- A Study of Electro-Discharge-Sintering of Ti-6Al-4V Spherical Powders Doped with Hydroxyapatite by Spex Milling and Its Consolidation Characteristics
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Y.J. Cho, Y.H. Kim, Y.H. Jo, M.J. Kim, H.S. Kim, S.W. Kim, J.H. Park, W.H. Lee
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J Korean Powder Metall Inst. 2013;20(5):376-381.
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DOI: https://doi.org/10.4150/KPMI.2013.20.5.376
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- Spherical Ti-6Al-4V powders in the size range of 250 and 300 µm were uniformly doped with nano-sized hydroxyapatite (HAp) powders by Spex milling process. A single pulse of 0.75-2.0 kJ/0.7 g of the Ti-6Al-4V powders doped with HAp from 300 mF capacitor was applied to produce fully porous and porous-surfaced Ti-6Al-4V implant compact by electro-discharge-sintering (EDS). The solid core was automatically formed in the center of the compact after discharge and porous layer consisted of particles connected in three dimensions by necks. The solid core increased with an increase in input energy. The compressive yield strength was in a range of 41 to 215 MPa and significantly depended on input energy. X-ray photoelectron spectroscopy and energy dispersive x-ray spectrometer were used to investigate the surface characteristics of the Ti-6Al-4V compact. Ti and O were the main constituents, with smaller amount of Ca and P. It was thus concluded that the porous-surfaced Ti-6Al-4V implant compacts doped with HAp can be efficiently produced by manipulating the milling and electro-discharge-sintering processes.
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Citations to this article as recorded by  - Effect of heat treatment on the microstructural and mechanical properties of Ti6Al4V-equine bone nanocomposites
Wonki Jeong, Se-Eun Shin, Hansol Son, Hyunjoo Choi
Materials Characterization.2021; 179: 111361. CrossRef
- Status and Prospect of Tungsten Resources and Tungsten Related Industries
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Han-Shin Choi, Y.H. Kim, J.K. Lee
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J Korean Powder Metall Inst. 2008;15(6):441-449.
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DOI: https://doi.org/10.4150/KPMI.2008.15.6.441
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206
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Citations to this article as recorded by - The Current Status and Securing Strategies of Core Mineral Tungsten Resources
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Journal of the Korean Society of Mineral and Energy Resources Engineers.2023; 60(5): 341. CrossRef - Industrial Supply Chain Trend of Domestic Tungsten
Joon-Woo Song, Sang-Hyun Lee, Hyun-Seon Hong, Hong-Yoon Kang, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2012; 19(1): 79. CrossRef
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