Search for dissertations about: "Si3N4"
Showing result 6 - 10 of 35 swedish dissertations containing the word Si3N4.
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6. Grain Morphology and Intergranular Structure of Si3N4 and Al2O3 Based Ceramics
Abstract : This thesis concerns factors controlling the grain morphology in Si3N4 and Al2O3 based ceramics. The microstructures of the ceramics were characterized by scanning electron microscopy in combination with quantitative microscopy and stereologic methods. READ MORE
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7. Microstructural characterization and hardening behavior of reactive magnetron sputtered TiN/Si₃N₄ multilayer thin films
Abstract : This licentiate thesis adds a new piece to the puzzle that describes how the microstructural characteristics influence the hardness behavior of a multilayer coating. It contains a presentation of the manufacturing and the subsequent characterization of multilayer thin films. READ MORE
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8. Grain growth by Ordered Coalescence of crystallites in Ceramics : Grain Growth Mechanisms, Microstructure Evolution and Sintering
Abstract : Grain growth and densification process play the two most crucial roles on the microstructure evolution and the achieved performances during sintering of ceramics. In this thesis, the grain growth of SrTiO3, BaTiO3-SrTiO3 solid solutions and Si3N4 ceramics during spark plasma sintering (SPS) were investigated by electron microscopy. READ MORE
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9. Silicon nitride-based materials for spinal and antipathogenic applications
Abstract : Silicon nitride (Si3N4) is a ceramic material that is well-established in industrial applications due to its stability in demanding environments. The mechanical properties and biocompatibility of the material have led to its approval for clinical use in spinal implants. READ MORE
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10. Integrated Nonlinear Optics in Silicon Nitride Waveguides
Abstract : Integrated optics platforms offer the possibility to implement compact photonic devices for nonlinear optics applications. Modern nanofabrication facilities allow thefabrication of sub-micron-sized waveguide geometries that confine light to reach very high optical intensities. READ MORE