TY - JOUR AU - Lee, S. Y. AB - piece of asbestos, was used as a heat source. The Technique for Measuring the Emittance heating rate was regulated with a variable-voltage of Polymers at Elevated Temperatures* transformer. The powdered polystyrene( in this ease) was placed in a shallow, thick-bottomed, brass dish, which was about 2.5 em in diam and rested on the J. G. Hansel hot plate. A thermocouple was attached to a device Guggenheim Laboratories, Princeton University, Princeton, which permitted the thermocouple junction to be New Jersey 08540 raised or lowered near the surface of the material. The thermoeouple leads were bent a few millimeters S. Y. Lee* from the bead to facilitate the placing of the leads Combustion Laboratory, Stevens Institute of Technology, as well as the junction onto the surface and, thereby, Hoboken, New Jersey 07030 reduce heat conduction loss into the leads. The pro- cedure was to supply a steady current to the hot A simple technique has been devised for determin- plate; and, after the polystyrene melted, the thermo- ing the high-temperature, spectral emittanee of ma- couple was placed on the molten surface. With con- terials which are melting and/or decomposing. The tinued heating, the radiation intensity was recorded method has been applied TI - Technique for Measuring the Emittance of Polymers at Elevated Temperatures JO - Applied Spectroscopy DO - 10.1366/000370267774384958 DA - 1967-07-01 UR - https://www.deepdyve.com/lp/sage/technique-for-measuring-the-emittance-of-polymers-at-elevated-0yiHvuA2ka SP - 261 EP - 262 VL - 21 IS - 4 DP - DeepDyve ER -