A unique thermocouple for measuring temperatures above the tungsten/tungsten-rhenium range of 2400 deg c has been described in our company's US Patent 4,650,920. The use of this graphite fixer thermocouple offers many advantages in testing of materials at high temperatures as compared to radiation sensors. To be commercially sucessful this graphite fiber thermocouple must have a reproducibile and stable seebeck voltage. This proposal will fund research to examine the output and stability of four various fiber thermocouples replicated four times each.
