Abstract
In this research, all the samples are prepared using the powder metallurgy technique by adding silver element and Zirconia ceramic material to the commercially pure titanium at a different weight percent of (10, 20 and 30) to investigate the effect of adding these materials to the CP-Ti on corrosion behavior and mechanical properties. There are two sets of each type of alloys Ti-Ag and Ti ZrO2. The Preparation process was by Weighing, Mixing and Homogenizing Powders by Ball Mill, compacting at 4 tons for 1 min. and Sintering at 700 and 900 °C for 2 hrs. under a controlled atmosphere. The corrosion results showed a good corrosion resistance increases with increasing the silver content as the corrosion rate would be the best in (30% Ag) content with(0.091 mpy) at sintering temperature of 700 °C. And with a sintering temperature of 900 °C, the best result was with (30% Ag) with (0.059) mpy. In the Ti-ZrO2 alloys, the best result was with the zirconia content of (30%ZrO2) when cooled in the air with (1.347) mpy at sintering temperature of 700 °C, this results obtained in Ringer’s solution. And microstructures analysis stated that at the silver and the Zirconia content of (10-20 wt%) single phase of (α- Ti alloy), as the silver and Zirconia content increased to (30% wt), in addition to (α-phase), (Ti2Ag) intermetallic compound developed in the silver alloy microstructure and (TiZr)3O intermetallic compound developed in the microstructure of Ti- Zirconia composites and the hardness test result best hardness of...
Highlights
Bimetallic elements are utilized for manufactured joints, manufactured bones, bone illustrations and pins, orthodontic lines, dental inserts, and maxillofacial illustrations and pins [1]
An elemental titanium powder utilized in preparing to implant alloys was from (Fluka company) and the elemental silver powder was from (Nanjing Nanotechnology) and the ceramic Zirconia powder was from (Honeywell Riedel-de Haën AG) and the properties of the powders used are shown in Table I, samples of (13mm diameter), using Powder Metallurgy technique
The addition of silver element led to the production of single-phase alloys with a high chance of producing an intermetallic compound which changes the chemical and physical properties of the alloys according to the silver content
Summary
Bimetallic elements are utilized for manufactured joints, manufactured bones, bone illustrations and pins, orthodontic lines, dental inserts, and maxillofacial illustrations and pins [1]. As far as organic responses, most utmost metallic elements come into the biotolerant element class, Ti is some of the time arranged as a bioinert element [6] This implies the surface of Ti has positive qualities as far as its response to natural tissues. As the centralization of silver or copper in the compounds expanded, the elasticity, yield quality, and hardness of the composites wound up higher than those of CP Ti, and the stretching of the combinations progressed toward becoming lower than that of CP Ti. Changes in the mechanical properties by alloying were viewed as brought about by strong arrangement fortifying of the α-phase and by precipitation of intermetallic compound. The aim of the present work is to improve the Ti-based alloy for biomedical applications can be summarized as Preparation of porous CP-Ti, (Ti-Ag) and (Ti-ZrO2) alloys with best properties by the powder metallurgy technique to use in medical applications, studying the effect of adding different weight percentages (10, 20 and 30) % of elemental Silver and Zirconia on the mechanical properties of the prepared alloys, investigated the effect of different sintering temperatures in each alloy, determining the corrosion resistance of the prepared alloys in body solution (Ringer’s solution) and study some of the characteristics of specimen alloys
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