Page 39 - february
P. 39

SUCCESS SECRET

                                                                          "In  our  case,  the  coating  is  applied
                                                                  from the gas phase," says Daniil Zuza. "We
                                                                  take a substance that we call a monomer
                                                                  (by  analogy  with  polymerization  in  the
                                                                  traditional sense), evaporate it and transport
                                                                  these vapors into the plasma, where various
                                                                  plasma-chemical reactions take place. As a
                                                                  result,  active  particles  are  formed,  which
                                                                  are  deposited  on  the  substrate  and  form
                                                                  a  coating.  In  time,  this  process  takes  no
                                                                  more than 30 minutes, and the coating is
                                                                  smooth and mechanically strong. Since the
                                                                  deposition occurs from the gas phase, there
                                                                  are no problems with the penetration of the
                                                                  reaction gas into hard-to-reach places."
                                                                          According to the developers, the new
                                                                  coating is able to protect electrical printed
                                                                  circuit boards  and  electronic  components
                                                                  operating in aggressive environments - with
                                                                  high humidity, temperature  extremes  and
                                                                  in the  presence  of  chemically  aggressive
                                                                  substances.  In particular, testing has
                                                                  shown that the coating retains its functional
                                                                  properties after thermal cycling in air in the
                                                                  temperature range from -196 °C to + 130
                                                                  °C. We add that scientists plan to continue
                                                                  research and expand the scope of the new
                                                                  coating. For example, a joint development of
                                                                  researchers from TGU and ISE is promising
                                                                  for use in outer space to protect live parts
                                                                  of spacecraft.
















                                                                                                    Tomsk State University

                                                                                                    Stanochniy park     39
   34   35   36   37   38   39   40   41   42   43   44