Electrically conductive compositions and method of manufacture thereof

Claim 1

A COMPOSITION CONSISTING ESSENTIALLY OF A LEAD-TELLURIUM BASE CONSTITUENT CONSISTING ESSENTIALLY OF FROM 61.95% TO 63.0% BY WEIGHT LEAD, AND THE BALANCE SUBSTANTIALLY ALL TELLURIUM, AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF, BISMUTH, TANTALUM, MANGANESE, ZIRCONIUM, TITANIUM, ALUMINUM, GALLIUM, CHLORINE, BROMINE, IODINE, URANIUM, SODIUM, POTASSIUM,THALIIUM AND ARSENIC, IN AN AMOUNT EFFECTIVE TO MODIFY THE CONDUCTIVITY OF SAID BASE CONSTITUENT NOT IN EXCESS BY WEIGHT PERCENT OF THE LEAD AND TELLURIUM OF SAID MEMBERS AS FOLLOWS: 0.50 TANTALUM; 0.25 MANGANESE; 0.25 ZIRCONIUM; 0.15 TITANIUM; 0.10 ALUMINUM; 0.25 GAILIUM, 0.10 CHLORINE; 0.20 BROMINE; 0.25 IODINE; 0.80 URANIUM; 0.06 SODIUM; AND 0.10 POTASSIUM; AND BISMUTH, THALLIUM AND ARSENIC NOT IN EXCESS OF FROM 0.60 TO 1.20, FROM 0.25 TO 1.00 AND FROM 0.07 TO 0.25, RESPECTIVELY, OVER THE AFOREMENTIONED RANGE OF LEAD.