I-coke yenaliti ene-calcined yahluke kakhulu kwi-sponge coke kwipropathi, enoxinano oluphezulu, ukucoceka okuphezulu, amandla aphezulu, umxholo wesulfure ephantsi, umthamo ophantsi we-ablative, i-coefficient ephantsi yokwandiswa kwe-thermal kunye nokuxhathisa ukothuka kwe-thermal.