Essays about: "nanocrystalline"

Showing result 1 - 5 of 9 essays containing the word nanocrystalline.

  1. 1. Corrosion Resistant Multi-Component Coatings for Hydrogen Fuel Cells

    University essay from Linköpings universitet/Tunnfilmsfysik

    Author : Jakob Steneteg; [2021]
    Keywords : Coatings; Hydrogen Fuel Cells; Multi-Component; High Entropy Alloys; Corrosion Resistance;

    Abstract : Multi-component coatings and high entropy alloys have in recent years attracted great interest for research, since they have shown to exhibit properties greater than the com- ponents of their parts. Today’s climate challenges requires transitioning from fossil fuels to renewable energy sources which demands use of new technology and new innovations. READ MORE

  3. 2. Ferroelectricity in nanocrystalline Hf0.5Zr0.5O2 thin films

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Lun Sang; [2018]
    Keywords : ferroelectricity; Hf0.5Zr0.5O2; GIXRD; XRR; Technology and Engineering; Physics and Astronomy;

    Abstract : Hafnium dioxide (HfO_2) based thin films doped with various dopants (Si, Ge, Al, Gd, Sr, Zr) have been found to exhibit ferroelectricity. These dopants were found to stabilize the III orthorhombic phase in the hafnium oxide based thin films. READ MORE

  4. 3. Evaluation of graphene as a transparent electrode in GaN-based LEDs by PECVD synthesis of graphene directly on GaN

    University essay from Umeå universitet/Institutionen för fysik

    Author : Linus Johansson; [2016]
    Keywords : PECVD; graphene; transparent electrode; gallium nitride; LED;

    Abstract : A transparent conductive electrode (TCE) is an important component in many of our modern optoelectronic devices like photovoltaics, light emitting diodes and touch screens. These devices require good current injection and spreading as well as a high transparency. READ MORE

  5. 4. Optimizing Transmission Kikuchi Diffraction for Analysing Grain Size and Orientation of Nanocrystalline Coatings

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Axel Tryblom; [2015]
    Keywords : TKD; t-EBSD; Kikuchi diffraction; coating; nanocrystalline; sample preparation; in situ lift-out; DualBeam; precision mechanical polishing; SEM;

    Abstract : In order to increase efficiency and lifetime of cutting tools it is typical to apply thin coatings by physical or chemical vapour deposition. Applying coatings on cutting tools has shown an increase in both efficiency and lifetime and are of large interest in further development. READ MORE

  6. 5. Thermal Stability of cubic and nanocrystalline arcevaporated TiCrAlN coatings

    University essay from Linköpings universitet/Nanostrukturerade material; Linköpings universitet/Tekniska högskolan

    Author : Hassan Saleem; [2014]
    Keywords : ;

    Abstract : (TixCryAlz)N coatings were deposited on WC-Co substrate using cathodic arc evaporation technique to investigate phase transformation, thermal stability, and high temperature mechanical properties. Two compositions Ti0.34Cr0.33Al0. READ MORE