Fabrication of Ti-Si intermetallic compound porous membrane using an in-situ reactive sintering process

摘要

A low-cost and effective in-situ reactive method to produce Ti-Si intermetallic compound porous membrane is achieved for the first time using titanium powders and quartz tube (SiO2) as raw materials. Ti-Si porous membrane with small pores was fabricated on the surface of Ti porous substrate. The pore size of Ti-Si porous membrane is less than 0.5 mu m with the thickness of (similar to)2 mu m. The Ti-Si intermetallic compound particles and nanopores of membrane on the substrate are well distributed, and a good metallurgy bonding between the particles of Ti-Si membrane and Ti substrate indicates an effective sintering process. The in-situ reactive sintering process was an effective technology for the fabrication of Ti-Si intermetallic compound porous membrane as well as the modification of the surface morphology of porous metals. (C) 2020 Elsevier B.V. All rights reserved.