Method for making a silicon carbide resistor with silicon/silicon carbide contacts by induction heating

A method for making a recrystallized electrically conductive silicon carbide resistor having electrically conductive siliconized silicon carbide electrical contacts comprising the steps of:

• a) resin bonding electrically conductive siliconized silicon carbide contacts to first and second ends of a recrystallized silicon carbide resistor where the siliconized silicon carbide contacts, when bonded to the resistor with siliconized silicon carbide, are sized to carry sufficient current to the silicon carbide resistor to obtain a temperature rise in the resistor above 600° C., without a more than 100° C. rise in temperature of free ends of the contacts;
• b) placing the silicon carbide resistor with resin bonded siliconized silicon carbide contacts into an induction heating furnace having an induction coil which heats electrically conductive material in the furnace when sufficient electrical power at a frequency of from about 300 to about 1000 KC is passed through the coil;
• c) causing sufficient electrical power at a frequency of from about 300 to about 1000 KC to be passed through the coil to raise the temperature of the siliconized silicon carbide contacts and recrystallized silicon carbide resistor to a temperature above about 1500° C. at the regions of the resin bonds to pyrolize the resin and cause silicon metal to flow from the contacts into the recrystallized silicon carbide to form a siliconized silicon carbide bond between the contacts and resistor;
• and
• d) cooling the resulting recrystallized silicon carbide resistor to obtain a recrystallized silicon carbide resistor having siliconized silicon carbide contacts connected with siliconized silicon carbide bonds.