Characterization of Ti-HA composite fabricated by mechanical alloying |
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| Affiliation: | 1. Materials and Metallurgical Engineering Department, Semnan University, Semnan, Iran;2. Department of Nano-materials & Nano-coatings, Institute for Color Science and Technology, 55 Vafamanesh Ave., Pasdaran St., 1668814811 Tehran, Iran;3. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;4. Department of Mechanical Engineering, Politecnico di Milano, Via La Masa, 1, 20156 Milan, Italy;5. Department of Biomedical Engineering, Biomaterials Science and Research, Islamic Azad University, Tehran, Iran;1. Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Unità di Ricerca del Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Università degli Studi di Cagliari, via Marengo 2, 09123 Cagliari, Italy;2. Dipartimento di Ingegneria “Enzo Ferrari”, Università degli Studi di Modena e Reggio Emilia, Via Vignolese 905, 41125 Modena, Italy;1. School of Materials Science and Engineering, Kunming University of Science and Technology, 650093, Kunming, China;2. Engineering Technology Research Center of Titanium Products and Application of Yunnan Province, 650093, Kunming, China;3. IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, D-01171, Dresden, Germany;4. Politehnica University of Timisoara, P-ta Victoriei 2, RO-300006, Timisoara, Romania;5. Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700, Leoben, Austria;6. Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700, Leoben, Austria;1. School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China;2. Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi 214122, China;3. School of Mechanical Technology, Wuxi Institute of Technology, Wuxi 214121, China |
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| Abstract: | Titanium (Ti) and its alloys possess suitable mechanical characteristics for utilization in orthopedic implants. However, their poor integrity with native tissues is a major challenge in their clinical application. Composite structures of Ti and hydroxyapatite (HA) can be used to promote the bone ingrowth and integration of the implant with the surrounding tissue. Here, we report the fabrication of Ti-HA nanocomposite powders using a high energy planetary ball mill. We investigate the effects of fabrication parameters including HA content (10–30% w/w), milling time (20 and 50 h), and HA particle size (50 nm and 15 μm) on the characteristics of the fabricated composites. In particular, we determine the samples hardness, sintering density, surface roughness and topography for different conditions. The results show that the addition of HA to Ti decreases the sintering density and enhances the surface hardness. Also, we observe a direct relationship between HA concentration in the Ti matrix and the surface roughness. |
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| Keywords: | Nanocomposites Titanium–hydroxyapatite Mechanical alloying Ball milling |
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