caa a22 4500 465755763 CHVBK 20180323111846.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF01184335 doi (NATIONALLICENCE)springer-10.1007/BF01184335 A dynamic technique for thermophysical measurements at high temperatures in a microgravity environment [Elektronische Daten] [A. Cezairliyan, A. Miiller] Millisecond-resolution dynamic techniques for thermophysical measurements, when utilized in the laboratory, are limited to the study of materials in their solid phase because the specimen becomes geometrically unstable during melting and collapses, due (at least in part) to the influence of gravity. Therefore, a millisecond-resolution dynamic technique is being developed for use in a microgravity environment in order to extend accurate measurements of selected thermophysical properties of electrically conducting refractory materials to temperatures above their melting point. The basic method involves heating the specimen resistively from ambient temperature to temperatures above its melting point in about 1 s by passing an electrical current pulse through it, while simultaneously recording the pertinent experimental quantities. A compact pulse-heating system, suitable for microgravity simulations with NASA's KC-135 aircraft, has been constructed and initial experiments have been performed to study the geometrical stability of rapidly melting specimens. Preliminary results show that rod-shaped specimens can be successfully pulseheated into their liquid phase. Plenum Publishing Corporation, 1990 dynamic techniques nationallicence high temperature nationallicence liquid metals nationallicence melting nationallicence microgravity nationallicence refractory materials nationallicence Cezairliyan A. Thermophysics Division, National Institute of Standards and Technology, 20899, Gaithersburg, Maryland, USA aut Miiller A. Thermophysics Division, National Institute of Standards and Technology, 20899, Gaithersburg, Maryland, USA aut International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/4(1990-07-01), 653-662 0195-928X 11:4<653 1990 11 10765 https://doi.org/10.1007/BF01184335 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01184335 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cezairliyan A. Thermophysics Division, National Institute of Standards and Technology, 20899, Gaithersburg, Maryland, USA aut NATIONALLICENCE 700 1- Miiller A. Thermophysics Division, National Institute of Standards and Technology, 20899, Gaithersburg, Maryland, USA aut NATIONALLICENCE 773 0- International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/4(1990-07-01), 653-662 0195-928X 11:4<653 1990 11 10765 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer