Paura Matotoru Kakariki Silicon Carbide: Te Pūngao mō te Whakapai Ake i te Mahi o ngā Paninga Ahumahi
I tēnei rā, kia kōrero takitahi tātou mō te mea e tino motuhake ai tēnei paura moroiti silicon carbide matomato.
I. Tuatahi, kia mārama tātou he aha te tikanga o tēnei "carbide silicon matomato".
I te rongonga tuatahi i te ingoa, he ahua "matū" me te hangarau teitei. Engari, he rite tonu ki te whanaunga o te alumina ma kua hanumi i kōrerohia e tātou i mua ake nei—no te whānau rauemi tino mārō ēnei e rua.
He rite tōna hanganga ki te hanga maitai: ka makahia ngā rauemi mata pēnei i te onepu kuata me te kōka hinu ki roto i te oumu ātete hiko, ā, ka "whakapaipaihia" i ngā pāmahana neke atu i te 2000 nekehanga Celsius. Nā te mea kei roto he huānga motuhake, ka whakakōkī hei tae kakariki ahurei, koia te ingoa "carbide silicon matomato."
Ko ngā āhuatanga matua o tēnei kaupapa e rua ngā kupu: mārō, me te koi.
He aha te uaua? I runga i te tauine Mohs, ko tōna tere he 9.2–9.5! He aha te tikanga o tēnā? Ko tōna tuarua anake i te taimana (10) ā, he nui ake tōna pakeke i ngā konganuku noa, te karāhe, me te māpere. Heoi anō, he koi ngā taha me ngā kokonga o ōna matūriki, he rerekē ki ētahi whakakī porowhita he maeneene, he porowhita.
Whakaarohia he piriona ngā "kōnae taimana" iti, tino mārō. Ki a mātou i roto i te umanga paninga, ko te tāpiri atu ki tētahi paninga he rite ki te hoatu i tētahi paparanga kore e kitea o te "pūeru mekameka".
II. Me pēhea te "whakakaha" i ngā paninga?
He āhua papaku noa iho te whakanui i tōna pakeke. Ko tōna uara tūturu kei te whakarei ake i te mahi paninga—koinei te wāhi e puta ai te makutu tūturu.
Ko te mea tuatahi—ko tōna āhuatanga motuhake—he ātete ki te mura me te rakuraku.
He māmā noa iho tēnei ki te mārama. Whakaarohia te mata o tō paninga kua whakauruhia ki roto i ngā matūriki tino mārō, koi rawa. Ina waruhia, ina huri rānei tetahi mea ki a ia, ka hangaia e ēnei pito mārō te "rārangi parepare tuatahi." Me wikitoria tuatahitia e ngā kaha o waho i mua i te taenga atu ki te turanga kapia ngohengohe i raro.
He rite ki te hikoi i runga i te paru ngohengohe—he tapuwae hohonu kei ia hikoinga. Engari i runga i te ara kua wharikihia ki ngā kohatu mārō, kāore e toe he tohu. E whakaatu ana ā mātou whakamātautau ka taea e ngā paninga papa epoxy me te tauira kotahi engari kei roto te nui tika o te paura silicon carbide matomato te whakaneke rua, te whakaneke toru rānei i tōna roa ina whakamatautauria ki te whakamātautau pakū! Mō ngā wāhi pēnei i ngā awheawhe wheketere, ngā papa waka, me ngā whare putunga nui, he mea tino nui tēnei mahi.
Ko te painga tuarua ko te whakapiki ake i te piri, e āhei ai te paninga kia "piri" kaha ake.
Tērā pea ka miharo te hunga o waho ki tēnei painga. Kāore ēnei matūriki paura iti e rere noa i roto i te paninga—ka hangaia he hanganga "mekameka punga" moroiti. I tētahi taha, ka hono pai ō rātou mata taratara ki te kapia. I tētahi atu taha, ina whakamahia ki ngā papa pēnei i te maitai, i te raima rānei, ka uru ēnei matūriki mārō ki roto i ngā āhua moroiti koretake, ka hangaia he kaha honohono ā-mīhini.
Hei whakarāpopototanga: he rite ngā paninga noa ki te whakapiri i te kāpia hei whakapiri i tētahi pepa maeneene ki te pakitara. Heoi, ko ngā paninga me te silicon carbide matomato he rite ki te whakakorikori i te mata o te pakitara i te tuatahi, kātahi ka whakapirihia ki ngā here matau-me-te-koropiko. Kāore e taea te whakataurite i te taumata piri. He mea nui tēnei hei ārai i te kiriuhi me te pakarukaru o te paninga.
Painga tuatoru: Te ātete paheke pai ake, te whakatairanga i te haumaru.
Ahakoa he papa wheketere, he papa kaipuke, he piriti hikoi rānei, he mea tino nui te ātete paheke. Ka tohatoha ōritetia ngā matūriki paura silicon carbide matomato puta noa i te mata paninga, ka hanga he putunga iti, mārō e whakanui ana i te taratara o te mata, e whakarei ake ana hoki i te tauwehenga o te waku.
Ka noho haumaru ngā kaimahi e mau ana i ngā pūtu haumaru ki runga i a rātou e hikoi ana; kāore e paheke ngā kaihaerere i ngā rā ua. He mea utu nui te whakapumautanga haumaru e whakaratohia ana e tēnei.
Tuawhā, he maha ngā mahi e taea ana, e ātete ana ki te pāmahana me te waikura hoki.
He tino pumau ngā āhuatanga matū o te karawiti silicon matomato, e ātete ana ki ngā waikawa, ki ngā kawakore, ki te waikura, ā, e tino pai ana i roto i ngā taiao pāmahana teitei. Mā te whakauru ki roto i ngā paninga ka whakawhiti pai i ēnei "āhuatanga" papai. Mō ngā taputapu i roto i ngā tipu matū, i ngā paipa pāmahana teitei rānei, ka ara ake te pakari o te paninga ki tētahi taumata hou.
III. Ahakoa he taputapu pai, me whai pūkenga: Te Toi o te Whakamahinga
Ae, ko te pai o te taputapu koi ko te kaiwhakamahi anake—kāore e taea te whakamahi matapo noa. He nui ngā āhuatanga rerekē kei roto.
Tuatahi, he mahi toi te whiriwhiri i te rahi matūriki tika. Ko te paura silicon carbide matomato kei waenga i ngā rau ki ngā mano o ngā mata. Ki te whakamahi koe i tētahi momo matotoru rawa—hei tauira, 100 mata, neke atu rānei—ka ahua taratara te mata o te paninga ki te pā, ka pā ki te ataahua. I tetahi atu taha, ko te whakamahi i tētahi momo matotoru rawa—pērā i te 3,000 ki te 5,000 mata—ka whakanui ake i te kaha me te pakeke engari ka whakaiti i te ātete paheke. Nō reira, me rite te whiriwhiri ki tō whāinga whakamutunga: mō ngā papa, he nui ake te momo matotoru; mō ngā paninga ahumahi kounga teitei, he pai ake pea te momo matotoru hei whakanui ake i te ātete kakahu me te kore e whakararu i te whakataurite.
Tuarua, he mea nui te whakahaere tika i te nui o te tāpiri. Ehara i te mea he pai ake te nui ake. He tino teitei te taumaha motuhake o ēnei matūriki, ā, ka taea e te nui rawa te whakatō. Mēnā ka roa rawa te noho o te paninga, ka wehea—he hinu mārama kei runga, he kirikiri kei raro—ā, kāore e whai hua. Heoi anō, ko te nui rawa o te tāpiri ka pā kino ki te whakataurite me te kanapa o te paninga, ā, ka hua ake pea he kiri karaka kino ki te mata i rehuhia. I te nuinga o te wā ka kitea e tātou te taurite pai i waenga i te mahi, te ngāwari o te mahi, me te utu mā te whakamātautau tonu.
Hei whakamutunga, ko te marara te mea nui rawa atu. He kaha ngā kaha o te van der Waals o ēnei matūriki angiangi, ka whakaemi haere. Ki te kore e marara tika, ka hanga he puranga i roto i te paninga. Ehara i te mea ka kore noa iho ēnei puranga e whai hua, engari ka hangaia hoki he pūwāhi ahotea e whakaiti ana i te mahi paninga. Nō reira, me whakamahi te kaiwhakarara tika me ngā taputapu marara kaha-teitei kia tino kapi katoa ngā matūriki iti e te para kapia. Ko reira anake ka taea ai te whakatutuki i tōna pūmanawa katoa.