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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean institute of surface engineering
Journal Basic Information
Journal DOI :
The Korean Institute of Surface Engineering
Editor in Chief :
Volume & Issues
Volume 28, Issue 6 - Dec 1995
Volume 28, Issue 5 - Oct 1995
Volume 28, Issue 4 - Aug 1995
Volume 28, Issue 3 - Jun 1995
Volume 28, Issue 2 - Apr 1995
Volume 28, Issue 1 - Feb 1995
Selecting the target year
Study on the Leaching Characteristics of Simulated Nuclear Waste Glass with variable Composition
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 259~266
In order to manufacture an attractive waste glass for the permanent and secure disposal of high-level radioactive waste, the complex composition of the simulated nuclear waste glass PNL-7668 was simplified to a composition of sodium borosilicate glass. The substitutions of
were added to examine on the leaching characteristics of simulated nuclear waste glass with variable composition. The leach tests for these glasses were performed according to 'MCC-1, Static Leach Test Procedure' in acid and basic solution. In this study, for the
-containing glasses, Na ion release from these glasses was higher in acid solution than in basic solution. As the content of
was increased in glasses, Na ion release was increased in acid solution, in spite of decrease of amount of total mass diminution.
Effects of Electron Beam Heating(EBH) on the Properties of ion Plated Ti(C, N) Films
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 267~275
Electron beam can provide convenient way to heat the substrate during Hollow Cathode Discharge (HCD) ion plating of Ti(C, N)films. Densification of columnar structrue is enhanced by longer duration of electron beam heating(EBH). While strong(111) texture is identified always to be formed, the amount of (200) oriented grains which coherently interfaced with carbide particles of the substrate increased with heating(EBH). In turns, these crystallogaphical change lead to the increase of micro hardness and adhesion of coating. Adhesion of Ti(C, N) films increased more dramatically in case of ASP30 substrate of which carbide particles dispersed more finely than M42. Therefore, it could be concluded that both the density of film and interfacial structure can affect the adhesion property. Overheating of substrate could be resulted in low adhesion resistance due to high residual stress developed in the film.
A Study on the Fabrication of Porous Nickel Substrates Using Graphite Powder
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 276~288
A nickel mesh and an expanded nickel sheet were used as a current collector for supporting active materials of cathode in rechargeable batteries, while a porous nickel substrate was extensively studied because of its 3-dimensional structure which has high capabilities for active materials and current collection. Optimum coating conditions were studied by SEM and two step d. c. constant current electrolysis for the graphite coating and electro-plated nickel on an urethane substance which was highly porous and 3-dimensional structure. The density and the porosity of nickel support obtained by using two step current density and 80 ppi urethane substance were 0.38∼0.40 g /㎤ and 94∼96%, respectively. It was possible to fabricate a highly porous and good packable nickel substrate using two step current density and surfactants at sulfamic acid nickel plating bath.
Effects of phosphate coating on some performance of painted Al alloy sheet
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 289~299
The effects of phosphate coating have been studied on physical properties and corrosion resistance of painted aluminum alloy sheet for automobile body. The physical properties (surface roughness, paint adhesion, impact resistance and pencil hardness) and corrosion resistance(cyclic corrosion and filiform corrosion) were investigated. Phosphate coatings enhanced the physical properties of painted Al alloy sheet, especially paint adhesion after the 240hours water immersion test. Phosphate coating also markedly improved the resistance for cyclic corrosion and filiform corrosion of painted cold rolled steel and Zn-Ni plated steel sheet as well as painted Al alloy sheet. The corrosion resistance of painted Al sheets was varied with the concentration of free fluoride ion and metal additives like Ni and Mn in the phosphating bath. A maximum corrosion resistance was obtained at about 300ppm of fluoride ion and additives of Ni and Mn obviously increased the corrosion resistance of painted specimens.
Study of Characteristics of Hot Dip Galvanized Steel Strip by Oxygen-free Finishing
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 300~308
The effect of nitrogen finishing for the control of coating weight in a nitrogen sealing box on the coating surface property in hot dip galvanizing process has been studied. The coated surface is free of oxide marks and edge overcoated. The coating uniformity is excellent ; the standard deviation of the coating thickness along width of the specimen was
in the box whereas
in the air. Considering surface quality of the coating such as oxide mark, edge overcoated and zinc dust, the oxygen content between 40 and 200 ppm was suggested in the box in addition the oxygen content of at least 40 ppm or the minimum dew point of
is required to prevent a zinc vaporization.
Metallization on Patterned Substrate
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 309~319
The substrate patterned with the dry film has the cavity which has the
wall angle. Electroplating Cu on this patterned substrate has the differrent shape history with the electrochemical parameters. By potential theory model, the reason of the variation of the shape change with the these parameters was investigated. The shape history could be explained by the current flow and the correlated area effects. By embedding the Ni layer between the Cu layers, shape history with the time was obtained experimentally and the results was compared with the numerical analysis by BEM. The adhesive Cr-Cu film in TAB application was etched with the various condition. The best condition for the etchant of the Cr-Cu film was found.
Thermal diffusion behaviors of electrogalvanized steel sheets
Journal of the Korean institute of surface engineering, volume 28, issue 5, 1995, Pages 320~328
The electroplated steel sheets were heated during the short periods(10~60 seconds) at high temperature (
) in order to investigate thermal diffusion behaviors. When the steel sheets were heated for 10 seconds, all the coated layers were alloyed at
but at temperature lower than
phase partially remained on the coated surface. At higher temperature, the longer the time for heat treatment the iron contents were increased in coated layer but the glossiness and whiteness of the coated surface were decreased. While the alloying phases of
were appeared in the coated layer at the heat treatment temperature of
, the phase was disappeared at
but the rests grew in size at the temperature of
. When the heat treatment temperature and heating time were increased, the thickness of
phase was rapidly increased to 0.8
. The optimum conditions for the heat treatment to prevent powdering of coated layer were obtained to heat it for 30 seconds at
and 10 seconds at
, and the iron content in coated layer was suited to be 10 percents.