Korea Institute of Science and Technology

U & I Corporation

Yu-Chan Kim

Hyun-Kwang Seok

Eric Fleury

Ki-bae Kim

Do-hyang Kim

Byung-Joo Park

Ja-Kyo Koo

Jayamani Jayaraj

Seok-Jo Yang

Sung-Youn Cho

Jong-Tack Kim

Jin-young Choi

Kwang-Youn Kim

Ji-Young Byun

Hoon Yeub Jeong

Jun-Hyun Han

Dohyang Kim

Jayaraj Jayamani

Eun-Young Choi

Mee-soon Lee, Legal Representative

Kyeong-Ho Baik

Kyung-Hun Byun

Seung-Hee Han

Sung-Bai Lee

Jung-Gu Kim

Tae-Hong Lim

This invention relates to a biodegradable implant including magnesium, wherein the magnesium contains, as impurities, (i) manganese (Mn); and (ii) one selected from the group consisting of iron (Fe), nickel (Ni) and mixtures of iron (Fe) and nickel (Ni), wherein the impurities satisfy the following condition: 0&#x3c;(ii)/(i)&#x2264;5, and an amount of the impurities is 1 part by weight or less but exceeding 0 parts by weight based on 100 parts by weight of the magnesium, and to a method of manufacturing the same.

Biodegradable implant and method for manufacturing same

The present invention relates to a magnesium alloy having controlled corrosion resistance properties, which comprises magnesium (Mg) and an alloying element and includes a magnesium phase and a phase composed of magnesium and the alloying element, wherein the difference in electrical potential between the magnesium phase and the phase composed of magnesium and the alloying element is greater than 0 V but not greater than 0.2 V.

Magnesium alloy

Disclosed are a thermal spray coating material which greatly improves corrosion resistance, as compared to conventional AlOand YOcrystalline coatings and Al&#x2014;Y&#x2014;O and Al&#x2014;Zr&#x2014;O amorphous thermal spray coatings, a production method of the coating material, and a coating method using the same. The thermal spray coating material has a chemical formula of YZrO, where x ranges from 0.19 to 0.83, preferably from 0.35 to 0.69. Accordingly, it is possible to produce a coating material for use in a chamber of vacuum plasmas equipment or internal parts of the chamber can be produced, which improves the corrosion resistance of a protective coating film upon ceramic thermal spray coating and lengthens the lifespan of parts.

Multi-component thermal spray coating material and production method and coating method thereof

Disclosed are an apparatus and a method for plasma ion implantation of a solid element, which enable plasma ion implantation of a solid element. According to the apparatus and method, a sample is placed on a sample stage in a vacuum chamber, and the inside of the vacuum chamber is maintained as a vacuum state. And, gas is supplied in the vacuum chamber, a first pulsed DC power is applied to a magnetron sputtering source so as to generate plasma ions of a solid element. The plasma ions of a solid element sputtered from the source are implanted on the surface of the sample. The first power is a pulse DC power capable of applying a high power the moment a pulse is applied while maintaining low average power. And, simultaneously with the applying of the first pulse power, a second power may be supplied to the sample stage, which is a high negative voltage pulse accelerating plasma ions of a solid element to the sample and synchronized to the pulse DC power for magnetron sputtering source. And, inductively coupled plasma may be generated in the vacuum chamber via antenna so as to increase ionization rate of a solid element and lower operation pressure of magnetron sputtering source.

Method and apparatus for plasma ion implantation of solid element

The present invention relates to an amorphous alloy and a method for manufacturing thereof. The amorphous alloy according to the present invention includes has a chemical formula of Feioo-a-b-c-d-e-f-gCraMobCcBaYeMflg. Here, the M is at least one selected from a group consisting of Al, Co, N1 and Ni, and the I is at least one selected from a group consisting of Mn, P, S, and O as impurities. The a, b, c, d, e, f, and g are satisfied with the compositions of 16.0 wt %&#x2266;a&#x3c;22.0 wt %, 15.0 wt %&#x3c;b&#x2266;27.0 wt %, 2.0 wt %&#x2266;c&#x3c;3.5 wt %, 1.0 wt %&#x3c;d&#x2266;1.5 wt %, 1.0 wt %&#x3c;e&#x2266;3.5 wt %, 0.25 wt %&#x3c;f&#x2266;3.0 wt %, and 0.01 wt %&#x2266;g&#x3c;0.5 wt %, respectively.

Amorphous alloy and manufacturing method thereof

A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti +Y+Al+Co+the impurities=100.0 at %.

Metallic glass with nanometer-sized pores and method for manufacturing the same

A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti+Y+Al+Co+the impurities=100.0 at %.

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Seoul, South Korea

Yu-Chan Kim