Technological experiments aboard “Salyut-5”

During the flight of the Soviet orbital space complex “Salyut-5”—“Soyuz” the experiments on the space technology and materials production had been conducted amongst the versatility of various scientific research. The experiment “Diffusiya” was aimed at investigating the features of mass transfer under near-zero-gravity conditions. The experimental results had been compared with those obtained under terrestrial conditions and theoretical calculations. The experiment “Potok” was aimed at studying the gas inclusions motion dynamics in the liquid. The crystal growth from solutions was fulfilled with the aid of the “Crystal” instrument. The experiment “Sphera” had an objective to study the solidification of multicomponent metal sample with a free surface. When soldering the pipe junctions use was made of the “Reaktsiya” instrument. The experimental results contributed greatly to the creation of scientific foundations of space technology and material production.