|2019 №02 (03)||DOI of Article
|2019 №02 (05)|
SEM, 2019, #2, 22-26 pages
Journal Современная электрометаллургия
Publisher International Association «Welding»
ISSN 2415-8445 (print)
Issue № 2, 2019 (June)
Electron beam evaporation of iron and condensation of its reflected vapor flow
G.G. Didikin, A.K. Petrenko
E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: firstname.lastname@example.org
Technological variant of electron beam evaporation and controlled deposition of a directed atomic-molecular vapor flow (in its reflection by a reflector heated surface) on plane surface was considered. On the example of iron coatings a specific weight gain of samples, located on horizontal surface, was determined depending on their removal from the evaporator axis. Efficiency factor of process of metal deposition on horizontal surface around evaporator was calculated depending on the reflector size, angle of its inclination to horizon, its removal from evaporator and rate of metal evaporation. It is shown that the highest efficiency factor of the process of deposition of metal vapor flow is attained at horizontal location of the reflector with increase in area of its reflecting surface and metal evaporation rate. Distances from evaporator to reflector at maximum process efficiency factor are indicated. Ref. 4. Tabl. 2, Fig. 5.
Key words: electron beam evaporation and condensation; coefficient of vapor reflection; reflector; vapor flow; iron
References1. Palatnik, L.S., Grishchenko, Yu.I. (1967) Reflector for condensation of films with set distribution of thickness. Zavod. Laboratoriya, 7, 774–776 [in Russian].
2. Movchan, B.A., Ushakova, S.E., Lyakhov, V.I. (1980) Study of processes of reevaporation in vacuum condensation of copper, nickel, iron and titanium. Problemy Spets. Elektrometallurgii, 13, 66–69 [in Russian].
3. Movchan, B.A., Ushakova, S.E., Lyakhov, V.I. (1981) Examination of reflection of vapor flows of nickel and copper from heated surfaces. Ibid., 15, 49–52 [in Russian].
4. Lyakhov, V.I., Movchan, B.A. (1981) Producing of double-sided nickel coating on steel strip during electron beam evaporation and condensation using concave reflector. Ibid., 16, 42–43 [in Russian].