نتایج جستجو برای: cu ti contact
تعداد نتایج: 255205 فیلتر نتایج به سال:
OBJECTIVE Fluorides can cause corrosion and degradation in mechanical properties of commonly used archwires by forming hydrofluoric acid HF and causing disruption of protective titanium oxide layer. Hence, the aim of this study was to assess the change in load deflection characteristics of Ni-Ti, Cu Ni-Ti, S.S, and β-Ti wires on immersing in fluoride mouth rinses of two types- Phosflur and neut...
Two-step thermal oxidation was proposed for Ti and Ti alloys as a surface-treatment process for preparing an anatase-containing TiO2 layer. This process consisted of treatment in a CO-containing atmosphere (first step) and subsequent treatment in air (second step). In this chapter, first, the current status of TiO2 coating onto Ti and Ti alloys for biomedical applications is reviewed; then our ...
Abstract The present work aims to produce Ti x Cu 100-x ( = 90, 80, 70, and 60) amorphous alloys by using high energy ball mill. microstructure possible formation of phases were characterized employing laser granulometry, scanning electron microscopy (SEM), transmission (TEM), X-ray diffraction (XRD). amorphous-crystalline transformation at temperatures was studied according differential calori...
Geochemical investigations have permitted the refinement of the environmental interpretation of the f-Member of the Qum formation, Central Basin, Iran, which has been established through detailed microfacies (MF) analysis. The analysis revealed that the f-Member carbonates consist of eight distinct microfacies designated by the letters A through H. On the basis of petrographic characteristi...
The first copper-doped titanium-based amine-dicarboxylate metal-organic framework was synthesized by the solvothermal approach in this article, with a Cu2+/Ti4+ ratio of 0.15 (15% Cu/Ti-MOFs). X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectra, N2 adsorption-desorption studies, and UV-Vis diffuse reflectance (UV-Vis DRS) were all used to identify crystalline ...
The Thermo-Calc™ program and TTTI3 database were used to predict the phases in Ti-Cu with 5, 25, 40 wt% Cu. Based on predicted results, experimental work was conducted alloys produced a button arc furnace, characterised as-cast annealed condition (900°C) followed by water quenching. Microstructures compositions determined using an electron probe micro-analyser, identified X-ray diffraction. cor...
الکتروانباشت یکی از روش های لایه نشانی است که امکان رشد لایه های آلیاژی، تک لایه و چند لایه ای را در شرایط طبیعی دما وفشار فراهم می کند. در این پروژه لایه های co-p و co به روش الکتروانباشت در دو مد chc و cha تحت پتانسیل ثابت در الکترولیت تک حمام بر روی زیرلایه های cu و ti انباشت شدند. به منظور تهیه ساختاری کریستالی برای لایه های مذکور از دو روش استفاده کردیم: 1) تغییر دادن محلول 2) حرارت دهی نم...
Due to the huge difference in thermophysical properties, it is difficult obtain a defect-free bonding interface between copper and steel. A Cu-Ni-Ti interlayer was added TiC-reinforced matrix composite coating Q235 steel this study improve its interfacial bond. The influence of on microstructure properties studied by characterizing microstructure, phase composition, wear resistance coatings. Bo...
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