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Blar i NTNU Open på forfatter "Ciftja, Arjan"

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    • The effect of preliminary heat treatment on the durability of reaction bonded silicon nitride crucibles for solar cells applications 

      Hendawi, Rania Tayseer Atieh; Ciftja, Arjan; Stokkan, Gaute; Arnberg, Lars; Di Sabatino Lundberg, Marisa (Peer reviewed; Journal article, 2020)
      Silicon nitride crucibles have the potential to replace silica crucibles and reduce the cost of silicon crystallization because of their reusability potential. Till date, crucibles’ heat treatment before each use is a ...
    • Kinetics of silicon nitride coatings degradation and its influence on liquid infiltration in PV silicon crystallization processes 

      Hendawi, Rania Tayseer; Ciftja, Arjan; Arnberg, Lars; Di Sabatino Lundberg, Marisa (Peer reviewed; Journal article, 2021)
      Safe implementation of reusable crucibles in the silicon PV industry requires a thorough understanding of the reactions in the system to avoid liquid infiltration and crucible failure at high temperatures. Typically, an ...
    • Recycling of the Rare Earth Oxides from Spent Rechargeable Batteries Using Waste Metallurgical Slags 

      Tang, Kai; Ciftja, Arjan; Eijk, Casper van der; Wilson, Shawn C.; Tranell, Gabriella (Journal article; Peer reviewed, 2013)
      A high temperature process for recycling spent nickel-metal hydride rechargeable batteries has been recently developed at SINTEF/NTNU. The spent battery modules were first frozen with liquid nitrogen for the de-activation ...
    • Refining and Recycling of Silicon: A Review 

      Ciftja, Arjan (Research report, 2008)
      Silicon has a very broad spectrum of usage nowadays and it lies at the heart of much modern technology. It is the most abundant element in the earth’s crust after oxygen. Indeed, it’s use ranges from such bulk commodities ...
    • Solar silicon refining; Inclusions, settling, filtration, wetting 

      Ciftja, Arjan (Doktoravhandlinger ved NTNU, 1503-8181; 2009:103, Doctoral thesis, 2009)
      The main objective of the present work is the removal of inclusions from silicon scrap and metallurgical grade silicon. To reach this goal, two various routes are investigated. First, settling of SiC particles from molten ...
    • Wettability of Silicon with Refractory Materials: A Review 

      Ciftja, Arjan (Research report, 2008)
      The wettability of ceramics by liquid metals is a key fac¬tor in many fields of high temperature materials science and engineering. The wetting behavior of liquid-silicon/refractory-materials system is especially important ...

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