Porous Ti/HA Biocomposites for Biomaterial Applications

Liu, Zhi Guang; Zhang, Yu Mei; Shi, Huan; Xu, Li; Chen, Yu Yong; Woo, Kee-Do

doi:10.4028/www.scientific.net/msf.614.73

Cited by 5 publications

References 8 publications

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Composites based on titanium alloy Ti–6Al–4V with an addition of inert ceramics and bioactive ceramics for medical applications fabricated by spark plasma sintering (SPS method)

Dudek

Klimas

2015

Materialwissenschaft Werkst

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The focus of the investigations presented in this paper is placed on metallic-ceramic composites based on a titanium alloy matrix (Ti-6Al-4V) with a 20 wt% and 40 wt% addition of aluminium oxide (Al 2 O 3 ), hydroxyapatite ceramics (Ca 10 (PO 4 ) 6 (OH) 2 ) or YSZ (zirconia stabilized with 8 wt% yttria Y 2 O 3 ) obtained using the spark plasma sintering method. The specimens were compressed at 35 MPa and sintered in a shielding gas (argon) medium at the temperature of 1000°C in an SPS HP 5 for 25 min. The obtained composites were subjected to microstructural analysis using light microscope and X-ray quality analysis using a D8 DISCOVER Bruker diffractometer. Hydrostatic weighing in deionized water according to the PN EN ISO 2738: 2001 standard was also used to evaluate the density, porosity and water absorption capacity. The topology of the surface of the metallic-ceramic composites was determined using a Hommel T1000 profilometer. The mechanical properties (microhardness) were measured using a hardness tester with Brinell indenter HBW 2.5/187.5. The resistance to wear was evaluated by means of a ball wear testing stand. Weability of the obtained biomaterials was evaluated by measurement of the contact angle Θ.Keywords: Ti-6Al-4V / inert and bioactive ceramics / spark plasma sintering (SPS) Gegenstand der vorliegenden Arbeit sind keramische Metallkomposite auf Basis der Titanlegierung Ti-6Al-4V mit 20 und 40% Gewicht-% Aluminiumoxid (Al 2 O 3 ), Hydroxylapatitkeramik (Ca 10 (PO 4 ) 6

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