出版社：Natsional'nyi Tekhnichnyi Universytet Ukrainy "Kyivs'kyi Politekhnichnyi Instytut imeni Ihorya Sikors'koho",National Technical University of Ukraine "Ihor Sikorsky Kyiv Polytechnic Institute"
摘要：A texturing surface modification process was developed for Silver- Inconel coated Teflon thermal protection coverings that were applied to a camera and light equipment on the International Space Station using an adhesive. The developed treatment that involves an ion-beam texturing process that changes the appearance of the surface in a controlled manner from a metallic-like and shiny to complete milky-white appearance reduced dramatically the specularity of Silver-Teflon thermal control films without significantly affecting their thermal optical properties. The space hardware covered with the textured back metallized Teflon was exposed to the open space environment between June 2002 and June 2006 and delivered back to earth around November 2006. Remarkable performance was demonstrated by the treated metallized Teflon with the solar absorptance and total emittance values and the α/ε ratio remaining very close to the original values as measured before the flights..
其他摘要：Abstract. The data of mathematical modeling of the thermal state of a cutting tool under conditions of laser hardening are presented. The features of the implementation of the method of polyargument systems for solving the three-dimensional heat transfer problem with a localized movable laser heating source are considered. The data of numerical studies to establish patterns of the influence of the radius of the heating spot on the temperature regime of the hardened tool are presented. It is shown that varying this parameter can be used as an effective way of influencing the thermal state of a cutting tool during its hardening by a laser beam. The results of modeling the temperature conditions of the tool in a wide practically important range of changes in its sharpening angle are presented.
关键词：Diffuse reflectance;metallized Teflon;Low Earth Orbit; Innternational Space Station Mobile Servicing System
其他关键词：Diffuse reflectance;metallized Teflon;Low Earth Orbit;Innternational Space Station Mobile Servicing System
