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48 results for “scanning electron microscope”
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Research ArticleOpen accessIn the abstractDevelopment of Nanostructured Stress Free Pt-Rich FePt Films for Micro Electro Mechanical System ApplicationsT. M. Selvakumari, R. N. Emerson, S. GanesanProblem statement: The electroplating technique is especially interesting due to its low cost, high throughput and high quality of deposit. Magnetic thin films are extensively used in various electronic devices including high density recording media and Micro Electro Mechanical (MEMS) devices. So we examined FePt films and give good magnetic properties. Approach: The Pt-rich FePt alloys were electrodeposited galvanostatically by … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 6,683 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Performance of Uncoated Tungsten Carbide Insert in End Milling Titanium Alloy Ti-6Al 4V through Work Piece PreheatingL. Turnad Ginta, Mohd Amri Lajis, A.K.M. Nurul AminProblem statement: Titanium alloys have been used widely in the aerospace, chemical and petroleum industry because of their high specific strength, fracture resistance and superior resistance to corrosion. Titanium alloys have a very high strength-to-weight ratio making them very suitable for aircraft engines and airframe manufacture. Approach: The use of titanium alloys as engine component materials is due to their … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,898 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Film thickness on the Electrical and Structural Properties of CdS: In Thin FilmsShadia J. Ikhmayies, Riyad N. Ahmad-BitarPolycrystalline CdS:In thin films were prepared by the Spray Pyrolysis (SP) technique on glass substrates at a substrate temperature Ts= 490°C. The effect of film thickness on the electrical and structural properties of the films was investigated through the analysis of the I-V plots, x-ray diffraction spectra (XRD) and the scanning electron microscope (SEM) images. The conductivity of the films … …American Journal of Applied Sciences, Vol. 5, Issue 9 · 30 Sep 2008 · 6,910 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Processing on the Electrical Properties of Spray-Deposited SnO2:F Thin FilmsShadia J. Ikhmayies, Riyad N. Ahmad-BitarHighly transparent SnO2:F thin films were produced by the Spray Pyrolysis (SP) technique to be used as forcontacts in the home made CdS/CdTe solar cells. Films of thickness 100-200 nm were prepared at substrate temperatures in the range 380-480°C. To improve the electrical properties of the films, annealing in nitrogen atmosphere at 400°C and etching by HNO3 were tried. The … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 7,002 accessesView PDFCite
Research ArticleOpen accessIn the abstractShed Skin of Ophiophagus hannah: Structural Topography and In Vitro Permeation of Nicotine and PhenolA. Priprem, T. Pongjanyakul, C. Khamlert et al.Scales of the dorsal portions of shed skin of king cobras (Ophiophagus hannah) was used as the barrier membrane for in vitro permeation of nicotine and phenol at toxic or irritable concentration levels. The scales were placed between solutions of nicotine or phenol in a donor solution at pH 5.6 and a receptor solution at pH 7.4. Cumulative amounts of … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 6,735 accessesView PDFCite
Research ArticleOpen accessIn the abstractIR Laser Plasma Interaction with GlassRabia Qindeel, Noriah Bidin, Yaacob Mat DaudThe interaction of laser plasma with respect to glass surface is reported in this paper. A Q-switched Nd:YAG laser was used as ablation source. Glass material is utilized as target specimen. Aluminum plate is used as a rotating substrate. The dynamic expansion of the plasma was visualized by using CCD video camera and permanently recorded via image processing system. The … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 6,915 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Characterization of Clinker’s Microstructure at Different Temperature Zone during Cement ProductionMohd Sobri Idris, Khairul Nizar Ismail, Shamsul Baharin Jamaludin et al.Temperature is an important parameter for transformation of minerals in clinker during cement productions. It influences the formation of alite from belite during calcinations and clinkering processes. The result of microstructure shows that the formation of belite minerals started at temperature nearly 1200°C which is at calcinations zone temperature, followed by formation of α±-belite at higher temperature (around 1300°C), then … …American Journal of Applied Sciences, Vol. 4, Issue 8 · 31 Aug 2007 · 7,498 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Characterization of Al Bond Pad Surface Treatment in Electroless Nickel Immersion Gold (ENIG) DepositionM.K. Md Arshad, A. Jalar, I. Ahmad, G. OmarThis study reports a number of experiments that were designed to characterize aluminum bond pad surfaces prior to electroless nickel immersion gold (ENIG). In the ENIG process, aluminum bond pads need special treatment to achieve successful nickel deposition and provide reliable interconnection of under bump metallurgy in advanced packaging. During this treatment process, the aluminum pad was cleaned, activated and … …American Journal of Applied Sciences, Vol. 4, Issue 3 · 31 Mar 2007 · 7,722 accessesView PDFCite