Essays about: "surface porosity"

Showing result 11 - 15 of 63 essays containing the words surface porosity.

  1. 11. Characterization of Metal Powders in Electron Beam Powder Bed Fusion : Regarding particle size distribution of the finished part

    University essay from KTH/Materialvetenskap

    Author : Mattias Jerhamre Engström; Saman Sharif Hedås; [2022]
    Keywords : ;

    Abstract : As the manufacturing industry looks for better ways to create complex parts using sustainable and efficient methods, the additive manufacturing sector is taking a step forward. Additive manufacturing brings with it a large reduction in material used and the complex structures that can be created are not something to overlook. READ MORE

  3. 12. Broad ion beam cross-sectioning, microscopy, and image analysis of battery electrode morphology

    University essay from Lunds universitet/Industriell Produktion

    Author : Aamer Mohammed Saleem Siddiqui; [2022]
    Keywords : BIB; SEM; Li Plating; Particle cracking; Tortuosity; Image analysis; Technology and Engineering;

    Abstract : Lithium-ion batteries (LiB) are witnessing an increasing demand for electric vehicles. It provides a sustainable energy storage solution that is more efficient and ecofriendly than the fossil fuels. READ MORE

  4. 13. Development of a CFD Boundary Condition to Simulate a Perforated Surface

    University essay from Umeå universitet/Institutionen för fysik

    Author : Medet Kiflemariam; [2021]
    Keywords : Computational Fluid Dynamics; CFD; Boundary Condition; Bleed; Aerospace Engineering; Aeronautical Engineering; Physics;

    Abstract : In aircraft with jet propulsion engine intakes at supersonic speed, strong pressure waves referred to as shockwaves occur, which may interact with any present boundary layers along the intake surface. The adverse pressure gradients associated with Shock Wave-Boundary Layer Interaction (SWBLI) may cause boundary layer flow separation, which can result in disturbances of the flow that can be harmful to the device or decrease engine performance. READ MORE

  5. 14. Evaluation of electrospun lignin/polyvinyl alcohol/cellulose nanofiber mats

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Lisa Johansson Carne; [2021]
    Keywords : Electrospinning; lignin; polyvinyl alcohol; cellulose nanofiber; wound dressing;

    Abstract : Polymeric electrospun nanofiber mats have recently emerged as a promising alternative to conventional wound dressings for non-healing wounds. Its large surface area, porosity and scalability are only a few of the promising characteristics of electrospun nanofibers. READ MORE

  6. 15. Development of a porous material from cellulose nanofibrils

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Hedda Törneman; [2021]
    Keywords : CNF; cellulose nanofibrils; xerogels; aerogels; cross-linking; porous materials; polymers;

    Abstract : Cellulose nanofibrils are a biobased and renewable material with potential to be used in many different applications. Such applications include air filtration, absorption of liquids, and thermal insulation.  To be used for these applications the cellulose nanofibrils must form a porous and dry material. READ MORE