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  • 1. Chastellain, M.
    et al.
    Petri, A.
    Gupta, Amita
    KTH, Tidigare Institutioner, Materialvetenskap.
    Rao, K. Venkat
    KTH, Tidigare Institutioner, Materialvetenskap.
    Hofmann, H.
    Superparamagnetic silica-iron oxide nanocomposites for application in hyperthermia2004Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 6, nr 4, s. 235-241Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Superparamagnetic iron oxide particles embedded in silica are studied for application in hyperthermia. The temperature increase is studied when submitting the samples to a weak alternating magnetic field. The influence of the iron oxide size distribution, saturation magnetization, out of phase susceptibility and anisotropy constant is discussed. A theoretical calculation of power loss is carried out and agrees with experimental data.

  • 2. Dadbakhsh, Sasan
    et al.
    Speirs, Mathew
    Kruth, Jean-Pierre
    Schrooten, Jan
    Luyten, Jan
    Van Humbeeck, Jan
    Effect of SLM Parameters on Transformation Temperatures of Shape Memory Nickel Titanium Parts2014Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 16, nr 9, s. 1140-1146Artikel i tidskrift (Refereegranskat)
  • 3. Fjellstedt, J.
    et al.
    Fredriksson, Hasse
    KTH, Tidigare Institutioner                               , Materialvetenskap.
    On the crystallization process of hypoeutectic Al-6 % Cu, unmodified and Sr-modified Al-2 % Si solidified alloys2003Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 5, nr 02-jan, s. 24-32Artikel i tidskrift (Refereegranskat)
  • 4. Hansson, K.
    et al.
    Fredriksson, Hasse
    KTH, Tidigare Institutioner                               , Materialvetenskap.
    On the behavior of hot crack formation during solidification in Fe-Ni alloys2003Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 5, nr 02-jan, s. 66-77Artikel i tidskrift (Refereegranskat)
  • 5. Jadhav, Suraj Dinkar
    et al.
    Dadbakhsh, Sasan
    KTH, Skolan för industriell teknik och management (ITM), Industriell produktion.
    Chen, Rong
    Shabadi, Rajashekhara
    Kruth, Jean-Pierre
    Van Humbeeck, Jan
    Vanmeensel, Kim
    Modification of Electrical and Mechanical Properties of Selective Laser-Melted CuCr0.3 Alloy Using Carbon Nanoparticles2019Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. n/a, nr n/a, artikel-id 1900946Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Herein, the influence of carbon nanoparticle addition on the selective laser melting (SLM) behavior and the resultant properties of gas-atomized CuCr0.3 powder are investigated. The carbon addition neither affects the powder flowability, nor its packing density, but it significantly enhances the optical absorption for infrared radiation. Despite the improved optical absorption of the powder bed after carbon addition, a comparable SLM behavior is observed for both virgin and carbon-mixed CuCr0.3 powders. Furthermore, the addition of carbon nanoparticles facilitates in situ deoxidation of copper and chromium oxides present in the CuCr0.3 powder. Accordingly, a larger fraction of chromium is obtained in its metallic form in the as-built carbon-mixed CuCr0.3 part. The presence of metallic chromium allows tailoring of the mechanical and electrical properties by postheat treatments (HTs). The best combination of mechanical (tensile strength of 298?±?19?MPa, yield strength of 208?±?18?MPa, ductility of 21?±?4%) and electrical (87?±?1% international annealed copper standards [% IACS]) properties is realized for the carbon-mixed CuCr0.3 alloy after a direct age hardening HT. The improvement in mechanical properties is attributed to the precipitation of nanometer-sized, coherent, and metallic chromium precipitates in the copper matrix.

  • 6. Kron, J.
    et al.
    Bellet, M.
    Ludwig, A.
    Wendt, J.
    Pustal, B.
    Fredriksson, Hasse
    KTH, Tidigare Institutioner                               , Materialvetenskap.
    Cooperation within MEBSP on the subject of air gap formation during a casting process2003Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 5, nr 02-jan, s. 78-79Artikel i tidskrift (Refereegranskat)
  • 7. Lacaze, J.
    et al.
    Greer, A. L.
    Howe, A.
    Ludwig, A.
    Fredriksson, Hasse
    KTH, Tidigare Institutioner                               , Materialvetenskap.
    Microstructure control by solidification processing - Outcome from a European thematic network2003Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 5, nr 02-jan, s. 11-17Artikel i tidskrift (Refereegranskat)
  • 8.
    Nygårds, Mikael
    et al.
    KTH, Tidigare Institutioner (före 2005), Hållfasthetslära.
    Gudmundson, Peter
    KTH, Tidigare Institutioner (före 2005), Hållfasthetslära.
    Role of colonies of large elliptical grains in high-strength steel2001Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 3, nr 1-2, s. 58-62Artikel i tidskrift (Refereegranskat)
  • 9. Valtorta, D.
    et al.
    Poulikakos, L.
    Connery, E.
    Partl, Manfred
    Road Engineering/Sealing Components Laboratory, EMPA Duebendorf, Switzerland.
    Mazza, E.
    Accelerated Aging of Bituminous Binders Using a High Frequency Torsional Rheometer2007Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 9, nr 1-2, s. 121-128Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A high frequency torsional rheometer (HFTR) is used to monitor the aging process of bituminous binders. The device measures the changes in the dynamic behavior of a rod performing torsional vibrations at a specified resonance frequency. The aging of a straight run bituminous binder 180/200 were characterized using the HFTR by quantifying the rheological changes that the material undergoes during exposure to air pressure and temperature in terms of the variation of the complex shear modulus. Experiments and numerical calculations were used to study the binder properties in the surface zone of the specimens that was directly exposed to heat and oxygen. Dynamic mechanical analysis (DMA) was used to measure the rheological properties of bituminous binders and asphalt mixes. The results shows that the top surface layers of the specimen were considerably stiffer than the internal layers which are not directly exposed to air.

  • 10.
    Vitos, Levente
    et al.
    KTH, Tidigare Institutioner, Materialvetenskap.
    Korzhavyi, Pavel A.
    KTH, Tidigare Institutioner, Materialvetenskap.
    Johansson, Börje
    KTH, Tidigare Institutioner, Materialvetenskap.
    Austenitic stainless steels from quantum mechanical calculations2004Ingår i: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 6, nr 4, s. 228-232Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Quantum mechanics is used to study the influence of the chemical composition on the elastic properties of austenitic stainless steels. Fe based alloys comprising approximately 15% Cr and 8% Ni are predicted to have the largest hardness among the usual austenitic steels, which, however, is associated with increased brittleness and susceptibility to various forms of localized corrosion. It is shown that few percent of additional Os or Ir to Fe15Cr8Ni alloy significantly improve on both of these shortcomings, without deteriorating the hardness.

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