Today at 19:50 Moscow time, Russian cosmonauts Sergei Ryzhikov and Alexei Zubritsky will go outside the ISS and install equipment for a scientific experiment on growing crystals, spending about five and a half hours in outer space.
The main task is to install equipment for the scientific experiment "Ekran-M" on the Nauka multipurpose laboratory module. The extravehicular activity program also includes exiting through the hatch of the Poisk small research module, using a manipulator to install equipment, moving to the Zvezda service module, cleaning the No. 1 porthole of the Zvezda module, and dismantling the removable cassette container with SKK No. 3-M2 material samples from the Poisk module.
The experiment is being conducted on the ISS, where evaporation of a chemical compound of gallium and arsenic will take place in ideal vacuum and weightlessness conditions. To create a semiconductor, the method of molecular beam epitaxy is used, in which layers of atoms are deposited with high precision on a substrate with an atomically smooth surface, forming the desired crystal structure.
In the future, such experiments may help create factories directly in orbit with the possibility of using a single chamber for all stages of production, and harmful substances inevitably formed during production on Earth are easily removed in outer space.
During the time the cosmonauts are outside the ISS, the station will make almost four orbits around the Earth. The actions of the cosmonauts will be commented on by expert Mikhail Kotov and extravehicular activity specialist Maxim Zaitsev.
Earlier, www1.ru wrote about how weightlessness improves the quality of semiconductors.
Read more materials on the topic:
- Experiments on the ISS and the distribution of responsibilities: Cosmonaut Ovchinin shared the secrets of working in space
- Russian cosmonauts conducted a series of scientific experiments in outer space on the ISS
- Russian installation "Ekran-M" for the synthesis of semiconductors delivered to the ISS
Now on home
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