Browsing by Author "Doumanidis, C. C."

Now showing items 1-20 of 31

    • Article  

      Brownian-like kinematics of ball milling for particulate structural modeling 

      Doumanidis, C. C.; Kaabi, H. A. Al; Alzaabi, A. S. M.; Gunduz, I. E.; Rebholz, Claus; Doumanidis, C. C. (2016)
      Ball milling motion has been previously studied through computationally expensive, off-line experimental video processing and numerical simulations by the discrete element method. This research establishes a more efficient ...
    • Article  

      Exothermic reaction characteristics of continuously ball-milled Al/Ni powder compacts 

      Hadjiafxenti, A.; Gunduz, I. E.; Kyratsi, Theodora; Doumanidis, C. C.; Rebholz, Claus (2013)
      Self-propagating reactions in compacted pellets of continuously low-energy ball-milled aluminium (Al) and nickel (Ni) powders at a composition corresponding to AlNi3 were investigated. The formation of a bi-modal structure ...
    • Conference Object  

      Fabrication and characterization of nanoscale heating sources ("nanoheaters") for nanomanufacturing 

      Jogdand, H.; Gulsoy, G.; Ando, T.; Chen, J.; Doumanidis, C. C.; Zhiyong, G.; Rebholz, Claus; Wong, P. (Affiliation: Dept. of Mechanical Engineering, University of Massachusetts Lowell, Lowell, MA, United StatesAffiliation: Dept. of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, United StatesAffiliation: Dept. of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, CyprusAffiliation: Dept. of Chemical Engineering, University of Massachusetts Lowell, One University Ave., Lowell, MA 0185, United StatesAffiliation: Dept. of Mechanical Engineering, Tufts University, Medford, MA, United StatesCorrespondence Address: Jogdand, H.Dept. of Mechanical Engineering, University of Massachusetts Lowell, Lowell, MA, United States, 2008)
      Nanoheater systems based on the exothermic reaction between aluminum and nickel were developed. Multilayered and powder-based heterostructures were fabricated and characterized, before and after ignition experiments, for ...
    • Article  

      Fabrication of nanorods by metal evaporation inside the pores of ultra-thin porous alumina templates 

      Kokonou, M.; Rebholz, Claus; Giannakopoulos, K. P.; Doumanidis, C. C. (2007)
      Porous alumina has attracted a great deal of attention as a template material for the growth of nanowires and nanodots. Typically, the pores have a high aspect ratio, which forbids the use of evaporation techniques for ...
    • Article  

      Fabrication, characterization and applications of novel nanoheater structures 

      Gu, Z.; Cui, Q.; Chen, J.; Buckley, J.; Ando, T.; Erdeniz, D.; Wong, P.; Hadjiafxenti, A.; Epaminonda, P.; Gunduz, I. E.; Rebholz, Claus; Doumanidis, C. C. (2013)
      Nanoheaters are reactive nanostructures that can generate localized heat through controlled ignition. Besides the widely used nanofoil structure with multiple alternative Al-Ni layers, various new nanostructures have been ...
    • Article  

      Full length article: Mechanics and energetics modeling of ball-milled metal foil and particle structures 

      Aureli, Matteo; Doumanidis, C. C.; Gunduz, I. E.; Hussien, Aseel Gamal Suliman; Liao, Yiliang; Rebholz, Claus; Doumanidis, C. C. (2017)
      The reported research establishes a semi-analytical computational predictive model of fractal microstructure in ball-milled metal foils and powder particulates, with emphasis on its transformation mechanics via an energy-based ...
    • Article  

      Growth and characterization of ceria thin films and Ce-doped γ - Al 2 O 3 nanowires using sol-gel techniques 

      Gravani, S.; Polychronopoulou, K.; Stolojan, V.; Cui, Q.; Gibson, P. N.; Hinder, S. J.; Gu, Z.; Doumanidis, C. C.; Baker, M. A.; Rebholz, Claus (2010)
      γ - Al 2 O 3 is a well known catalyst support. The addition of Ce to γ - Al 2 O 3 is known to beneficially retard the phase transformation of γ - Al 2 O 3 to α - Al 2 O 3 and stabilize the γ-pore structure. In this ...
    • Article  

      In situ observation of rapid reactions in nanoscale Ni-Al multilayer foils using synchrotron radiation 

      Fadenberger, K.; Gunduz, Ibrahim Emre; Tsotsos, Chrysostomos; Kokonou, Maria; Gravani, S.; Brandstetter, Stefan; Bergamaschi, Anna; Schmitt, Bernd; Mayrhofer, Paul H.; Doumanidis, C. C.; Rebholz, Claus (2010)
      The observation of rapid reactions in nanoscale multilayers present challenges that require sophisticated analysis methods. We present high-resolution in situ x-ray diffraction analysis of reactions in nanoscale foils of ...
    • Article  

      The influence of structure on thermal behavior of reactive Al–Ni powder mixtures formed by ball milling 

      Hadjiafxenti, A.; Gunduz, I. E.; Tsotsos, C.; Kyratsi, Theodora; Aouadi, S. M.; Doumanidis, C. C.; Rebholz, Claus (2010)
      Ball milling (BM) was used to produce reactive Al–Ni powder mixtures that exhibit self-propagating exothermic reactions (SPER) for nano–micro heater applications. Powders with an Al–Ni molar ratio of 1:3 were milled, cold ...
    • Article  

      Investigations on the self propagating reactions of nickel and aluminum multilayered foils 

      Gunduz, Ibrahim Emre; Fadenberger, K.; Kokonou, Maria; Rebholz, Claus; Doumanidis, C. C. (2008)
      The self-propagating reaction of nickel-aluminum thin film multilayers with a bilayer thickness of 43 nm was investigated using high-speed optical camera and infrared thermometry. The results indicate a two-stage reaction ...
    • Article  

      Mechanics and energetics modeling of ball-milled metal foil and particle structures 

      Aureli, M.; Doumanidis, C. C.; Gunduz, I. E.; Hussien, A. G. S.; Liao, Y.; Rebholz, Claus; Doumanidis, C. C. (2017)
      The reported research establishes a semi-analytical computational predictive model of fractal microstructure in ball-milled metal foils and powder particulates, with emphasis on its transformation mechanics via an energy-based ...
    • Conference Object  

      Mechanics Science-Enabled Nanoheater Multi-Layer Materials Manufactured by Ball Milling 

      Farzanah, K. H. H.; Hassan, M. O. M.; Muhairi, R. A. S. Al; Rebholz, Claus; Gunduz, I. E.; Doumanidis, C. C. (Materials Research Society, 2017)
      This article reports investigation of the effects of high-rate stochastic micro-mechanics on the produced particulate size distribution during ball milling of reactive bimetallic foils (nanoheaters), by experimental and ...
    • Article  

      Miniature thermal matches: From nanoheaters to reactive fractals 

      Rebholz, Claus; Gunduz, I. E.; Ando, T.; Doumanidis, C. C. (2015)
      Fine thermal actuation by miniature heat sources enables applications from electronics fabrication to tumor cauterization. This paper introduces the concept of nanoheaters, i.e., reactive bimetallic material dots (0D), ...
    • Article  

      Modeling of the self-propagating reactions of nickel and aluminum multilayered foils 

      Gunduz, I. E.; Fadenberger, K.; Kokonou, M.; Rebholz, Claus; Doumanidis, C. C.; Ando, T. (2009)
      In this study, we performed simulations of self-propagating reactions of nanoscale nickel-aluminum multilayers using numerical methods. The model employs two-dimensional heat transfer equations coupled with heat generation ...
    • Article  

      Nanoporous activated carbon cloth as a versatile material for hydrogen adsorption, selective gas separation and electrochemical energy storage 

      Kostoglou, N.; Koczwara, C.; Prehal, C.; Terziyska, V.; Babic, B.; Matovic, B.; Constantinides, G.; Tampaxis, C.; Charalambopoulou, Georgia; Steriotis, T.; Hinder, S.; Baker, M. A.; Polychronopoulou, K.; Doumanidis, C. C.; Paris, O.; Mitterer, C.; Rebholz, Claus (2017)
      The efficient storage of energy combined with a minimum carbon footprint is still considered one of the major challenges towards the transition to a progressive, sustainable and environmental friendly society on a global ...
    • Article  

      Nanostructure, mechanical and tribological properties of reactive magnetron sputtered TiCx coatings 

      Polychronopoulou, K.; Rebholz, Claus; Baker, M. A.; Theodorou, L.; Demas, N. G.; Hinder, S. J.; Polycarpou, A. A.; Doumanidis, C. C.; Böbel, K. (2008)
      This study describes the correlation between microstructure, mechanical and tribological properties of TiCx coatings (with x being in the range of 0–1.4), deposited by reactive magnetron sputtering from a Ti target in ...
    • Article  

      Nanostructure, mechanical and tribological properties of reactive magnetron sputtered TiCx coatings 

      Polychronopoulou, K.; Rebholz, Claus; Baker, M. A.; Theodorou, L.; Demas, N. G.; Hinder, S. J.; Polycarpou, A. A.; Doumanidis, C. C.; Böbel, K. (2008)
      This study describes the correlation between microstructure, mechanical and tribological properties of TiCx coatings (with x being in the range of 0-1.4), deposited by reactive magnetron sputtering from a Ti target in ...
    • Article  

      Non-equilibrium microscale thermomechanical modeling of bimetallic particulate fractal structures during ball milling fabrication 

      Aureli, M.; Doumanidis, C. C.; Gunduz, I. E.; Hussien, A. G. S.; Liao, Y.; Jaffar, S. M.; Rebholz, Claus; Doumanidis, C. C. (2017)
      Nanostructured bimetallic reactive multilayers can be conveniently produced by ball milling of elemental powders. This research explores the non-equilibrium microscale conductive thermal transport in ball-milled particulate ...
    • Article  

      Novel combustion synthesis of carbon foam‑aluminum fluoride nanocomposite materials 

      Kostoglou, N.; Gunduz, I. Emre; Isik, T.; Ortalan, V.; Constantinides, G.; Kontos, A. G.; Steriotis, T.; Ryzhkov, V.; Bousser, E.; Matthews, A.; Doumanidis, C. C.; Mitterer, C.; Rebholz, Claus (2018)
      The facile, rapid and bulk production of composite materials consisting of carbon nanostructures doped with metal-based compounds has been a significant challenge for various research areas where such types of materials ...
    • Article  

      Numerical modeling of self-propagating reactions in Ru/Al nanoscale multilayer foils 

      Mücklich, F.; Woll, K.; Gunduz, I. E.; Pauly, C.; Doumanidis, C. C.; Son, S. F.; Rebholz, Claus (2015)
      The Ru/Al system integrates high energy density and high product ductility and serves as an alternative for utilization as nanoscale reactive multilayer. We present a modeling study that relates the Ru-Al phase transformations ...