Blar i NTNU Open på forfatter "Gökelma, Mertol"

Viser treff 1-8 av 8

    • A Method for Assessment of Recyclability of Aluminum from Incinerated Household Waste 

      Gökelma, Mertol; Meling, Ingrid; Soylu, Ece; Kvithyld, Anne; Tranell, Gabriella (Journal article; Peer reviewed, 2019)
      Aluminum is widely used in daily household consumable goods such as food and drink packaging materials, storage containers, etc. The disposal of such goods into household waste means that this waste stream contains a ...

    • Behavior of Al4C3 Particles During Flotation and Sedimentation in Aluminum Melts 

      Gökelma, Mertol; Aarnæs, Trygve Storm; Maier, Jürgen; F. Renkel, Maria; Ekstrøm, Kai Erik; Friedrich, Bernd; Tranell, Gabriella (Peer reviewed; Journal article, 2021)
      Al4C3 particles form during the primary production of aluminum via molten salt electrolysis due to the carbon solubility and direct contact between bath, metal, and carbon anodes. Additional Al4C3 may form during melt ...

    • Behaviour of Aluminium Carbide in Al-melts during Re-melting 

      Gökelma, Mertol; Aarnæs, Trygve Storm; Maier, Jürgen; Friedrich, Bernd; Tranell, Gabriella (Journal article; Peer reviewed, 2019)
      The presence of non-metallic inclusions in aluminium has become a more critical issue with increasing demands on surface quality and low final wall thicknesses of products. Aluminium carbide particles form during the primary ...

    • Characteristic properties and recyclability of the aluminium fraction of MSWI bottom ash 

      Gökelma, Mertol; Vallejo-Olivares, Alicia; Tranell, Gabriella (Peer reviewed; Journal article, 2021)
      The increasing use of aluminimum in packaging applications results in many different aluminium-based products ending up in consumer mixed-waste bins. This waste is typically incinerated, generating an aluminium-containing ...

    • Characteristics of TI6AL4V powders recycled from turnings via the HDH technique 

      Gökelma, Mertol; Celik, Dilara; Tazegul, Onur; Cimenoglu, Huseyin; Friedrich, Bernd (Journal article; Peer reviewed, 2018)
      The objective of this research is for Ti6Al4V alloy turnings, generated during the machining of implants, to produce powders for the fabrication of Ti base coating via the cold spray method. In order to decrease the cost ...

    • Compaction of aluminium foil and its effect on oxidation and recycling yield 

      Vallejo-Olivares, Alicia; Philipson, Harald; Gökelma, Mertol; Roven, Hans Jørgen; Furu, Trond; Kvithyld, Anne; Tranell, Gabriella (Peer reviewed; Journal article, 2021)
      One of the problems when recycling aluminium is its oxidation and consequent metal loss. This is especially critical for the thin sheet/foil materials used for food packaging applications. Compacting the scrap into briquettes ...

    • Shape Factor Effect on Inclusion Sedimentation in Aluminum Melts 

      Gökelma, Mertol; Einarsrud, Kristian Etienne; Tranell, Gabriella; Friedrich, Bernd (Journal article; Peer reviewed, 2020)
      The quality requirements of aluminum products are steadily increasing, and the presence of non-metallic inclusions have a large impact on the quality of aluminum products. Sedimentation is a widely applied technique to ...

    • The effect of thickness and compaction on the recovery of aluminium in recycling of foils in salt flux 

      Philipson, Harald (Master thesis, 2020)
      I Norge förbränns mer än 40 000 ton aluminiumförpackningar årligen. Återvinning av denna mängd aluminiumförpackningar skulle spara 1,5 TWh energi och hundratusentals ton av koldioxidutsläpp. Det mycket svårare att återvinna ...