1. Te ahotea wera i te wā e whakamatao ana (Te take matua)
Ka puta te ahotea i raro i ngā āhuatanga pāmahana kāore i te ōrite. I tētahi pāmahana, ka eke te hanganga ngota o te ngota kua whakaranua ki tētahi whirihoranga ā-wāhi "tino pai". I te huringa o te pāmahana, ka neke te mokowā ngota - he āhuatanga e kiia ana ko te whakawhānui wera. Ina werahia, ina whakamataohia rānei te ngota kua whakaranua kia kore e ōrite, ka puta te whakawhānui kore ōrite.
I te nuinga o te wā ka puta te ahotea wera ina ngana ngā rohe wera ki te whakawhanui engari ka herea e ngā rohe matao e karapoti ana. Ka puta he ahotea pēhi, kāore e kino. Mena he teitei te pāmahana hei whakangawari i te karāhe, ka taea te whakaiti i te ahotea. Heoi, ki te tere rawa te tere whakamatao, ka tere te piki o te matotoru, ā, kāore e taea e te hanganga ngota o roto te whakarerekē i te wā ki te pāmahana e heke ana. Ka hua ake he ahotea kume, he nui ake te tūponotanga ka pakaru, ka hinga rānei.
Ka kaha ake te taumahatanga i te hekenga o te pāmahana, ka tae ki ngā taumata tiketike i te mutunga o te tukanga whakamatao. Ko te pāmahana e eke ai te karāhe quartz ki te matotoru neke atu i te 10^4.6 te poise e kiia ana ko tepūwāhi taumahatangaI tēnei wā, he tino tiketike te matotoru o te rauemi, ā, ka mau tonu te ahotea o roto, ā, kāore e taea te memeha atu.
2. Te ahotea mai i te Whakawhiti Wāhanga me te Whakangāwari Hanganga
Te Whakangāwari Hanganga Metastatic:
I roto i te āhua rewa, he tino koretake te whakaritenga ngota o te quartz kua whakaranua. Ina whakamatao, ka whakangāwari ngā ngota ki te āhua pumau ake. Heoi, ko te matotoru nui o te āhua karāhe ka aukati i te nekehanga ngota, ka hua ake he hanganga ā-roto pumau, ka puta he ahotea whakangāwari. I roto i te wā, ka tukuna mārire pea tēnei ahotea, he āhuatanga e mōhiotia ana kote koroheketanga o te karaihe.
Te Āhuatanga Whakatioata:
Mena ka puritia te kuata kua whakaranua i roto i ētahi awhe pāmahana (pērā i te tata ki te pāmahana whakatioata) mō ngā wā roa, ka puta pea te whakatioata moroiti—hei tauira, te maturuturunga iho o ngā tioata moroiti cristobalite. Ko te kore taurite o te rōrahi i waenga i ngā āhua tioata me ngā āhua kore-āhua ka putaahotea whakawhiti wāhanga.
3. Te Utaina Ā-Mīhini me te Kaha o Waho
1. Te ahotea mai i te tukatuka:
Mā ngā kaha ā-ringa e whakamahia ana i te wā e tapahi ana, e huri ana, e whakakanapa ana rānei, ka puta te whakapōturi o te mata o te whatu me te ahotea tukatuka. Hei tauira, i te wā e tapahi ana me te wira huri, ka puta te kukū ahotea i te wera ā-rohe me te pēhanga ā-ringa i te taha. Mā ngā tikanga hē i te keri, i te kōhao rānei, ka hua ake he kukū ahotea i ngā kōhao, ka mahi hei pūwāhi tīmatanga o te kapiti.
2. Te ahotea mai i ngā āhuatanga o te ratonga:
Ina whakamahia hei rauemi hanganga, ka pāngia te kuata hanumi e te ahotea whānui nā runga i ngā kawenga ā-ringa pēnei i te pēhanga, te piko rānei. Hei tauira, ka pāngia pea ngā oko karāhe kuata e te ahotea piko ina pupurihia ngā mea taumaha.
4. Te Ru Wera me te Hurihuri Tere o te Pāmahana
1. Te ahotea ohorere mai i te whakamahana/whakamatao tere:
Ahakoa he iti rawa te tauwehenga whānui wera o te kuata kua hanumi (~0.5×10⁻⁶/°C), ka taea tonu e ngā huringa pāmahana tere (hei tauira, te whakamahana mai i te pāmahana rūma ki ngā pāmahana teitei, te rumakina rānei ki te wai hukapapa) te whakaputa i ngā pikinga pāmahana ā-rohe. Ka hua ake i ēnei pikinga te whānui ohorere, te whakahekenga rānei o te wera, ka puta he ahotea wera inamata. Ko tētahi tauira noa ko te pakaru o ngā oko kuata taiwhanga nā te ru wera.
2. Te Ngenge Wera Hurihuri:
Ina pāngia e ngā piki me ngā heke o te pāmahana mō te wā roa—pērā i roto i ngā arai oumu, i ngā matapihi tirotiro pāmahana teitei rānei—ka horapa, ka whakawhāiti hoki te kuata kua whakaranua. Ka hua ake tēnei i te kohikohinga o te ahotea ngenge, te tere o te koroheketanga me te mōrearea o te pakaru.
5. Te ahotea i puta mai i te matū
1. Te ahotea o te waikura me te memeha:
Ina pā te quartz hanumi ki ngā wairewa kawakore kaha (hei tauira, NaOH) me ngā hau waikawa pāmahana teitei (hei tauira, HF), ka puta te waikura me te memeha o te mata. Ka whakararuraru tēnei i te hanganga ōrite, ā, ka puta te ahotea matū. Hei tauira, ka taea e te waikura kawakore te arahi ki ngā huringa rōrahi o te mata, ki te hanganga rānei o ngā kapiti moroiti.
2. Te ahotea i puta mai i te CVD:
Ka taea e ngā tukanga Whakatakotoranga Kohu Matū (CVD) e whakatakoto ana i ngā paninga (hei tauira, te SiC) ki runga i te quartz kua hanumi te whakauru i te ahotea ā-mata nā te rerekētanga o ngā tauwehenga whānui wera, ngā moduli ngāwari rānei i waenga i ngā rauemi e rua. I te wā whakamatao, ka taea e tēnei ahotea te wehewehe, te ngatata rānei o te paninga, o te papa rānei.
6. Ngā Koha me ngā Parakore o roto
1. Ngā Mirumiru me ngā Whakaurunga:
Ko ngā mirumiru hau, ngā poke rānei e toe ana (hei tauira, ngā katote whakarewa, ngā matūriki kāore anō kia rewa) e whakaurua ana i te wā e rewa ana ka mahi hei kaiwhakakotahi ahotea. Ko ngā rerekētanga o te whānui wera, te ngāwari rānei i waenga i ēnei whakaurunga me te anga karāhe ka hanga i te ahotea ā-roto ā-rohe. He maha ngā wā ka tīmata ngā pakaru i ngā taha o ēnei hapa.
2. Ngā pakaru iti me ngā hapa hanganga:
Ka hua ake pea ngā pakaru iti o roto i ngā poke, i ngā hapa rānei o te rauemi mata, mai i te tukanga rewa rānei. I raro i ngā kawenga ā-mīhini, i te huringa wera rānei, ka taea e te kukū o te ahotea ki ngā pito o te pakaru te whakatairanga i te horapa o te pakaru, ka whakaiti i te pumau o te rauemi.
Wā tuku: Hōngongoi-04-2025