Izinto zokuPolisha ngomlingo

  Kwihlabathi lokuvelisa ngokuchanekileyo kunye nokugqiba umphezulu,i-cerium oxideI-powder yokupolisha ivele njengento etshintsha umdlalo. Iimpawu zayo ezikhethekileyo zenza ukuba ibe yinxalenye ebalulekileyo kwiintlobo ngeentlobo zezicelo zokupolisha, ukusuka kwiindawo ezithambileyo zeelensi ze-optical ukuya kwii-wafers zobuchwepheshe obuphezulu kwimveliso ye-semiconductor.

  Indlela yokupolisha ye-cerium oxide yindibaniselwano enomdla yeenkqubo zeekhemikhali kunye nezoomatshini. Ngokwekhemikhali,i-cerium oxide (CEO₂) isebenzisa ithuba leemeko ze-valence eziguquguqukayo ze-cerium element. Xa kukho amanzi ngexesha lenkqubo yokupolisha, umphezulu wezinto ezifana neglasi (eyakhiwe kakhulu yi-silica, i-SiO2₂) iba yi-hydroxylated.CEO₂Emva koko iphendula kumphezulu we-silica ofakwe i-hydroxylated. Okokuqala yenza i-Ce-O-Si bond. Ngenxa yendalo ye-hydrolytic yomphezulu weglasi, oku kuguquka ngakumbi kube yi-Ce-O-Si(OH)₃ibhondi.

   Ngokwendlela yoomatshini, eqinileyo, ecolekileyoi-cerium oxideAmasuntswana asebenza njengezinto ezincinci ezirhabaxa. Asusa ngokwasemzimbeni iziphazamiso ezincinci kumphezulu wento. Njengoko i-polishing pad ihamba phezu komphezulu phantsi koxinzelelo,i-cerium oxideAmasuntswana ayasila phantsi kwiindawo eziphakamileyo, aze ngokuthe ngcembe awenze umphezulu ube mdaka. Amandla oomatshini nawo adlala indima ekuphukeni kwamaqhina e-Si-O-Si kwisakhiwo seglasi, okwenza kube lula ukususa izinto ngendlela yamaqhekeza amancinci.Enye yezinto eziphawulekayo zei-cerium oxideukupolisha bubuchule bayo bokuzilungisa – ukulungisa izinga lokupolisha. Xa umphezulu wezinto urhabaxa,i-cerium oxideAmasuntswana asusa izinto ngamandla ngesantya esiphezulu. Njengoko umphezulu uba bushelelezi, isantya sokupholisha sinokulungiswa, kwaye kwezinye iimeko, sifikelele kwimeko "yokuzimisa". Oku kungenxa yokusebenzisana phakathi kwe-cerium oxide, i-polishing pad, kunye nezongezo kwi-polishing slurry. Izongezo zinokutshintsha i-chemistry yomphezulu kunye nokunamathelana phakathi kwe-i-cerium oxideamasuntswana kunye nezinto, zilawula ngempumelelo inkqubo yokupolisha.