Retrieved September 2009 by the crew of NASA's Space Shuttle Endeavour, ORMatE-1 is a passive study of optically reflective materials with a focus on silicon carbide (SiC) for use as a lightweight mirror substrate. Various types of SiC ceramics, as well as various coating materials and cladding deposition technologies are also tested in the experiment.
"Lightweight, high precision mirrors are critical for enhanced optical systems and advanced communication systems currently being designed and tested," said Robert Walters, Ph.D., head of NRL's Solid State Devices Branch. "The effects of different optical polishing methods are investigated to determine if the different processes result in varying resistance to radiation exposure for future space-based applications."
ORMatE-1 provides a platform to expose new materials to the harsh environment of space and to generate on-orbit performance data to support space qualification of specific materials. The experiments are housed within the Passive Experiment Container (PEC), a roughly two-foot by two-foot metal box, and affixed to the ISS. After an exposed period of one to two years, the PEC is closed and recovered by an astronaut for return to Earth for post-flight evaluation.
In addition to SiC material testing, NRL scientists will conduct post-flight analysis of other advanced glass substrate materials including ultra-low expansion (ULE) and corrugated borosilicate, multiple coating and traditional substrate combinations and a novel mirror design consisting of a composite sandwich structure of molded borosilicate used to evaluate structural integrity and optical performance. ORMatE-1 will help quantify effects on optical and mechanical properties as a result of radiation, micrometeor pitting and compaction, which can change the radius curvature of components. Research will also assist in determining the effects of degassing of dense and porous materials as a result of going from ambient to vacuum conditions, ultra-violet (UV) and atomic oxygen exposure.
ORMatE-1 is conducted as a scientific research partnership with The Aerospace Corporation, Naval Research Laboratory and the Air Force Research Laboratory Materials Directorate (AFRL/ML) and is part of NASA's Materials on the International Space Station Experiment (MISSE), a Langley Research Center (LaRC) program designed to provide rapid access to space for materials and device exposure tests via the ISS.
The Naval Research Laboratory is the Department of the Navy's corporate laboratory. NRL conducts a broad program of scientific research, technology, and advanced development. The Laboratory, with a total complement of nearly 2,500 personnel, is located in southwest Washington, DC, with other major sites at the Stennis Space Center, MS; and Monterey, CA.
Daniel Parry | EurekAlert!
Pulses of electrons manipulate nanomagnets and store information
21.07.2017 | American Institute of Physics
Vortex photons from electrons in circular motion
21.07.2017 | National Institutes of Natural Sciences
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy