Hyundai Motor Company

Hyundai Steel Company

Kia Motors Corporation

Pusan National University

Kwang Hoon Choi

In Woong Lyo

Woong Pyo Hong

Hyuk Kang

Bokyung Kim

Jiyoun Seo

Seung Woo Lee

Sang Jin Park

Hong Kil Baek

Yoon Suk Oh

Bo Kyung Kim

Chi Seung Lee

Hyun Dal Park

Jungyeon Park

Myung Yung Jeong

Jung Yeon Park

Sung Mo Park

Ji Youn Seo

Doo In Kim

The method for coating a separator for a fuel cell according to one form of the present disclosure includes the steps of: vaporizing a metal nitride precursor to obtain a precursor gas; introducing a metal nitride coating layer-forming gas containing the precursor gas and a reactive gas to a reaction chamber; applying a voltage to the reaction chamber so that the precursor gas and reactive gas may be converted into a plasma state, thereby forming a metal nitride coating layer on a substrate; introducing a carbon layer-forming gas containing a carbonaceous gas to the reaction chamber; and applying a voltage to the reaction chamber so that the carbonaceous gas may be converted into a plasma state, thereby forming a carbon coating layer on the metal nitride coating layer.

Coating method of separator for fuel cell and separator for fuel cell

Disclosed is a method and apparatus for forming a coating layer using a physical vapor deposition apparatus equipped with a sputtering apparatus and an arc ion plating apparatus, comprising: a first coating step of forming a Mo coating layer on a base material using a the sputtering apparatus and a Mo target and Ar gas; a nitrating step of forming a nitride film forming condition using an arc ion plating apparatus and Ar gas and Ngas; a second coating step of forming a nano composite coating layer of Cr&#x2014;Mo&#x2014;N using the Mo target and Ar gas of the sputtering apparatus and the Ar gas, Ngas and a Cr source of the arc ion plating apparatus at the same time; and a multi-coating step of forming a multi-layer having alternating Cr&#x2014;Mo&#x2014;N nano composite coating layers and Mo coating layers by revolving the base material around a central pivot.

Method and apparatus for forming coating layer with nano multi-layer

A method of measuring a friction coefficient of a surface of a specimen includes: obtaining surface information of the specimen by using an atomic force microscope (AFM); calculating data of a friction coefficient of the surface of the specimen by using the surface information of the specimen; and mapping the data of the friction coefficient of the specimen to an image. The method of measuring a friction coefficient of a surface of a specimen may prevent a probe part of an atomic force microscope from being worn out and secure high reliability of the friction coefficient value by correcting the atomic force microscope using a specimen to be actually measured and measuring a fiction coefficient at the same time.

Friction coefficient measuring method of surface of specimen

A thermal insulation coating composition includes a polymer having a C1-5 alkylene oxide repeat unit, aerogel and a water soluble binder.

Thermal insulation coating composition and thermal insulation coating layer

The present invention provides a porous polymer resin layer that comprises a binder resin with pores having a mean maximum diameter of about 0.5 mm to 1.6 mm; and aerogels dispersed in the binder resin. In particular, the porous polymer resin layer has a density of about 0.5 g/ml to 1.6 g/ml.

Porous polymer resin layer and method for manufacturing the same

Disclosed is a TiAgN coating layer, formed by subjecting a substrate having a surface roughness of about 0.05&#x2dc;0.1 &#x3bc;m to plasma coating by periodically turning on/off an Ag source while a Ti source is continuously turned on in a nitrogen gas atmosphere, a TiAgN coating method, and a TiAgN coating apparatus.

TiAgN coating layer, TiAgN coating method and TiAgN coating apparatus

Disclosed is a surface treatment method for producing a coating layer, which improves surface properties (e.g., low friction wear-resistance) of the coating layer at high temperature. The surface treatment method controls a process pressure during the formation of a coating layer to form a fine surface morphology with increased silver (Ag) content. The surface treatment method includes: heating a coated material in a chamber; removing foreign substances from the surface of the heated, coated material; forming a buffer layer on the surface of the coated material; and forming a coating layer on the buffer layer, wherein the process pressure is controlled during the formation of the coating layer to improve the surface properties at high temperatures.

Surface treatment method for coating layer

The present invention provides a low-friction coating layer for vehicle components comprising: a Ti layer on a surface of a base material; a TiN layer on the Ti layer surface; a TiAgN layer on the TiN layer surface; and an Ag layer transferred on the TiAgN layer surface, and a method for producing the same.

Growing community of inventors

Yongin-si, South Korea

Kwang Hoon Choi