SILICON CARBIDE HEATING ELEMENT

摘要

PROBLEM TO BE SOLVED: To obtain a recrystallized silicon carbide heating element stably usable in a corrosive gas atmosphere over a long period and excellent in durability. SOLUTION: This silicon carbide heating element is characterized in that heating parts are composed of a recrsytallized SiC and an Al2O3/CaO/Na2O composite composition comprising a composition of 50-80 wt.% of Al2O3, 10-35 wt.% of CaO and 2-10 wt.% of Na2O is filled in the surfaces of binding parts among SiC particles of the recrystallized SiC.