Tātari ngota

He mea mimiti totoka te tātari ngota e taea ai te wehewehe i ngā ngota o ngā rahi rerekē. He SiO2, Al203 hei silicate konumohe tioata me te wāhanga matua. He maha ngā kōhao o tētahi rahi i roto i tōna tioata, ā, he maha ngā kōhao o te diameter kotahi i waenganui i a rātou. Ka taea e ia te mimiti i ngā ngota iti iho i te diameter o te pore ki roto o te kōhao, ā, ka taea te tango i ngā ngota nui atu i te kōhao ki waho, ka mahi hei tātari.

He kaha te mimiti makuku o te tātari ngota, ā, tata ki ngā whakarewa katoa ka taea te whakamahi hei whakamaroke, nō reira he whānui te whakamahinga i roto i te taiwhanga me te ahumahi. Ko te tikanga mimiti tātari ngota he tikanga whakamaroke, he iti te whakapaunga pūngao, he nui te whai huatanga, he māmā te tukanga, he pai ake mō te whakamaroke hohonu o te wai me te hau, mā te whakamahi i te rahi o te kōhao tātari ngota ka kōwhiria te mimiti wai, kia taea ai te wehe.

He pai te pumau o te pāmahana o te tātari ngota, ka taea te tu atu i te pāmahana poto teitei o te 600C ~ 700C, ā, kaua te pāmahana whakaora e neke ake i te 600C, ki te kore ka pā ki te mahi a te tātari ngota, ā, ka taea te tango atu (kāore e hiahiatia he whakaora wera). Kāore te tātari ngota e wairewa ki te wai, engari ka rewa ki ngā waikawa kaha me te kawakore, nō reira ka taea te whakamahi i roto i te reo pH 5 ~ 11. He ngāwari te mimiti i te wai o te tātari ngota, me hiri te rokiroki, me tirotiro mēnā he nui ake te nui o te wai i te paerewa, he roa te rokiroki ka mimiti i te makuku, me whakamahi i muri i te whakamahinga, ā, kāore e rerekē te mahi. Ko ngā āhuatanga o te tātari ngota ko te tere mimiti tere, he maha ngā wā whakaora, he ātete ki te kuru me te kakahu, he ātete kaha ki te parahanga, he pai te whakamahinga, he roa te ora ratonga, ā, koinei te mea pai mō te whakamaroke hohonu o te hau me te wai.