Alloys

The Qasion experiment to study the effect of weightlessness on the microstructure of aluminium nickel alloys.

Shape memory alloys are commercially used in orthodontic arch wires, eyeglass frames and coil spring thermal actuators.

Dendrite growth is the common form of crystal growth encountered when metals, alloys, and many other materials solidify in most industrial processes.

78. Shape memory alloys and polymers can return to their original shape upon being heated to a higher temperature after being shaped under thermomechanical conditions.

Aluminium and aluminium alloys used in the construction of shells shall have an elongation at fracture, in , of not less than 10,000 6Rm with an absolute minimum of 12 .

Aluminium and aluminium alloys used in the construction of shells shall have an elongation at fracture, in , of not less than 10 000 6Rm with an absolute minimum of 12 .

MMCs have been shown to possess the following advantages over unreinforced metal alloys lighter weight, greater resistance to wear and impact, lower coefficient of thermal expansion and greater strength and stiffness.

Smart material types include piezoelectric polymers, conductive polymers, piezoelectric and electrostrictive ceramics, electrorheological fluids, magnetorheological fluids, electrochromic coatings, magnetostrictive materials, micromachined integrated devices, and biomimetic polymers and gels, shape memory alloys and polymers.

In the future, these autonomous laboratory modules will make it possible to conduct technological experiments and produce new materials under conditions of lower microgravity, including experimental production in orbit of very pure biocrystals and alloys.

The in situ monitoring available in the MEPHISTO (French Material pour l apos Etude des Phenomenes Interessant la Solidification sur Terre et en Orbite) apparatus enabled the study of transport and kinetic phenomena during crystal growth of bismuth tin alloys.

And again, technology meant that I could do the fastest abseil over 100 meters, and stop within a couple of feet of the ground without melting the rope with the friction, because of the alloys I used in the descender device.

He and his six crew mates carried out 41 experiments to study the effects of gravity on the human body, on the development of plants and animals, on the processing of protein crystals and metallic alloys, and on fluid behaviour.

Another United States investigator successfully completed protocols to study the phenomenon of liquid phase sintering a process used to produce alloys of novel compositions from high temperature materials in the National Space Development Agency (NASDA) of Japan apos s Large Isothermal Furnace.

Some of the results and benefits of the ESA activities in that regard included the human reliability software developed through and for air traffic control, alloys for use in medicine, human physiology experiments performed in microgravity and the peristatic pump currently used in panda pregnancy projects.

But an utter lack of transparency allowed Russian companies, and their subsidiaries registered in third countries, to snap up most of the new offerings. Typical was the Russian holding company Promyslennye investory (Industrial Investors), which managed to get a major gold mine and then half of a plant producing gold alloys.