Answer
Oxide yumukara (MIL-DTL-13924) nigitambaro cyo guhindura gitanga isura yumukara hamwe no kurwanya ruswa iyo usize amavuta. Inyungu yibanze ni uko yongeramo hafi yubunini (0.1-0.2 μ m) kandi ntibitera kwinjiza hydrogène. Zinc Fosifate (MIL-DTL-16232) ni igipfunyika kiremereye gitanga uburinzi bwiza kandi bukora nk'amavuta. Nyamara, fosifate ikubiyemo gufata aside itangiza hydrogène, bikenera kuzenguruka. Ku mpeta zisobanutse neza zifite impuzu zifatika, Oxide yumukara ikunze guhitamo kugumana ubunyangamugayo, mugihe Zinc Phosphate ihitamo hanze cyangwa imirimo iremereye yinganda.