ELECTRICAL RESISTANCE HEATING ELEMENTS

摘要

A silicon carbide heating element is provided having one or more hot zones and two or more cold ends in which:- the cross-sectional areas of the two or more cold ends are substantially the same or less than the cross-sectional areas of the one or more hot zones; and part at least of at least one cold end comprises a body of recrystallised silicon carbide material coated with a conductive coating having an electrical resistivity lower than that of the recrystallised silicon carbide material.