ā-Mō-te-Mārama
Kei roto i ngā ipu whakarewa RBSC hou ngā āhuatanga matatau:
- Ngā hanganga porosity rītaha mō te uruhanga hau e whakahaeretia ana
- Ngā paninga mata nanoscale e whakarei ake ana i te ātete ki te paru
- Ngā pūoko wera kua whakauruhia mō te aroturuki tukanga
Mai i te rangahau ā-taiwhanga ki te whakaputa papatipu ahumahi, kei te whakahou tonu ngā oko whakarewa silicon carbide e honoa ana ki te tauhohenga i ngā āheinga tukatuka wera. Nā te huinga ahurei o ngā āhuatanga wera, miihini, me te matū, ka waiho rātou hei oko whakarewa pai mō ngā tono pāmahana teitei o te whakatipuranga e whai ake nei, e akiaki ana i te pai me te kounga o ngā whakapainga puta noa i ngā rāngai hanga matatau maha.
Wā tuku: Maehe-20-2025