Ko te Fused Silica he rauemi mata pai mo te whakamahi i roto i te makanga haumi, refractories, foundries, ceramics hangarau, me etahi atu tono e hiahia ana kia rite, hua parakore tiketike ki te roha waiariki tino iti.
Hangahanga matū | Koeke Tuatahi | Tikanga | Koeke Tuarua | Tikanga |
SiO2 | 99.9%min | 99.92 | 99.8%min | 99.84 |
Fe2O3 | 50ppm teitei | 19 | 80ppm teitei | 50 |
Al2O3 | 100ppm te teitei | 90 | 150ppm te teitei | 120 |
K2O | 30ppm teitei | 23 | 30ppm teitei | 25 |
Ko te Fused Silica he mea hanga mai i te silica parakore teitei, ma te whakamahi i te hangarau whakakotahi ahurei hei whakarite i te kounga teitei.Ko to tatou Fused Silica he neke atu i te 99% amorphous me te iti rawa o te whakarea o te roha waiariki me te atete nui ki te wiariki.Ko te Fused Silica he koretake, he pai te pumau matū, he iti rawa te kawe hiko.
He tino pai te waiariki me te matū o te quartz hei taonga mo te tipu o te karaihe kotahi mai i te whakarewatanga, a, ko te tino ma me te iti o te utu e tino ataahua ana mo te tipu o nga tioata parakore.Heoi, i te tipu o etahi momo tioata, Ko te paparanga o te whakakikorua waro pyrolytic e hiahiatia ana i waenga i te rewa me te parapara kiripaka.
He maha nga ahuatanga whakamiharo e pa ana ki te miihini, te waiariki, te matū me te mata:
• He pakari, he pakari hoki, kaore e tino uaua ki te miihini me te whakakoi.(Ka taea ano e tetahi te whakamahi i te miihini miihini laser.)
• Ko te nui o te pāmahana whakawhiti karaihe he uaua ake ki te rewa atu i etahi atu mohiti whatu, engari e tohu ana hoki ka taea te wera o te mahi.Heoi ano, ka whakaatu pea te hika karekau i te wetewete (te whakamaaatatanga o te rohe ki te ahua o te cristobalite) i runga ake i te 1100 °C, ina koa i raro i te awe o etahi para poke, a ka pahuatia nga taonga mata.
• He iti rawa te whakarea roha waiariki – tata ki te 0.5 · 10−6 K−1.He maha nga wa iti ake tenei i nga mohiti angamaheni.Ahakoa he ngoikore rawa te roha waiariki huri noa i te 10−8 K−1 ka taea me te ahua whakarerekētanga o te silica whakakotahi me etahi titanium dioxide, i whakauruhia e Corning [4] ka kiia ko te karaihe roha ultra iti.
• Ko te nui o te awangawanga o te waiariki he hua na te ngoikore o te roha wera;he iti noa te ahotea miihini ahakoa ka puta nga rōnaki teitei o te pāmahana na te tere o te whakamatao.
• Ko te Silica ka tino parakore te matū, i runga i te tikanga hanga (tirohia ki raro).
• He matū matū te Silica, hāunga te waikawa pūwaiwai me te wairewa kaha kawakore.I te teitei o te mahana, he ahua memeha ki te wai (he nui ake i te kiripaka tioata).
• He tino whanui te rohe marama (mo te 0.18 μm ki te 3 μm), ka taea te whakamahi i te silica fused ehara i te mea puta noa i te rohe tino kitea, engari i roto i te ultraviolet me te infrared.Heoi, ko nga rohe ka whakawhirinaki nui ki te kounga rauemi.Hei tauira, ko nga roopu whakauru infrared kaha ka puta mai i te ihirangi OH, me te urunga o UV mai i nga poke konganuku (tirohia i raro).
• Hei rauemi amorphous, ko te silica kua konatunatua he inerite matakite - he rereke ki te kiripaka tioata.Ko te tikanga tenei karekau he taaruarua, a ka taea te whakaatu i tana taupū whakarara (tirohia te Whakaahua 1) me te tauira Sellmeier kotahi.