[en] The Multirod Burst Test (MRBT) Program requires prompt availability of high-quality fuel simulators (FSs) to meet its program objectives (studies of Zircaloy deformation resulting from postulated PWR LOCA conditions). The FS electrically simulates the thermal behavior of the nuclear fuel. The primary FS performance requirement is uniform axial clad temperature distribution (maximum allowable deviation of +- 1.5%) during transient conditions. This is determined by transient infrared examination of the FS ramped to 500⁰C (932⁰F) at a rate of 50⁰C (90⁰F) per second. (The industrially procured simulators rarely met this requirement, yet many were used for less critical applications.) This report delineates the development of a new fabrication technology for the FS by the ORNL Fuel Rod Simulator Technology Development Program; this technology alleviated the difficulties encountered with simulators procured from industrial sources