VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • AES studies of surface phenomena on liquid indium solder
    Jenko, Monika ; Erjavec, Bojan, 1950-2023 ; Praček, Borut
    Fluxless vacuum soldering is widely used in optoelectronics for hermetic encapsulation in the production of second and third generation image-intensifier tubes. Extremly clean surfaces are ... indispensable for obtaining good wetting with liquid solder in this sophisticated sealing technique. A new sensitive investigation method based on Auger Electron Spectroscopy for studies of surface phenomena on liquid indium solder has been developed. An Auger Spectrometer is adapted to study the following phenomena: - surface oxidation of crystalline and liquid indium in the temperature range from 298 K to 523 K in a vacuum at constant oxygen pressure of 5x▫$10^{-5}mbar with oxygen time exposure up to 100 min; - isothermal dissociation of In_2O_3 thin film on liquid indium surface described by reaction: In_2O_3(c)+4In(l)=3In_2O(g) at the temperatures of 633K, 675K, 750K and 820K in a vaccum below 1x10^{-9}mbar. The equation for In_2O vapour pressure calculation log p(In_2O)=(-12536/T)+12.75 was obtained from thermodynamic functions for bulk materials and from equilibrium of the afore-cited reaction.$▫
    Vir: Vacuum. - ISSN 0042-207X (Vol. 40, no. 1/2, 1990, str. 77-80)
    Vrsta gradiva - članek, sestavni del
    Leto - 1990
    Jezik - angleški
    COBISS.SI-ID - 18671877

vir: Vacuum. - ISSN 0042-207X (Vol. 40, no. 1/2, 1990, str. 77-80)
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