Thermal barrier coatings (TBCs) increase the thermal capability and enhance efficiency of gas turbines and jet engines. Their industrial and commercial importance has motivated researchers to investigate more effective material compositions. Extensive research has been conducted at UC Santa Barbara on TBC’s applied to substrates via electron beam physical vapor deposition (EB/PVD). Characterization of new TBC’s depends on many factors, including temperature of deposition. Current temperature measurement technology implemented at UCSB uses a stationary thermocouple to take an average temperature of the chamber and is insufficiently accurate when reporting the temperature of the substrate. The two main difficulties are the substrates necessity to continuously spin to attain a uniform coating and the high operating temperatures during the EB/PVD process. Herein we report our efforts towards the design and fabrication of a thermocouple slip ring assembly that will allow accurate temperature measurements to be taken in the EB/PVD chamber. A customized slip ring will be made using macor, a machinable ceramic with low electrical conductivity and low thermal expansion coefficient. Completion of the project will allow researchers to gain valuable information advancing their search for an optimal TBC.