Browsing NTNU Open by Author "Hildal, Kjetil"

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    • Boron Removal from Silicon by Humidified Gases 

      Safarian-Dastjerdi, Jafar; Tang, Kai; Hildal, Kjetil; Tranell, Gabriella (Journal article; Peer reviewed, 2014)
      Boron (B) is one of the most problematic impurities to remove from metallurgical grade silicon in the production of more pure solar grade silicon (SoG-Si). In the present work, recent progresses in the application of ...

    • Mechanisms and Kinetics of Boron Removal from Silicon by Humidified Hydrogen 

      Safarian, Jafar; Tang, Kai; Olsen, Jan Erik; Andersson, Stefan; Tranell, Gabriella; Hildal, Kjetil (Journal article; Peer reviewed, 2016)
      The removal of boron from silicon by top blowing of humidified hydrogen has been studied in the present work through experimental work, thermodynamic calculations, computational fluid dynamic modeling, and quantum chemistry ...

    • Steam explosions during granulation of Si-rich alloys.: Effect of Al- and Ca-additions 

      Hildal, Kjetil (Dr.ingeniøravhandling, 0809-103X; 2002:43, Doctoral thesis, 2002)
      Steam explosions are possible during granulation of Si and FeSi75. These explosions are a great hazard, and must be avoided. Norwegian ferroalloy producers have initiated a research program to learn more about such violent ...