The boronizing experiments on the surface of Ti-6Al-4V (TC4) titanium alloys were based on solid powder method. Different additives were added into the boronizing agent. The morphologies of surface layers on titanium alloys were observed in scanning electron microscopy (SEM). The phase compositions of boronized layers were analyzed by X-ray diffraction (XRD). The wear resistance properties of boronized TC4 were determined by the friction and wear testing machine. The results showed that all the boronized layers were composed of TiB2and TiB dual phases.When 5%Fe3O4was added into the boronizing agent, the boride layer contained more TiB2compound and was thicker than those with the addition of 5%Na2B4O7.

This work reported on exploring a low cost preparation technology for coated conductor. The epitaxial of La0.4Sr0.6TiO3 conductive buffer layer on NiW substrate was achieved by metal organic deposition. Excellent in-plane and out of plane alignment is confirmed via XRD. YBCO film was fabricated by electrophoretic deposition (EPD). We used buffered (LSTO) Ni-W substrate and Ni plate as cathode and anode respectively. The critical current density of YBCO coating is more than 1000A/cm2 (0T, 77K).