• Cu Interlayer-Induced High-Strength Laser-Welded AISI 304 Steel-Niobium Joint 

      Shi, Mingxiao; Li, Yanjun; Ma, Xiang (Peer reviewed; Journal article, 2019)
      Joining niobium to austenitic stainless steel is necessary for the fabrication of particle accelerators. However, the brittle iron-niobium intermetallics formed in the joint significantly reduce the joint strength. Copper ...
    • Laser welding of niobium to AISI 304 steel using a copper interlayer 

      Zhao, Jian; Shi, Mingxiao; Li, Yanjun; Ma, Xiang; Fang, Zhenxing; Yan, Hua (Peer reviewed; Journal article, 2020)
      Cu interlayers with thicknesses of 1, 1.5, and 2 mm were used to join niobium and AISI 304 steel. Fractures occurred in the weld, the Nb base metal, and the unmelted Cu interlayer when the Cu interlayer thickness was 1, ...
    • Magnesiothermic Reduction of Silica: A Machine Learning Study 

      Tang, Kai; Rasouli, Azam; Safarian, Jafar; Ma, Xiang; Tranell, Maria Gabriella (Peer reviewed; Journal article, 2023)
      Fundamental studies have been carried out experimentally and theoretically on the magnesiothermic reduction of silica with different Mg/SiO2 molar ratios (1–4) in the temperature range of 1073 to 1373 K with different ...
    • Removal of Phosphorus in Metallurgical Silicon by Rare Earth Elements 

      Tang, Kai; Løvvik, Ole Martin; Safarian-Dastjerdi, Jafar; Ma, Xiang; Tangstad, Merete (Journal article; Peer reviewed, 2014)
      Removal of phosphorus in metallurgical silicon is one of the crucial steps for the production of solar grade Si feedstock. The possibility of doping rare earth elements for phosphorus removal has in this work been studied ...