نتایج جستجو برای: metal foil
تعداد نتایج: 201596 فیلتر نتایج به سال:
Roll-to-roll manufacturing of CdTe solar cells on flexible metal foil substrates is one of the most attractive options for low-cost photovoltaic module production. However, various efforts to grow CdTe solar cells on metal foil have resulted in low efficiencies. This is caused by the fact that the conventional device structure must be inverted, which imposes severe restrictions on device proces...
PURPOSE To compare the dimensional accuracy of three impression techniques- a separating foil impression, a custom tray impression, and a stock tray impression. MATERIALS AND METHODS A machined mandibular complete-arch metal model with special modifications served as a master cast. Three different impression techniques (n = 6 in each group) were performed with addition-cured silicon materials...
Shape- and size-controlled syntheses of metal nanoparticles have been achieved by galvanic displacement reaction between an aqueous solution of metal salt and Cu foil substrate. In particular, cubic and spheric nanoparticles of Pt (Au) with a fairly narrow size distribution were produced by reacting K(2)PtCl(4) (HAuCl(4)) with a Cu foil in an aqueous medium with and without CuCl(2) under differ...
We reported a simple and practical strategy that enables us to control the nucleation density and growth kinetics for graphene grown on the top-surface of metal substrate through gettering the carbon source on the backside of the flat Cu foil, during chemical vapor deposition (CVD). Hitherto, for CVD graphene grown on a flat Cu foil, merely topsurface-based growth mechanism has been emphasized,...
امروزه نیاز به مواد سبک وزن و فرایندهای نوین شکل دهی آن ها، در صنایع به ویژه صنعت خوردو، به دلیل نیاز به ذخیره انرژی، محافظت محیط زیست، افزایش ایمنی خودرو و بهبود عملکرد آن و فشار قابل توجه بازار جهانی برای کاهش قیمت ها، مشاهده می شود. آلیاژهای آلومینیوم به دلیل نسبت بالای استحکام به وزن، مقاومت خوردگی بالا و قابلیت جوشکاری عالی در صنعت مورد توجه می باشند. اما شکل پذیری این آلیاژها و کیفیت سطح ...
To practically apply vacuum insulation panels (VIPs) to buildings or home appliances, VIPs have demanded long-term lifespan with outstanding insulation performance. Service lives of VIPs enveloped with Al-foil and three-layer Al-metallized envelope are calculated. For Al-foil envelope, the service life is longer but edge conduction is too large compared with the Al-metallized envelope. To incre...
A NiS/Ni3S2 nanorod composite array that directly grows on Ni foil has been used as a counter electrode for dye-sensitized solar cells; these nickel sulfide nanorods exhibit excellent photo-electrical conversion efficiency when compared with conventional noble-metal Pt electrodes.
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید