Essays about: "surface porosity"

Showing result 16 - 20 of 63 essays containing the words surface porosity.

  1. 16. Cellulose nanocrystals functionalized cellulose acetate electrospun membranes for adsorption and separation of nanosized particles

    University essay from Luleå tekniska universitet/Materialvetenskap

    Author : José Ignacio Del Río De Vicente; [2021]
    Keywords : Electrospinning; Cellulose Nanocrystals; Filtration; Adsorption; Cellulose Acetate Fibers;

    Abstract : Filtration and separation technologies remain as one of the biggest challenges humanity currently faces. The separation of different elements such as bacteria, viruses, heavy metals, particles, and chemical agents require the development of multifunctional membranes. READ MORE

  3. 17. Erosion Behaviour of Thermal Barrier Coatings

    University essay from Linköpings universitet/Konstruktionsmaterial

    Author : Caroline Wännman; [2021]
    Keywords : erosion; TBC; APS; EB-PVD; PS-PVD; failure mechanisms;

    Abstract : Thermal barrier coatings (TBCs) are advanced material systems used in the hot sections of gas turbines. The TBCs are designed to provide insulation against hot gases by a ceramic top coat and to provide oxidation and corrosion resistance by a metallic bond coat. READ MORE

  4. 18. Blågröngrå system i kallt klimat

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Jennika Jädernäs; Erika Tjernberg; [2021]
    Keywords : Blågröngrå system; dagvattenhantering; regnbädd; skelettjord; kallt klimat; grön urban infrastruktur; klimatanpassning; ekosystemtjänster; gatugestaltning; landskapsarkitektur;

    Abstract : Det finns stora möjligheter och behov att kombinera urbaniseringens markanspråk med grön urban infrastruktur och i det arbetet säkra en hållbar dagvattenhantering. Att som landskapsarkitekt arbeta med detta är viktigt eftersom markanspråken ökar mängden hårdgjorda ytor i städer vilket samtidigt reducerar grön urban infrastruktur. READ MORE

  5. 19. Laser ablation of aluminium before welding : Effect of weld preparation on number and sizes of pores

    University essay from KTH/Materialvetenskap

    Author : Olivia Taivalkoski; [2021]
    Keywords : ;

    Abstract : Welding aluminium often results in porosity in the weld. One way to reduce porosity is by carful weld preparation and cleaning. In this master thesis report laser ablation was done on aluminium plates before welding to remove dirt and the surface oxide layer. READ MORE

  6. 20. Estimating active layer thickness at the high Arctic study site Zackenberg from remotely sensed ground subsidence

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Lotte Wendt; [2021]
    Keywords : active layer thickness; DInSAR; subsidence; permafrost; Zackenberg; CALM; Earth and Environmental Sciences;

    Abstract : The active layer thickness (ALT) is an indicator of permafrost thaw, which potentially leads to the release of large amounts of greenhouse gases under global warming, and thus could further amplify climate change. The thaw depth of the active layer also governs seasonal surface deformation, caused by the volume change between ice to water, which poses risks for slope stability and infrastructure foundations. READ MORE