Search for dissertations about: "emissivity"
Showing result 1 - 5 of 28 swedish dissertations containing the word emissivity.
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1. Instrumentation and estimation for high temperature control
Abstract : Within a variety of industrially relevant high temperature production processes such as welding, heat treatment and metal deposition, the quality of the manufactured component is largely affected by how well parameters can be controlled during processing. These parameters might be, in the case of metal deposition, power input, material feed, or a parameter which is common for all of the aforementioned processes: material temperature. READ MORE
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2. Non-intrusive instrumentation and estimation : Applications for control of an additive manufacturing process
Abstract : For integration of additive manufacturing into industrial production, there is a need for capable yet robust automation solutions. Such solutions are to ensure consistent process outputs, both with regard to deposit geometry and material properties. READ MORE
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3. Infrared Emittance of Paper : Method Development, Measurements and Application
Abstract : Thermography is a non-destructive technique which uses infrared radiation to obtain the temperature distribution of an object. The technique is increasingly used in the pulp and paper industry. To convert the detected infrared radiation to a temperature, the emittance of the material must be known. READ MORE
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4. Image-based quantitative infrared analysis and microparticle characterisation for pulp and paper applications
Abstract : Measurements of process variations and particle morphology are widely employed in the pulp and paper industry. Two techniques with high potential, infrared thermography and microparticle characterisation, are mainly used qualitatively. READ MORE
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5. Chemical Vapor Depositionof Si and SiGe Films for High-Speed Bipolar Transistors
Abstract : This thesis deals with the main aspects in chemical vapordeposition (CVD) of silicon (Si) and silicon-germanium (Si1-xGex) films for high-speed bipolar transistors.In situdoping of polycrystalline silicon (poly-Si)using phosphine (PH3) and disilane (Si2H6) in a low-pressure CVD reactor was investigated toestablish a poly-Si emitter fabrication process. READ MORE