TP39 : Investigating the effect of ZrC ceramic particles on the properties of titanium produced by spark plasma sintering method
Thesis > Central Library of Shahrood University > Chemical and Materials Engineering > MSc > 2022
Authors:
[Author], Mansoor Bozorg[Supervisor], maryam Shojaie Bahaabad[Supervisor]
Abstarct: Abstract The progress of science and technology has increased the demand of the market and industry for materials with combined properties. Titanium, as a mextal, alone has several properties such as corrosion resistance, high strength and low density, but at the same time, it has shown high reactivity when exposed to air oxygen. The addition of ceramic particles to titanium and the production of Titanium-Matrix Composites reinforced with ceramic particles have achieved these combined properties. Zirconium carbide was used in order to investigate the effect of ceramic particles as reinforcement on the resistance of titanium against oxidation and its mechanical and corrosion properties. Adding zirconium carbide ceramic particles to titanium was done by powder mextallurgy method. Titanium powder mixture and zirconium carbide were produced by solvent-baxsed mixing method. In this research, firstly, pure titanium sample and titanium-matrix composites with 5, 10, 15 and 20% by weight of zirconium carbide by spark plasma sintering method (SPS) at a temperature of 1300 degrees Celsius and a pressure of 40 MPa and holding time They were made in 5 minutes. In order to investigate the microstructure, mechanical properties and corrosion of composites made by SPS method, density measurement, XRD analysis, SEM analysis, hardness, oxidation and electrochemical tests were performed. The results showed that by increasing the weight percentage of zirconium carbide in the composites, the density decreased. Also, by adding zirconium carbide, the new phase of TiC and the solid solution phase (Ti, Zr) crystallized in the samples after SPS, which increased the hardness of composites containing zirconium carbide. Also, in the presence of low percentages of zirconium carbide ceramic additive, the oxidation resistance of these composites increased compared to pure titanium at two temperatures of 700 and 800 degrees Celsius and reduced the oxidation rate effectively. The best oxidation resistance performance belonged to the samples containing 5, 10 and 15% by weight of zirconium carbide, respectively, which were improved compared to pure titanium. Also, adding 5% by weight of zirconium carbide to titanium increased the corrosion resistance of this composite compared to the pure titanium sample.
Keywords:
#Keywords: Zirconium Carbide #Titanium Matrix Composites #Spark Plasma Sintering #SPS #Oxidation. Keeping place: Central Library of Shahrood University
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