HIGH VOLTAGE CERAMIC IGNITER

摘要

A method of heating, compris- ing the step of providing a line voltage of between 120 V and 230 V across a ceramic igniter having a hot zone composition comprising: (a) between 50 and 80 v/o of an electrically insu- lating ceramic having a resistivity of at least about 10 10 ohm-cm; (b) be- tween 10 and 45 v/o of a semicon- ductive material having a resistivity of between about 1 and about 10 8 ohm- cm; (c) between 5 and 25 v/o of a metallic conductor having a resistiv- ity of less than about 10-2 ohm-cm; and (d) between 2.0 and 20 v/o of a resistivity-enhancing compound se- lected from the group consisting of metallic oxides, metallic oxynitrides, rare earth oxides, rare earth oxyni- trides, and mixtures thereof.