• Tribology and Lubricants
• /
• v.18 no.4
• /
• pp.260-266
• /
• 2002

In this study, the effects of oxide layer farmed on the wear tracks of TiN coated silicon wafer on friction and wear characteristics were investigated. Silicon wafer was used for the substrate of coated disk specimens, which were prepared by depositing TiN coating with 1 ${\mu}{\textrm}{m}$ in coating thickness. AISI 52100 steel ball was used fur the counterpart. The tests were performed both in air for forming oxide layer on the wear track and in nitrogen to avoid oxidation. This paper reports characterization of the oxide layer effects on friction and wear characteristics using X-ray diffraction(XRD), Auger electron spectroscopy(AES), scanning electron microscopy (SEM) and multi-mode atomic force microscope(AFM).

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
• /
• 2002.10b
• /
• pp.161-162
• /
• 2002

This study concerns the tribological behaviors of ultra-thin DLC coating with 3 nm thickness deposited in a mixed gas of argon + 20 % hydrogen as a function of humidity. Reciprocating wear tests employing a micro wear tester were performed under various normal loads and relative humidity in air environment. The chemical composition of the original and worn surfaces were studied by Auger electron spectroscopy (AES). It showed that the ultra-thin DLC coating exhibited low friction with enough wear stability at low normal load (0.18 N) and its tribological behavior was strongly dependent on the humidity. The sample surfaces before and after the test were examined using atomic force microscopy (AFM). Capillary force and meniscus areas were discussed in order to explain the influence of humidity on the friction force.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
• /
• 2002.05a
• /
• pp.310-316
• /
• 2002

In this study, the effects of oxide layer formed on the wear tracks of TiN coated silicon wafer on friction and wear characteristics were investigated. Silicon wafer was used for the substrate of coated disk specimens, which were prepared by depositing TiN coating with $1{\mu}m$ in coating thickness. AISI 52100 steel ball was used for the counterpart. The tests were performed both in air for forming oxide layer on the wear track and in nitrogen to avoid oxidation. This paper reports characterization of the oxide layer effects on friction and wear characteristics using X-ray diffraction (XRD). Auger electron spectroscopy (AES), scanning electron microscopy (SEM) and sliding tests.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
• /
• 2009.10a
• /
• pp.247-249
• /
• 2009

Electric pole construction of distribution place is mainly operated by excavation work using auger crane and backhoe. Even though construction quality is affected by electric pole construction method and amount of excavation, construction is operated by workers' convenience in most of construction place. Therefore, in this paper, we analyze and compare effectiveness of electric pole quality using auger crane and backhoe when mechanized excavation through displacement experience of electric pole with ground strength.

• Electrical & Electronic Materials
• /
• v.11 no.10
• /
• pp.66-71
• /
• 1998

Plasma polymerized hexamethyldisiloxane (PPHMDSO) thin films were produced using an electrode capacitively coupled apparatus. Fourier transform infrared spectroscopy analysis indicated that the thin film spectra are composed not only of the corresponding monomer bands but also of several new bands. Auger electron spectroscopy analysis indicated that the permeation depth of aluminum into the films is ca. 30nm when top electrode is deposited by evaporation aluminum. The increase of relative dielectric constant and decrease of dielectric loss tangent with the discharge power is originated from high cross-link of the films.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 1996.05a
• /
• pp.15-18
• /
• 1996

The elemental segregation in the sputter-deposited AgInSbTe recording thin films was studied by means of Auger electron spectroscopy and ESCA for the specimens of as-deposited and as heat-treated conditions. Auger electron spectroscopy and ESCA revealed an extremely thin layer of elemental inhomogeneity, especially for the silver, even in as-deposited condition. The chemical analysis results obtained in this alloy system are discussed in terms of process parameters and target microstructure.

• Tribology and Lubricants
• /
• v.24 no.6
• /
• pp.302-307
• /
• 2008

The running-in behaviour of the metal carbon coating (WC/C) was evaluated with regard to its applicability as wear-resistant coating for key components in engines. Reciprocating wear tests under lubricated condition employing an oscillating friction wear tester were performed to investigate the tribological behaviors of the coatings in ambient environment. Confocal microscopy and scanning electron microscopy were used to observe worn surfaces and the wear scars on the steel balls. Elemental composition of the coating and worn surfaces were characterized using Auger electron spectroscopy. The friction behavior of WC/C coating was comparable to common carbon-based coatings. Thin tribofilm was formed on the worn surface of the steel ball due to material transfer and tribochemical reaction whereas there was no evidence of tribofilm generation on the coating surface. indicating the chemical innertness of WC/C coating.

• Journal of the Korean Vacuum Society
• /
• v.11 no.3
• /
• pp.171-175
• /
• 2002

The change in work function was studied on Indium-Tin-Oxide(ITO) surface after O-plasma treatment using $\gamma$-Focused ion Beam($\gamma$-FIB). As the surface of ITO experienced more O-plasma treatment, both the surface resistivity and the work function got higher. Auger Electron Spectroscopy identified the increase of oxygen as well as the decrease of Sn. The rise of work function and surface resistivity is considered to be due to the change in oxygen and Sn on the surface of ITO.

• Journal of the Korean Vacuum Society
• /
• v.2 no.2
• /
• pp.145-151
• /
• 1993

Ultra High Vacuum chamber for surface analysis and a series of AES-LEED controllers for LEED optics was designed and constructed. Electron energy resolution of LEED optics was tested. On the basis of the layer by layer mode, thickness of evaporated Ni on Pt(111) was calculated from the Auger signal ratio.

• Journal of the Korean Vacuum Society
• /
• v.1 no.1
• /
• pp.100-105
• /
• 1992

Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS) analyses have been performed on double-structured Au/V and Au/Ti thin films after heat treatment at 500$^{\circ}$C in air. V- and Tiunderlays sandwiched between gold thin films and SiOz substrates form oxides on the free surface of gold films during the heat treatment. The chemical compositions of the oxides were identified as V205 and TiOz in Au/V and Au/Ti thin films, respectively.