DEVELOPMENT OF METHODS AND INSTRUMENTS FOR MECHANICAL EVALUATION OF REFRACTORY MATERIALS AT VERY HIGH TEMPERATURES

摘要

The results of an evaluation of the system using a molybdenum-0.5 per cent titanium alloy in the bar form are pre¬sented. Tension, compression, shear and bearing tests were conducted at temperatures up to 3500 F. A detailed description of the testing system and specimen designs is presented. An optical strain-measurement system which permits displacements to be measured directly in the gage section is described.nThe state-of-the-art report on the development of equipment and techniques of mechanical-properties measurement is based on a survey of literature and discussions with researchers at Battelle and other laboratories.