Production of Sintered Material used Titanium Fiber by Coiled Sheet Shaving Method

Titanium has many outstanding characteristics such as light weight with a specific gravity of 4.5, high specific tensile strength, low elasticity and thermal expansion coefficient, excellent corrosion-resistance, biocompatibility, and electrical conductivity and others. It is therefore used in a wide variety of industries such as aircraft, chemical, ships, dental, battery electrode material and others. In particular, in the use of titanium for battery electrode material, because the surface area of electrode material needs to be made large to promote high energy and chemical reaction, fiber shapes are ideal. However, there exists no efficient method for fabricating titanium fibers as yet. In this study, authors established the conditions for fabricating titanium fibers using hot water soluble resin coated coiled sheet shaving method. Using the titanium fibers obtained, we sintered secondarily processed non-woven material in a vacuum furnace, and confirmed that multiporous titanium fibers with a porosity of 75% to 88% can be produced.