I-carbon seal yomshini inomlando omude. I-Graphite iyi-isoform ye-element carbon. Ngo-1971, i-United States yafunda izinto zokuvala eziguquguqukayo ze-graphite eziphumelelayo, ezaxazulula ukuvuza kwe-athomu energy valve. Ngemva kokucubungula okujulile, i-graphite eguquguqukayo iba yinto enhle kakhulu yokuvala, eyenziwa ibe yizivalo ze-carbon mechanical ezihlukahlukene ngomphumela wezingxenye zokuvala. Lezi zivalo ze-carbon mechanical zisetshenziswa ezimbonini zamakhemikhali, ze-petroleum, zamandla kagesi njenge-fluid seal yokushisa okuphezulu.
Ngenxa yokuthi i-graphite eguquguqukayo yakhiwa ukwanda kwe-graphite enwetshiwe ngemva kokushisa okuphezulu, inani le-ejenti ehlanganisayo esele ku-graphite eguquguqukayo lincane kakhulu, kodwa hhayi ngokuphelele, ngakho-ke ukuba khona nokwakheka kwe-ejenti ehlanganisayo kunethonya elikhulu kwikhwalithi nokusebenza komkhiqizo.
