Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Durchstrahlungselektronenmikroskopie"”.
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Microstructural and macroscopic aspects of the plasticity of complex metallic alloys
Complex metallic alloys (CMAs) represent a class of materials which are based on crystal structures with exceptionally large unit cells comprising up to more than a thousand atoms. As a result of the structural attributes of these phases, their plastic deformation behaviour features significant …
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Plastic behaviour of quasicrystals and related intermetallic phases
In the present work, the plasticity of quasicrystals, metallic glasses and structurally complex alloy phases was investigated. The concepts of plasticity for simple crystalline materials cannot be applied to these materials without substational modification. Plastic deformation experiments and …
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Structure property relationships in polyolefins
Changes in the amount of the rigid, semi-rigid, and soft fractions, chain dynamics, and domain thickness of isotactic polypropylene (iPP) were investigated as a function of temperature, storage temperature, storage time, draw ratio, drawing temperature, drawing rate, ethylene propylene rubber …
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Structural and optical properties of copper- and nickel-oxynitride films
In this work, the structural, optical and electrical properties of copper- and nickel-oxynitride films have been investigated. The films have been deposited onto glass and silicon substrates by means of reactive dc sputtering from a metallic target in an argon/oxygen and nitrogen gas mixture. …
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Quantitative TEM analysis of crystalline and amorphous GeTe-based chalcogenides
The present dissertation reports the results of investigations of the crystallization morphology in single and multi-layer Ge2Sb2Te5 (GST225) samples and the crystallization morphology and local structure in binary Ge53Te47 and quasibinary GeSb2Te4 (GST124) samples. The morphology and structure of …
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Ultra-precise measurement of optical aberrations for Sub-Ångström transmission electron microscopy
Quantitative investigations of material structures on an atomic scale by means of high-resolution transmission electron microscopy (HRTEM) impose not only extreme demands on the mechanic and electromagnetic stability of the applied instruments but require also their precise electron-optical …
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Reactive amphiphilic block copolymers for the preparation of hybrid inorganic/organic materials
In this thesis the synthesis of well-defined polystyrene-block-polyglycidol (PS-b-PG) block copolymers, their micelle formation and the use of these micelles for the preparation of hybrid inorganic/organic materials are described. The hybrid materials are used for patterning of highly ordered …