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Found 4 essays matching the above criteria.

  1. 1. Influence of Post-treatments on Corrosion Properties of 3D printed Metal Components for Bioprocessing Applications

    University essay from KTH/Materialvetenskap

    Author : Leyla Koort; [2023]
    Keywords : PBF-LB 316L; surface post-treatments; as-built; tumbling; Hirtisation; DLyte; electropolishing; chemical milling; pitting corrosion; CPT; cyclic potentiodynamic polarisation curves; immersion test in 1M NaCl and 1M NaOH;

    Abstract : Additive manufacturing (AM) has the potential to overtake the conventional production of pipe systems of stainless steel grade 316L intended for bioprocessing applications by utilising powder bed fusion laser beam (PBF-LB) technologies. However, challenges such as high surface roughness need to be overcome and corrosion properties improved to meet industry standards. READ MORE

  3. 2. Recycling methods for glass fibre-reinforced plastic polymers : Glass fibre composites in a circular economy?

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Hanna Karlsson; [2022]
    Keywords : Composites; Glass; Fibre; Reinforced; Recycling; Circular economy; Circularity; Reinforcement; Plastic; Polymer; End-of-life; Reuse; Waste; Materials Chemistry; Chemistry;

    Abstract : The reinforced composite industry is expanding. This raises the need for more sustainable resource use and waste management. A concept to combat both is circularity, creating a loop between the raw resources and the waste. Two important parts of circularity are recycling and reusing. READ MORE

  4. 3. Post-processing for roughness reduction of additive manufactured polyamide 12 using a fully automated chemical vapor technique - The effect on micro and macrolevel

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Ingrid Johansson; [2020]
    Keywords : Chemical post-processing; PostPro3D; selective laser sintering; surface roughness; polyamide 12; Kemisk efterbehandling; PostPro3D; selektiv lasersintring; ytojämnhet; polyamid 12;

    Abstract : Additive manufacturing has increased in popularity in recent years partly due to the possibilities of producing complex geometries in a rapid manner. Selective laser sintering (SLS) is a type of additive manufacturing technique that utilizes polymer powder and a layer-by-layer technique to build up the desired geometry. READ MORE

  5. 4. Odlingens och lagringens inverkan på utsädes grobarhet

    University essay from SLU/Dept. of Crop Science

    Author : Carl-Henrik Stenson; [2004]
    Keywords : lagring; grödor;

    Abstract : At seed-growing the aim is to produce a commodity with high germination capacity, good soundness and purity, and also slight admixture of seeds from other species. The capacity of germination and the vigour of the seeds may become impaired in consequence of mechanical damage, infection of diseases, growth of mould, attacks of vermin, high drying temperature, secret germination, sprouting in the ears etc. READ MORE