نتایج جستجو برای: pure aluminum sheet

تعداد نتایج: 181705  

In this work, Boltzmann transform has been used to analyze the problem of freezing of pure Aluminum in semi-infinite domain. The uniqueness of solution (solidification front location) has been proved using the characteristics of the functions appeared in solution. The effect of density change on temperature distribution and errors resulting from ignoring this change have been investigated. The ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی موادو متالورژی 1387

امروزه به کار گیری آلیاژ سازی مکانیکی و استفاده از انرژی تولید شده در آسیاکاری در فراوری مواد و فرآیندهای متالورژیکی دارای سابقه جهل ساله بوده و تا کنون از این روش در مصارفی چون: سنتز مواد در دمای اتاق، سنتز فازهای غیر تعادلی، تولید مواد آمورف و تولید نانو مواد استفاده گردیده است. در این پژوهش هدف ایجاد پوشش کاربید تنگستن روی سطوح زیرلایه های آلومینیوم فلزی است. یکی از مزایای این روش این است که...

2001
M. B. de Rooij D. J. Schipper

In this study, the lump growth model, described in an accompanying paper (de Rooij and Schipper, 2000) is validated by means of experiments performed on a deepdrawing simulator. In the experiments, the influence of material and roughness properties of both sheet and tool on the galling behavior is determined. For these experiments, a deepdrawing simulator and a selection of aluminum and zinc co...

Journal: :ACS nano 2012
Po-Chun Hsu Hui Wu Thomas J Carney Matthew T McDowell Yuan Yang Erik C Garnett Michael Li Liangbing Hu Yi Cui

Copper nanofiber networks, which possess the advantages of low cost, moderate flexibility, small sheet resistance, and high transmittance, are one of the most promising candidates to replace indium tin oxide films as the premier transparent electrode. However, the chemical activity of copper nanofibers causes a substantial increase in the sheet resistance after thermal oxidation or chemical cor...

In this study, pure powders such as molybdenum, silicon, aluminum and titanium carbide were utilized to produce MoSi2 compound, MoSi2 /20 Vol % TiC composite, MoSi2-x Al alloyed compound and MoSi2-x Al/20 Vol % TiC alloyed composite. The initial powders were mixed in specified ratios, and then, were activated by mechanical milling. Milled powders were compacted, synthesized and sintered in the...

2011
S. P. Phang

This paper presents a direct quantitative comparison of the effectiveness of boron diffusion, phosphorus diffusion, and aluminum alloying in removing interstitial iron in crystalline silicon in the context of silicon solar cells. Phosphorus diffusion gettering was effective in removing more than 90% of the interstitial iron across a range of diffusion temperatures, sheet resistances, and iron d...

2003
Masahiro Kawahara

Aggregation and subsequent conformational change of Alzheimer’s β-amyloid protein (AβP) enhance its neurotoxicity. Therefore, factors that inhibit or promote conformational changes of AβP play crucial roles in the pathogenesis of Alzheimer’s disease (AD). Moreover, recent studies have suggested that a common mechanism is based on the diverse diseases termed “conformational diseases” including n...

Journal: :Arrus Journal of Engineering and Technology 2021

Electroplating uses aluminum material, where it’s easy to obtain, lighter, and cheaper than other metals. The research goal was determine the ability of electric current power (Al) coated with silver (Ag) by electroplating method, effect magnitude length time coating process took on weight Al Ag strength metal after tested using Brinnell test. method used is compare pure at different currents p...

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