Go to the main menu
Skip to content
Go to bottom
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 44, Issue 6 - Dec 2011
Volume 44, Issue 5 - Oct 2011
Volume 44, Issue 4 - Aug 2011
Volume 44, Issue 3 - Jun 2011
Volume 44, Issue 2 - Apr 2011
Volume 44, Issue 1 - Feb 2011
Selecting the target year
CrN and TiN Coatings for the Wear Resistance of Extrusion Mold for Magnesium
Lee, Su-Young ; Kim, Sang-Ho ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 233~238
DOI : 10.5695/JKISE.2011.44.6.233
The friction and wear characteristics of CrN and TiN coatings on SKD61 which is mold material using for extrusion of AZ80 magnesium alloy were investigated. The coatings were deposited by the arc ion-plating method, and the thickness were about
, respectively. Reciprocating friction wear tests were conducted by varying pin load and temperature of counter substrate at un-lubricated condition. The pin loads were 11, 15 and 19 kgf, and the substrate temperatures were room temperature and
. CrN coating which has a lower friction coefficient and a smaller adhesive wear with AZ80 magnesium alloy showed better wear resistance than TiN coating.
Study of Plating Layer Formation of Lightweight Magnesium Alloy (AZ31B)
Choi, Kyoung-Su ; Choi, Soon-Don ; Min, Bong-Ki ; Lee, Seung-Hyeon ; Sin, Hyeon-Jun ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 239~245
DOI : 10.5695/JKISE.2011.44.6.239
Magnesium alloys is the lightest by structural metals, but it is not good corrosion resistant because of pit, void. Particularly, AZ31B magnesium alloy sheets that have slag, scratch by rolling process indicate some defects. The objective of this research is to perform uniform plating on AZ31B by studying etching and zincate process. Especially, zincate treatment by zinc salt and pyrophosphate is the most important in the decoration plating. Dissolution of magnesium is reduced by the formation of uniform zinc conversion layer during strick and post process, which decreases defects for plating process.
Effect of Heat Treatment on the Adhesive Strength of Electoless Nickel Deposits
Hyun, Yong-Min ; Yu, Sung-Yeol ; Yoon, Jung-Yun ; Kim, Bo-Young ; Kim, Sun-Ji ; Tahk, Song-Hee ; Kim, Hee-San ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 246~249
DOI : 10.5695/JKISE.2011.44.6.246
Surface modification before coating nickel by coupling agents and/or etchant of glass did not provide enough adhesive strength of electroless nickel deposits on glass. Effect of heat treatments on hardness as well as adhesion of nickel deposits was studied by using tape test for adhesion, nanoindenter for hardness and glancing angle x-ray diffractometer (GAXRD) for phase characterization. Heat treatment improved hardness as well as adhesion. XRD results give that the improvements of adhesion and hardness are due to the formation of
around the interface between the nickel deposits and the glass and the precipitation of
causing precipitation hardening, respectively. The details in effects of heat treatment on adhesion and hardness are described here.
Fabrication and Characteristics of NiO-AZO Thin Films Deposited by Co-sputtering System for GaN LED Transparent Contact Electrode
Park, Hee-Woo ; Bang, Joon-Ho ; Hui, Kwun Nam ; Song, Pung-Keun ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 250~254
DOI : 10.5695/JKISE.2011.44.6.250
NiO-AZO films were deposited on glass substrate by DC and RF magnetron co-sputtering system in pure
gas without substrate heating during deposition. In order to control the chemical composition of the film, NiO target was supplied with constant RF power of 150 W and AZO target (doped with 2.98 at% aluminum) with DC power varied between 40 W to 80 W. Deposited NiO-AZO films were evaluated by structural and chemical analysis. With introducing AZO, XRD and XPS data reveal that NiO were supplied with more oxygen. these results could be strongly affected by the higher bond enthalpy of NiO compared to ZnO, which makes it possible for NiO to obtain excessive oxygen from ZnO.
The Effect of Thicknesses on Magnetic Properties of Fe-Hf-N Soft Magnetic Thin Films
Choi, Jong-Won ; Kang, Kae-Myung ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 255~259
DOI : 10.5695/JKISE.2011.44.6.255
The thickness dependence of magnetic properties was experimentally investigated in nanocrystalline Fe-Hf-N thin films fabricated by a RF magnetron sputtering method. In order to investigate the thickness effect on their magnetic properties, the films are prepared with different thickness ranges from 90 nm to 330 nm. It was revealed that the coercivity of the thin film increased with film thickness. On the contrary, the saturation magnetization decreased with film thickness. On the basis of the SEM and TEM, an amorphous phase forms during initial growth stage and it changes to crystalline structure after heat treatment at
. Nanocrystalline Fe-Hf-N particles are also generated.
Effect of ITO Layer on Electrical and Optical Properties of GZO/ITO Double-layered TCO Films Deposited by RF Magnetron Sputtering for Application to Solar Cells
Chung, Ah-Ro-Mi ; Song, Pung-Keun ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 260~263
DOI : 10.5695/JKISE.2011.44.6.260
GZO/ITO double layered films were deposited on unheated non-alkali glass substrates by RF magnetron sputtering using an ITO (
: 10 wt%) and GZO(
: 5.57 wt%) ceramic targets, respectively. The electrical resistivity of GZO/ITO films depends on the thickness ratio between the GZO film and ITO film. With increasing ITO film thickness, the resistivity of GZO/ITO films decreased which due to large increase in the Hall mobility. Also, the crystallinity of GZO/ITO film was improved with an increase in ITO thickness which was evaluated by X-ray diffraction. The average transmittance of the films was more than 85% in the visible region, which is slightly higher than ITO single layer films.
The Study on the Electrical Resistivity for Mo Back Contacts Film of CIGS Solar Cell
Kim, Gang-Sam ; Cho, Yong-Ki ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 264~268
DOI : 10.5695/JKISE.2011.44.6.264
The Molybedenium thin film is generally used on back contact material of CIGS solar cell due to low electrical resistivity and stable thermal expansion coefficient. The Mo thin films deposited on si wafer by the magnetron sputtering method. The research focused on the variation of electrical resistivity of films which deposited with various working pressure at the target power of 2.0 kW(8.4 W/). The lowest resistivity of Mo thin film showed
-cm at pressure of 1.5 mTorr. However, working pressure increasing up to 50 mTorr, resistivities were highly increased. The results showed that the conductivity of Mo films depended on growing structures and defects in deposition process. Surface morphology, porosity, grain size, oxidation, and bonding structures were analysed by SEM, AFM, spectroscopic ellipsometry (SE), XRD, and XPS.
Tribology and Phase Evolution of Cr-Mo-N Coatings with Different Interlayer Condition
Yang, Young-Hwan ; Lyo, In-Woong ; Park, Sang-Jin ; Im, Dae-Sun ; Oh, Yoon-Suk ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 269~276
DOI : 10.5695/JKISE.2011.44.6.269
Phase evolution and tribological behavior of Cr-Mo-N multi compositional films with different interlayer were investigated. The films were deposited by hybrid PVD (Physical Vapor Deposition) system consisted of dc unbalanced magnetron (UBM) sputtering and arc ion plating (AIP) sources. A pure molybdenum (Mo) was used as sputtering target and also a pure Cr was used as AIP target to form the Cr-Mo-N films. Various growth planes were found, no textured surface, in all of the multi composition films. Maximum value of microhardness was measured in Cr-Mo-N film with Mo interlayer as 29 GPa. Composition film was mainly showed the aspect of the adhesive wear than CrN film. The friction coefficient was decreased from 0.6 for pure CrN coating to 0.35 for Cr-Mo-N film with Mo interlayer. This result may come from the formation of metal oxide tribo-layer which is known as solid lubricant during the wear test.
Cavitation and Electrochemical Characteristics Using Hydrogen Overpotential Method for ALBC3 Alloy
Park, Jae-Cheul ; Lee, Seung-Jun ; Kim, Seong-Jong ;
Journal of the Korean institute of surface engineering, volume 44, issue 6, 2011, Pages 277~283
DOI : 10.5695/JKISE.2011.44.6.277
In this study, the cavitation test and electrochemical experiments were conducted for ALBC3(Cu-Al) alloy that has an excellent corrosion resistance and cavitation characteristic in sea water. Based on the ASTMG32 regulation, the cavitation test was performed with the cavitation and cavitation erosion tester using piezoelectric effect. The electrochemical characteristics are evaluated with potentiostatic experiments in activation polarization potential range. As a result, cavitation damage is increased proportionally to temperature and time at
amplitude. It is appeared that acceleration period in weight loss presented over 6 hours under the cavitation environment in sea water. In addition, corrosion damages were observed at the potential range of -3.2~-1.4 V as the result of potensiostatic experiments during 12 hours in activation polarization potential range.