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To circumvent fogging inside of the headlamp lens, an anti-fogging coating is indispensable. Conventionally, diverse surfactants have been adopted as substantial material for the anti-fogging coating. ...Conventionally, diverse surfactants have been adopted as substantial material for the anti-fogging coating. However, the usage of the surfactants causes undesirable side effect such as water mark arising from vapor condensation, which is an important issue that must be fully resolved. ...In this study, we developed an innovative anti-fogging coating material without using conventional surfactant. For this purpose, crosslinkable hydrophilic-hydrophobic random copolymer was utilized.

The friction force of the nano diamond polymer coating is 21% lower than graphite coating and 7% lower than MoS₂ coating. Furthermore, in contrast to the MoS₂ coating, the nano diamond polymer coating showed no wear mark after the test. ...The properties of coating were tested using Ball-on-Plate tribology test machine. As a result, the coating containing 1 wt% of nano diamond and 4 wt% of amino functional silane compared to the nano diamond contents showed the lowest fiction coefficient and wear rate. ...Furthermore, in contrast to the MoS₂ coating, the nano diamond polymer coating showed no wear mark after the test. Using the real engine test, the nano diamond polymer coating showed 1.8% decrease in friction force measured as FMEP compared to the MoS₂ coating which is on mass production and nano diamond polymer coating showed superior durability according to the full load and full speed engine test.

The Al valve spring retainer was fabricated by cold forging and coated with hard anodizing, DLC (diamond like coating), cold spray and thermal spray for better wear resistance and durability. We conclude that among these materials the DLC coating improves the wear resistance of Al valve spring retainer and has a sufficient durability after endurance testing. ...We conclude that among these materials the DLC coating improves the wear resistance of Al valve spring retainer and has a sufficient durability after endurance testing.

However the requirements on coating robustness have been increased as the tribological environments have become more severe by use of low viscosity oil or higher engine output. ...In order to obtain higher coating efficiency and improved wear resistance, 5∼9 at.% Si doped DLC (Si-DLC) coated tappet has been developed using PACVD process. ...It seems that Si suppresses a graphitization of DLC and thin SixOy film on coating surface acts as a barrier to oxidation or flash heat.

Moreover, manufacturing the single coated catalyst enables us to eliminate the unnecessary coating process which is essential to the conventional one. Our test results demonstrate that the developed catalyst has sufficient activity and durability of OSC to meet emission and OBD-II regulations.

The present study focused on CrN-Cu nanocoatings composed of nano-meter grains with CrN, Cr and Cu functioning low-friction, anti-wear and heat resistance. The coatings were synthesized by hybrid PVD including metal arc source, magentron sputter source and ion-gun source.

As the AVN display in the car interior becomes larger and located above the center fascia, the driver's visual visibility is becoming important. In addition, since an expensive touch sensor is installed, a transparent electrode cost reduction technology for a display touch sensor that can replace an indium material, which is an expensive rare metal, is required. In this paper, we developed new transparent electrode materials and manufacturing methods for the touch sensor film which light reflectance is low and flexible without a separate low-reflection multi-layer, so that the design freedom is high and the material cost is low. By optimizing the amount of fluorine doping ratio in tin oxide, excellent electrical conductivity and high optical transmittance are secured, and the surface reflectance is reduced by adjusting the diameter and length of the silver nanowire. As a result, it was shown that the AVN display image and font readability was improved.