He mōʻaukala lōʻihi ko ke sila kalapona mechanical. ʻO ka Graphite kahi isoform o ka element carbon. I ka makahiki 1971, ua aʻo ʻo ʻAmelika Hui Pū ʻIa i ka mea sila graphite palupalu holomua, kahi i hoʻoponopono ai i ka leakage o ka valve ikehu atomika. Ma hope o ka hana hohonu ʻana, lilo ka graphite palupalu i mea sila maikaʻi loa, i hana ʻia i nā sila mechanical carbon like ʻole me ka hopena o nā ʻāpana sila. Hoʻohana ʻia kēia mau sila mechanical carbon i nā ʻoihana kemika, petroleum, mana uila e like me ke sila wai wela kiʻekiʻe.
Ma muli o ka hoʻokumu ʻia ʻana o ka graphite palupalu e ka hoʻonui ʻia ʻana o ka graphite hoʻonui ʻia ma hope o ke ana wela kiʻekiʻe, ʻo ka nui o ka mea intercalating i koe i loko o ka graphite palupalu he liʻiliʻi loa ia, akā ʻaʻole piha loa, no laila ʻo ke ola a me ka haku mele ʻana o ka mea intercalation he mana nui ia i ka maikaʻi a me ka hana o ka huahana.
