A "dry" adhesive, polyimide, with increased adhesion to materials used in spacecraft engineering is synthesized and studied. Its adhesion properties are estimated using the method of force–distance curves on the basis of scanning-probe-microscope functionality. A technique is developed for the ...
Spacecraft material on the ISS The International Space Station (ISS) uses a lightweight ceramic material, labeled Z93, to protect itself. This material has been used as a viable protective material for more than 10 years. Z93 is a zinc oxide pigment in a potassium silicate binder. The ma...
They can be formed into different shapes and layered with fibers to allow forunique structureswith enhanced properties. These materials are so flexible that they can be used for both spacecraft and aircraft structures and components. Theirweight-to-strengthratio and high-temperature resistance have al...
Graphite composites remain a preferred structural material for modern spacecraft applications despite the growing library of charging data on the surface charging properties of composites and resin. Additional ground test data obtained at a number of relevant temperatures and electron beam current densities...
spacecraftcircle.AsatelliteinorbittravelsinarepeatingpatharoundEarthundertheinfluenceofgravity.LowEarthorbit(LEO)istheclosestorbittoEarthandisdefinedas200-2,000kmaboveEarth’ssurface.MosthumanspaceexplorationandmanysatellitesarelocatedinLEO.Thisincludessatellitesforweather,communication,spacecraftforscientificand...
Scientists and engineers conducting research for the Air Force Research Laboratory's Materials and Manufacturing Directorate have identified ceramic materials that could increase the life of ceramic Hall thruster insulators for spacecraft, including satellites and microsatellites. ...
Luminescent materials SrAl2O4:Eu2+,Dy3+,ZnO:Eu3+,Li1+ and SiO2: Eu3+,Li1+ were planed for used as the trace marker of spacecraft.The space environment effects(including high vacuum,ultraviolet irradiation,cold and thermal cycling)on them were investigated.It was demonstrated that ZnO:Eu3...
and an understanding of the wide range of materials used and the issues surrounding them is essential for the student of aerospace engineering.Introduction to aerospace materials reviews the main structural and engine materials used in aircraft, helicopters and spacecraft in terms of their production,...
Composite materials are heterogeneous materials composed of at least two constituent materials. Among the different types of composite materials, layered composite materials are quite common and are widely used for aircraft, spacecraft, wind turbine, automobile, marine, buildings, and safety equipment use...
Metals are extremely good conductors of electricity and heat and are not transparent to visible light; a polished metal surface has a lustrous appearance. Furthermore, metals are quite strong, yet deformable, which accounts for their extensive use in structural applications.科技英语在讲述科学真理的...