通过氮化~200nm厚的Ag-19at在氧化硅上制备了薄的封装银膜。% Ti 合金薄膜和 Ag(120 nm)/Ti(22 nm) 在 300–700 °C 的氨环境中。通过卢瑟福背向散射、扫描俄歇和二次离子质谱对封装过程进行了详细研究,结果表明在表面和 Ag-Ti/SiO2 界面处形成了氮化钛和氧化钛硅化物,分别。合金薄膜的四点探针分析表明电阻率受残余 Ti 浓度控制。在初始低 Ti 浓度的封装 Ag 合金膜中测量到约 4 μΩ cm 的电阻率值。退火的双层结构在 Ag 中具有最小的 Ti 积累,电阻率值与沉积的 Ag(~3 μΩ cm)相当。
Here we report on the structure and mechanical properties of low-alloyed Ti-based alloys containing Ag subjected to a dual-axial forging operation. The dependence of the microstructure and mechanical properties on the regimes of the dual-axial forging operation is studied for the Ti94Ag3Pd3 alloy having the optimal properties. The hemolytical activity of the Ti94Ag3Pd3 alloy was also investigated. The percent hemolysis induced by the sample after 5 h of incubation is much lower than that for the surgical titanium after 4 h of incubation. Doping of the Ti94Ag3Pd3 by a minor amount of nitrogen (N) improved its mechanical properties and decreased its elastic modulus (to 65 MPa), which is attractive for biological applications. (C) 2018 Elsevier B.V. All rights reserved.
Structure and properties of Ti-Ag alloys produced by powder metallurgy
作者:Barbara Szaraniec、Tomasz Goryczka
DOI:10.1016/j.jallcom.2017.03.155
日期:2017.6
Titanium alloys varying in the silver content (3.5 at.%; 5 at.%; 10 at.% or 20 at.%) were produced by means of powder metallurgy. The alloys displayed different phase structure. In alloys with the silver content of 3.5 at.% and 5 at.% the solid solution alpha-Ti was identified. In alloys with the higher silver content, i.e. 10 and 20 at.%, both the solid solution and the equilibrium phase Ti2Ag were observed, whereas in alloys with the highest silver content of 20 at.% there were also the equilibrium phase TiAg and fine silver identified. The Ti-20%Ag alloy had 80% lower compressive stress and 30% lower hardness compared to the Ti-10%Ag alloy. The alloy with 10% silver showed the best mechanical properties as well as the best surface wettability. (C) 2017 Elsevier B.V. All rights reserved.