I ahu mai ngā pōro uku i ngā paura uku matatau pērā i te alumina (Al₂O₃), te zirconia (ZrO₂), te silicon nitride (Si₃N₄), me te silicon carbide (SiC). Ko ēnei rauemi mata, i ahu mai i ngā matūriki tino pai, ka tukuna ki ngā tukanga whakarewa paura: i konatunatua ki ngā mea here, ka hangaia hei porowhita porowhita mā te pēhi isostatic, te werohanga rānei. Kātahi ka whakakorikoria ngā porowhita ki te 1,400–2,200°C hei hanga i ngā hanganga matotoru, ōrite. Mā te whakakorikori, te huri tika me te whakakanapa i muri i te whakakorikori ka whakakorikoria kia tae ki ngā taunga taumata-micron.

He maha ngā whakamahinga o ngā pōro uku nā te mea he pakeke rawa, he ātete hoki ki te waikura. I roto i ngā peera, ka whakaitihia e rātou te waku i roto i ngā mīhini tere-rahi pērā i ngā waka hiko me ngā wiri niho, ka whakarei ake i te pai o te mahi. Mō ngā takirere me ngā papu, ka ātete ngā rauemi pērā i te silicon nitride ki ngā matū kino i roto i ngā ahumahi hinu me te rongoā, kia roa ai te ora. I roto i te hanga semiconductor, ka horoia e ngā pōro uku kore-arataki ngā wāhanga tairongo me te kore e poke. Ka mahi anō hoki rātou hei pāpāho whakakoi i roto i te whakakanapa tika mō ngā wāhanga rererangi, ngā whakapaipai rānei, ka puta he mutunga maeneene.