Tantalum-45S5Bioglass composite foams prepared in thermal dealloying process |
| |
| Affiliation: | 1. Department of Metallurgical and Materials Engineering, Faculty of Engineering and Natural Sciences, Iskenderun technical University, 31200, Hatay, Turkey;2. Department of Materials Engineering, Faculty of Engineering and Architecture, Nev?ehir Hac? Bekta?-I Veli University, 50000 Nev?ehir, Turkey;3. Department of Engineering Science, Oxford Institute of Biomedical Engineering, University of Oxford, OX3 7DQ Oxford, UK;4. Department of Mechanical Engineering, Faculty of Engineering, Bart?n University, 74000 Bart?n, Turkey;1. Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea;2. Korea Electronic Material Co., Ltd, 690, Neungheodae-ro, Namdong-gu, Incheon 21694, Republic of Korea;1. Institute of Solid State Chemistry UB RAS, Ekaterinburg 620990, Russia;2. Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg 620002, Russia;3. Institute of Electrophysics UB RAS, Ekaterinburg 620016, Russia;4. State Research Institute of Chemistry and Technology of Organoelement Compounds, Moscow 105118, Russia;1. School of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu 215500, China;2. Division of Powder/Ceramics Research, Korea Institute of Materials Science, Changwon 641-831, Republic of Korea;3. Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65049, USA;4. Agency for Defense Development, Yuseong, P.O. box 35, Daejeon 34186, Republic of Korea;5. Institute of Science and technology for Ceramics, Faenza 64-48018, Italy;1. Department of Materials Science & Engineering, Hanyang University, Seoul 04763, Republic of Korea;2. Agency for Defense Development, Daejeon 34186, Republic of Korea;3. Department of Materials Science & Engineering, Seoul National University of Science & Technology, Seoul 01811, Republic of Korea |
| |
| Abstract: | This paper presents a promising method of tantalum – bioglass porous composites preparation by thermal dealloying. The first step of this study was the Ta-Bioglass-Mg nanopowder preparation using the mechanical alloying process in a Spex shaker type mill. The next step was the formation of the green compacts by cold pressing and then sintering and dealloying of magnesium. During the dealloying process, the magnesium diffuses from the middle to the surface of the sample, leaving open spaces surrounded by the composite scaffold. The porosity, pores morphology, structure, phase and chemical composition as well as cytotoxic activity have been investigated. The biocompatible Ta-2.5 wt% 45S5 Bioglass foam composites, of high porosity and wide pore size distribution have successfully been prepared as promising candidates for hard tissue implant applications. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
