Essays about: "röntgendiffraktion"

Showing result 21 - 25 of 28 essays containing the word röntgendiffraktion.

  1. 21. InP/Si Template for Photonic Application

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Niklas Larsson; [2015]
    Keywords : CELOG; CMP; Chemlox; Citric Acid; Sodium Hypochlorite; InP; CELOG; CMP; Chemlox; Citronsyra; Natrium Hypoklorit; InP;

    Abstract : In this work an epitaxial layer of Indium Phosphide (InP) has been grown on top of a silicon substrate using the Corrugated Epitaxial Lateral Overgrowth (CELOG) technique. The grown InP CELOG top layer typically has a poor surface roughness and planarity. Before this surface can be used for any processing it has to be smooth and planarized. READ MORE

  3. 22. Soil Analysis for samples from the hill-fort of Hedeby

    University essay from Stockholms universitet/Arkeologiska forskningslaboratoriet

    Author : Salim Al Razzaz; [2015]
    Keywords : Archaeological sciences; Soil analysis; Hedeby; Haithabu; XRD; XRF; FTIR; Iron Age; Hill fort; Laborativ arkeologi; jordanalys; Hedeby; Haithabu; Röntgenfluorescens; Röntgendiffraktion; Fourier transform infraröd; järnålder; fornborg;

    Abstract : Hedeby Hochburg, borgen i Hedeby, har fått förhållandevis lite uppmärksamhet, jämfört med själva samhället i Hedeby. Utgrävningen från 2012 har dock väckt ett intresse, med ett antal frågor som behöver besvaras. READ MORE

  4. 23. Effect of tungsten carbides properties of overlay welded WC/NiSiB composite coatings

    University essay from KTH/Industriell produktion

    Author : Richard Seger; [2014]
    Keywords : ;

    Abstract : To get a long life of a product which is subjected to heavy mechanical wear, materials with particularly good properties such as high hardness and the ability to resist high temperature is required. Tungsten carbide is a material which has these properties, but to manufacture large products for mining industry or agriculture entirely of this material is neither practical nor quite beneficial when the disadvantages of the materials such as brittleness, high weight and high price will have a major affect. READ MORE

  5. 24. Experimental Tools for Studies of Heterogeneous Catalysis - Development and Case Studies

    University essay from Lunds universitet/Fysiska institutionen

    Author : Jonas Evertsson; [2013]
    Keywords : X-ray Diffraction; PLIF; Planar Laser Induced Fluorescence; activity measurement; reactor; catalyst; catalytic processes; XRD; Mass spectrometry; Heterogeneous catalysis; Chemistry; Physics and Astronomy;

    Abstract : In this project four reactors for studies of heterogeneous catalysis have been developed. They were tested using case studies, especially concerning methane oxidation over palladium. The test measurements showed that the reactors work or would work very well after slight modifications. READ MORE

  6. 25. Weld optimization with new Low Temperature Transformation fillermaterials

    University essay from KTH/Industriell produktion

    Author : Gustav Schmidt; [2013]
    Keywords : ;

    Abstract : In this study, evaluation of typical weld geometry, residual stresses and fatigue properties of two new LTT consumables have been performed. The literature survey discusses the topics of LTT consumables regarding fatigue life, chemical composition, dilution, crack phenomena and fatigue crack repair, impact toughness, weld residuals stress and weldgeometry. READ MORE