Influence of TiC, TiN and TiC(N) additions on sintering and mechanical properties of injection moulded titanium based metal matrix composites

Abstract

Baykara, Tarık (Dogus Author)Titanium (Ti) matrix composites based on Ti and reinforced with TiN, TiC and TiCN particles, were processed following a powder injection molding route: mixing, preparation of feedstock, moulding, debinding and sintering for full densification. The Ti and ceramic powders were dry mixed and molded using a wax based binder. The critical powder loading for injection molding was 55 vol.-% for all samples. Binder debinding was performed using solvent and thermal methods. Following the debinding stage, the samples were sintered for full densification at 1300 degrees C for 2 h in vacuum. Metallographic studies were conducted to investigate densification and the corresponding microstructural changes. The sintered samples were characterized by measuring tensile strength, elongation and hardness. All powders and fracture surfaces of sintered samples were also examined using scanning electron microscope techniques. The sintered densities of injection molded Ti and composites samples were changed with increasing amount of ceramic additions. The addition of TiN, TiC and TiCN improves the densities, tensile strength and hardness

Application of U-FAST Technology in Sintering of Titanium Biomaterials

“…The density after sintering at 1050oC was 3.86 g/cm 3 , thus not been studied. The obtained values are summarized in Table 1.…”

“…Hard ceramic reinforcement phases in the form of fiber or powders, e.g. SiC, TiC, Al 2 O 3 , TiB 2 , are often added to the metallic titanium matrix for this purpose [1][2][3][4][5][6][7].…”

Material characterization and unconventional machining on synthesized Niobium metal matrix

“…Due to its excellent properties, nickel alloys were used in various fields namely nuclear power plant, oil refinery plant, marine and aerospace Nickel based alloys have good thermal conductivity, corrosion resistance and wear resistance. The powder metallurgy technique was used to fabricate many components with different shape and size [4][5][6][7][8]. The material properties and structure was most affected by reinforcement particles [9].…”

Application of U-FAST Technology in Sintering of Titanium Biomaterials

“…Hard ceramic reinforcement phases in the form of fiber or powders, e.g. SiC, TiC, Al2O 3 , TiB 2 , are often added to the metallic titanium matrix for this purpose [1][2][3][4][5][6][7]. The preliminary studies of titanium composites reinforced with…”