vihansen

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Publications

  • Sayyar, Navid; Hansen, Vidar Folke; Tucho, Wakshum Mekonnen & Minde, Mona Wetrhus (2023). Directed laser deposition of super duplex stainless steel: Microstructure, texture evolution, and mechanical properties. Heliyon. ISSN 2405-8440. 9(4). doi: 10.1016/j.heliyon.2023.e15144. Full text in Research Archive
  • Delimitis, Andreas; Kyratsi, Theodora & Hansen, Vidar Folke (2022). Electron channeling studies of atom site preference and distribution in doped Mg2Si1-xSnx thermoelectrics. Materialia. ISSN 2589-1529. 24. doi: 10.1016/j.mtla.2022.101486. Full text in Research Archive
  • Tucho, Wakshum Mekonnen & Hansen, Vidar Folke (2021). Studies of Post-Fabrication Heat Treatment of L-PBF-Inconel 718: Effects of Hold Time on Microstructure, Annealing Twins, and Hardness. Metals. ISSN 2075-4701. 11(2), p. 1–20. doi: 10.3390/met11020266. Full text in Research Archive
  • Adasooriya, Mudiyan Nirosha Damayanthi; Tucho, Wakshum Mekonnen; Holm, Erlend; Årthun, Terje; Hansen, Vidar & Solheim, Karl Gunnar [Show all 7 contributors for this article] (2020). Effect of hydrogen on mechanical properties and fracture of martensitic carbon steel under quenched and tempered conditions. Materials Science & Engineering: A. ISSN 0921-5093. 803. doi: 10.1016/j.msea.2020.140495. Full text in Research Archive
  • Belsvik, Marius Aga; Tucho, Wakshum Mekonnen & Hansen, Vidar (2020). Microstructural studies of direct‑laser‑deposited stainless steel 316L‑Si on 316L base material. SN Applied Sciences. ISSN 2523-3963. 2. doi: 10.1007/s42452-020-03530-3.
  • Hansen, Vidar; Kosinskiy, Andrey & Taftø, Johan (2020). Distinguishing space groups by electron channelling: centrosymmetric full-Heusler or non-centrosymmetric half-Heusler? Acta Crystallographica Section A: Foundations and Advances. ISSN 2053-2733. A76, p. 211–213. doi: 10.1107/S2053273319016942. Full text in Research Archive
  • Delimitis, Andreas; Hansen, Vidar & Gjønnes, Jon (2019). Geometry determination and refinement in the rotation electron diffraction technique. Ultramicroscopy. ISSN 0304-3991. 201, p. 68–76. doi: 10.1016/j.ultramic.2019.02.011. Full text in Research Archive
  • Hansen, Vidar; Echevarria-Bonet, Cristina; Minde, Mona Wetrhus & Taftø, Johan (2018). Determination of atomic positions and polar direction in half-Heusler material Sb1- xSnxTi1-y-zHfyZrzCo using electron channeling. AIP Advances. ISSN 2158-3226. 8(12), p. 1–9. doi: 10.1063/1.5042816. Full text in Research Archive
  • Hjuler, M.Leth; Hansen, Vidar & Fabricius, Ida Lykke (2018). Interpretational challenges related to studies of chalk particle surfaces in scanning and transmission electron microscopy. Bulletin of the Geological Society of Denmark. ISSN 0011-6297. 66, p. 151–165.
  • Tucho, Wakshum Mekonnen & Hansen, Vidar (2018). Characterization of SLM-fabricated Inconel 718 after solid solution and precipitation hardening heat treatments. Journal of Materials Science. ISSN 0022-2461. 54(1), p. 823–839. doi: 10.1007/s10853-018-2851-x.
  • Tucho, Wakshum Mekonnen; Lysne, Vidar Hellandsjø; Austbø, Jon Håkon; Sjølyst-Kverneland, Atle & Hansen, Vidar (2018). Investigation of effects of process parameters on microstructure and hardness of SLM manufactured SS316L. Journal of Alloys and Compounds. ISSN 0925-8388. 740, p. 910–925. doi: 10.1016/j.jallcom.2018.01.098.
  • Guo, Kun; Hansen, Vidar; Li, Hailong & Yu, Zhixin (2018). Monodispersed nickel and cobalt nanoparticles in desulfurization of thiophene for in-situ upgrading of heavy crude oil. Fuel. ISSN 0016-2361. 211, p. 697–703. doi: 10.1016/j.fuel.2017.09.097.
  • Buxhuku, Mika; Hansen, Vidar & Gjønnes, Jon (2017). The measurement of intensities in the Rotation Electron Diffraction Technique. Micron. ISSN 0968-4328. 101, p. 103–107. doi: 10.1016/j.micron.2017.06.006.
  • Tucho, Wakshum Mekonnen; Cuvillier, Priscille; Sjølyst-Kverneland, Atle & Hansen, Vidar (2017). Microstructure and hardness studies of Inconel 718 manufactured by selective laser melting before and after solution heat treatment. Materials Science & Engineering: A. ISSN 0921-5093. 689, p. 220–232. doi: 10.1016/j.msea.2017.02.062.
  • Buxhuku, Mika; Hansen, Vidar; Oleynikov, Peter & Gjønnes, Jon (2013). The determination of rotation axis in the Rotation Electron Diffraction Technique. Microscopy and Microanalysis. ISSN 1431-9276. 19(5), p. 1276–1280. doi: 10.1017/S1431927613012749.
  • Sjølyst-Kverneland, Atle; Hansen, Vidar; Thorkildsen, Gunnar; Larsen, Helge Bøvik; Pattison, P & Li, X.Z. [Show all 7 contributors for this article] (2011). Transformations and structures in the Al-Zn-Mg alloy system: A diffraction study using synchrotron radiation and electron precession. Materials Science & Engineering: A. ISSN 0921-5093. 528(3), p. 880–887. doi: 10.1016/j.msea.2010.10.001.
  • Sjølyst-Kverneland, Atle; Hansen, Vidar; Thorkildsen, Gunnar; Larsen, Helge Bøvik; Pattison, Philip & Li, XZ [Show all 7 contributors for this article] (2010). Transformations and structures in the Al?Zn?Mg alloy system: A diffraction study using synchrotron radiation and electron precession. Materials Science & Engineering: A. ISSN 0921-5093. doi: 10.1016/j.msea.2010.10.001.
  • Haakenaasen, Randi; Selvig, Espen; Hadzialic, S; Skauli, Torbjørn; Hansen, Vidar & Tibballs, J.E. [Show all 8 contributors for this article] (2008). Nanowires in the CdHgTe material system. Journal of Electronic Materials. ISSN 0361-5235. 37(9), p. 1311–1317.
  • Selvig, Espen; Hadzialic, S; Skauli, Torbjørn; Steen, Harald; Hansen, Vidar & Trosdahl-Iversen, L (2006). Growth of HgTe nanowires. Physica scripta. Topical Issues. ISSN 0281-1847. 126, p. 115–120.
  • Kverneland, A.; Hansen, Vidar; Vincent, R.; Gjønnes, Kjersti & Gjønnes, Jon (2006). Structure analysis of embedded nano-sized particles by precession electron diffraction. eta '-precipitate in an Al-Zn-Mg alloy as example. Ultramicroscopy. ISSN 0304-3991. 106(106), p. 492–502.
  • Hansen, Vidar; Vevecka-Priftaj, A; Fjerdingen, J; Langsrud, Y & Gjønnes, Jon (2006). The influence of silicon on age hardening kinetics and phase precipitations in Al-Mg-Zn alloys. Materials Science Forum. ISSN 0255-5476. 519-521, p. 579–584.
  • Gjonnes, J.; Hansen, Vidar & Kverneland, Atle (2004). The precession technique in electron diffraction and its application to structure determination of nano-size precipitates in alloys. Microscopy and Microanalysis. ISSN 1431-9276. 10, p. 16–20.
  • Hansen, Vidar; Karlsen, Ole Bjørn; Langsrud, Yngve & Gjønnes, Jon (2004). Precipitates, zones and transitions during aging of Al-Zn-Mg-Zr7000series alloy. Materials Science and Technology. ISSN 0267-0836. 20, p. 185–193.
  • Hansen, Vidar; Karlsen, Ole Bjørn; Langsrud, Yngve & Gjønnes, Jon (2004). Precipitates, zones and transitions during ageing of Al-Zn-Mg-Zr 7000 series alloy. Materials Science and Technology. ISSN 0267-0836. p. 185–193.
  • Gjønnes, Jon; Hansen, Vidar & Kverneland, Atle (2004). The precession technique in electron diffraction and its application to structure determination of nano-size precipitates in alloys. Microscopy and Microanalysis. ISSN 1431-9276. 10, p. 16–20.
  • Gjønnes, Jon; Hansen, Vidar; Andersen, S.J.; Marioara, C.D. & Li, XZ (2003). Electron crystallography of aluminium alloy phases. ?. 218, p. 293–307.
  • Jiang, X.J.; Noble, B.; Hansen, Vidar & Tafto, Johan (2001). Influence of Zirconium and Copper on the Early Stages of Aging in Al-Zn-Mg Alloys. ?. 32A, p. 1063–1073.
  • Waterloo, Grethe; Hansen, Vidar; Gjønnes, Jon & Skjervold, Svein Roger (2001). Effect of predeformation and preaging at room temperature in Al-Zn-Mg-(Cu,Zr) alloys. Materials Science and Engineering. ISSN 0025-5416. p. 226–233.
  • Berg, Line; Gjønnes, Jon; Hansen, Vidar; Li, X.Z; Knutson-Wedel, Maria & Waterloo, Grethe [Show all 8 contributors for this article] (2001). GP-Zones in Al-Zn-Mg Alloys and Their Role in Artificial Aging. Acta Materialia. ISSN 1359-6454. 49(17), p. 3443–3451.
  • Burchardt, Trygve; Hansen, Vidar & Våland, Torstein (2001). Microstructure and catalytic activity towards the hydrogen evolution reaction of electrodeposited NiPx alloys. Electrochimica Acta. ISSN 0013-4686. 46(18), p. 2761–2766.
  • Wulff-Pedersen, Erik; Neumann, Else-Ragnhild; Burke, Ernst A. J.; Vannucci, Riccardo; Gjønnes, Jon & Hansen, Vidar (2000). Origin and structural character of Hauyne in spinel dunite xenoliths from La Palma, Canary Island. American Mineralogist. ISSN 0003-004X. 85, p. 1397–1405.

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  • Rai, Ayushi; Delimitis, Andreas & Hansen, Vidar Folke (2023). TEM investigations of thermochromic VO2 thin films for smart windows applications.
  • Khazeni, Dena & Hansen, Vidar Folke (2023). Comparative analysis of Co-Cr-Fe-Mo alloy fabricated by Laser Powder Bed Fusion and casting for dental and maxilla facial application .
  • Hansen, Vidar Folke & Minde, Mona Wetrhus (2023). Introduction to University of Stavanger & High resolution microscopy analysis of additively man- ufactured implant materials.
  • Delimitis, Andreas; Rai, Ayushi; Mesaritis, G.; Ioannou, Ioanna; Hansen, Vidar Folke & Kyratsi, Theodora (2022). Atomic site distributions in medium / high temperature range application thermoelectrics: an HRTEM and electron channeling study.
  • Rai, Ayushi; Hansen, Vidar Folke; Mihailescu, Cristian N. & Delimitis, Andreas (2022). Characterisation studies of thermochromic VO2 thin films for smart windows applications.
  • Rai, Ayushi; Mihailescu, Cristian N.; Hansen, Vidar Folke & Delimitis, Andreas (2022). Structural investigations of nanocrystalline VO2/Si and VO2/LSAT epilayers for thermochromic windows applications grown by pulsed laser deposition.
  • Delimitis, Andreas; Hansen, Vidar Folke; Symeou, Elli; Kyratsi, Theodora; Minde, Mona Wetrhus & Taftø, Johan (2019). DETERMINATION OF HOST AND DOPANT ION DISTRIBUTION IN MG2SI1-XSNX THERMOELECTRIC MATERIALS BY ELECTRON CHANNELING. Acta Crystallographica Section A: Foundations and Advances. ISSN 2053-2733. 75. doi: 10.1107/S2053273319092350.
  • Delimitis, Andreas; Hansen, Vidar Folke; Symeou, Elli; Kyratsi, Theodora; Minde, Mona Wetrhus & Taftø, Johan (2019). Determination of host and dopant ion distribution in Mg2Si1-xSnx thermoelectric materials by electron channeling.
  • Delimitis, Andreas; Gjønnes, Jon & Hansen, Vidar Folke (2019). Rotation Electron Diffraction for Structure Determination and Refinement: Applications in Nanocrystalline Thermoelectrics.
  • Delimitis, Andreas; Gjønnes, Jon & Hansen, Vidar Folke (2019). Refinement Approaches in the Diffraction Geometry of the Rotation Electron Diffraction Method.
  • Tofan, Raluca; Echevarria-Bonet, Cristina; Berland, Kristian; Schrade, Matthias; Sørby, Magnus Helgerud & Hauback, Bjørn Christian [Show all 10 contributors for this article] (2016). The effect of spark plasma sintering on structure and phase stability in half-Heusler thermoelectric alloys.
  • Tofan, Raluca; Echevarria-Bonet, Cristina; Berland, Kristian; Schrade, Matthias; Sørby, Magnus Helgerud & Hauback, Bjørn Christian [Show all 10 contributors for this article] (2016). Microstructural characterization of spark plasma sintered (X,X’)NiSn half‐Heusler alloys.
  • Song, Xin; Persson, Clas; Norby, Truls; Flage-Larsen, Espen; Karlsen, Ole Bjørn & Hansen, Vidar [Show all 15 contributors for this article] (2014). Conversion of Heat and Energy: Thermoelectrics.
  • Qureishy, Thomas; Hansen, Vidar; Karlsen, Ole Bjørn; Gunnæs, Anette Eleonora & Taftø, Johan (2012). Superstructures in Mg2Si1-xSnx.
  • Valset, Kjetil; Prytz, Øystein; Hansen, Vidar & Taftø, Johan (2012). Quantitative study of structure factors at large reciprocal vectors using convergent beam electron diffraction: Application to anharmonicity of the thermal motion in Mg2Si.
  • Løvvik, Ole Martin; Valset, Kjetil; Rauwel, Protima; Prytz, Øystein; Flage-Larsen, Espen & Song, Xin [Show all 11 contributors for this article] (2012). Thermoelectricity in Oslo.
  • Buxhuku, Mika; Hansen, Vidar & Gjønnes, Jon (2012). The geometry and measurement of integrated intensities in Rotation Electron Diffraction method.
  • Buxhuku, Mika; Hansen, Vidar; Oleynikov, P. & Gjønnes, Jon (2012). Determination of crystallographic tilt axis in Rotation Electron Diffraction.
  • Buxhuku, Mika; Hansen, Vidar & Magnus, Sørby (2012). Electron and powder diffraction techniques for accurate structure factors.
  • Buxhuku, Mika; Karlsen, Ole Bjorn; Gjønnes, Jon; Gjønnes, Kjesti & Hansen, Vidar (2011). Accurate structure factors of skutterudites:Electron Diffraction Techniques. Acta Crystallographica Section A: Foundations of Crystallography. ISSN 0108-7673. 67, p. 696–697.
  • Bording, Jan Kåre & Hansen, Vidar (2011). Forskere fra Universitetet i Stavanger Arbeidet med en varmepumpe som varer evig. [Internet]. Azocleantech.
  • Bording, Jan Kåre & Hansen, Vidar (2011). Wärmepumpen: Kältemittel bald überflüssig. [Internet]. Innovations Report.
  • Bording, Jan Kåre & Hansen, Vidar (2011). Researchers Develop a Heat Pump That Can Last 10,000 Years. [Internet]. Zeitnews.
  • Bording, Jan Kåre & Hansen, Vidar (2011). This heat pump can last 10 000 years. [Internet]. Scientific Computing.
  • Bording, Jan Kåre & Hansen, Vidar (2011). This heat pump can last 10000 years... [Internet]. Fluid World.
  • Bording, Jan Kåre & Hansen, Vidar (2011). A Totally New Take On Heat Pumps. [Internet]. Efie.net.
  • Bording, Jan Kåre & Hansen, Vidar (2011). Researchers claim that new heat pump can last almost forever? [Internet]. Engineers Edge.
  • Bording, Jan Kåre & Hansen, Vidar (2011). Researchers from University of Stavanger Work on a Heat Pump that Lasts Forever. [Internet]. Azocleantech.
  • Bording, Jan Kåre & Hansen, Vidar (2011). New heat pump could last 10,000 years, experts say. [Internet]. Environment news blog.
  • Bording, Jan Kåre & Hansen, Vidar (2011). This heat pump can last 10 000 years. [Internet]. Abovetopsecret.
  • Bording, Jan Kåre & Hansen, Vidar (2010). Denne varmepumpa kan vare i 10 000 år. [Internet]. forskning.no.
  • Bording, Jan Kåre & Hansen, Vidar (2010). Denne varmepumpa kan vare i 10000 år. UniverS : magasin for Universitetet i Stavanger. 4.
  • Bording, Jan Kåre & Hansen, Vidar (2010). Varmepumpe for evigheten. Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116. p. 7–8.
  • Bording, Jan Kåre & Hansen, Vidar (2010). Varmepumpe for evigheten Form og størrelse kan tilpasses etter behov.
  • Bording, Jan Kåre & Hansen, Vidar (2010). Denne varmepumpa kan vare i 10000 år.
  • Bording, Jan Kåre & Hansen, Vidar (2010). Termoelektrisitet - en "ny type" varmepumpe.
  • Hansen, Vidar; Oddsen, Ingunn Cecilie; Kverneland, Atle; Larsen, Helge Bøvik; Pattison, Philip & Thorkildsen, Gunnar [Show all 7 contributors for this article] (2009). Diffuse scattering from zones and particles in the Al-Zn-Mg alloy system.
  • Bording, Jan Kåre & Hansen, Vidar (2009). Improved thermoelectric materials through nanostructuring: implications for energy savings.
  • Böttger, Paul Heinrich Michael; Valset, Kjetil; Flage-Larsen, Espen; Prytz, Øystein; Bording, Jan Kåre & Karlsen, Ole Bjørn [Show all 9 contributors for this article] (2009). An overview of our basic and applied thermoelectric research activity.
  • Bording, Jan Kåre; Prytz, Øystein; Hansen, Vidar & Taftø, Johan (2009). Improved thermoelectric materials through nanostructuring: implications for energy savings.
  • Hansen, Vidar; Kverneland, Atle; Li, X.Z.; Thorkildsen, Gunnar; Larsen, Helge Bøvik & Gjønnes, Jon (2008). Elektronmikroskopi og synkrotronrøntgen diffraksjonsstudier av transformasjoner og strukturer i 7xxx-legeringer.
  • Oddsen, Ingunn Cecilie; Hansen, Vidar; Kverneland, Atle & Gjønnes, Jon (2008). Phase transition in age-hardening Al-Zn-Mg alloys.
  • Hansen, Vidar; Kverneland, Atle; Thorkildsen, Gunnar; Larsen, Helge Bøvik; Vincent, Roger & Gjønnes, Jon (2007). Structure analysis of the n'-precipitate in Al-Zn-Mg alloys by the precession technique in electron diffraction and synchrotron radiation.
  • Hansen, Vidar; Kverneland, Atle; Thorkildsen, Gunnar; Larsen, Helge Bøvik; Pattison, Philip & Gilmore, Cristopher [Show all 8 contributors for this article] (2006). Structure determination of nanosized semi-coherent Al-Mg-Zn precipitates by precession electron diffraction and synchrotron X-ray diffraction.
  • Hjuler, Morten Leth & Hansen, Vidar (2005). Characterization and distribution of different silica and clay phases in outcrop chalk.
  • Hansen, Vidar; Kverneland, Atle; Larsen, Helge Bøvik; Pattison, Philip; Vincent, Roger & Gjønnes, Jon (2005). Structure Determination of Embedded Precipitates by Precession Electron Diffraction and Synchrotron Radiation: A Comparison.
  • Hansen, Vidar (2004). Elektronmikroskopi ved HIS; Utrustning og aktiviteter.
  • Hansen, Vidar; Kverneland, Atle; Vincent, Roger; Li, X.Z.; Stiller, Krystyna & Gjønnes, Jon (2004). Precession electron diffraction, high-resolution microscopy and atom probe analysis of nano-sized precipitates in Al-Zn-Mg industrial alloys.
  • Kverneland, Atle; Hansen, Vidar; Vincent, Roger & Gjønnes, Jon (2004). Strukturmodeller for herdefasen etta merket-MgZn i 7xxx legeringer.
  • Kverneland, Atle; Hansen, Vidar; Gjønnes, Jon & Vincent, Roger (2003). Structure solution of the hardening etta prime precipitate in Al-Zn-Mg alloys by the precession technique in electron diffraction.
  • Hansen, Vidar (2003). Fast stoff reaksjoner i aluminium, en norsk gullgruve.
  • Kverneland, Atle; Gjønnes, Jon; Hansen, Vidar & Vincent, Roger (2003). Structure solution of the hardening n'-precipitate in Al-Mg-Zn alloys by the precession technique in electron diffraction.
  • Hansen, Vidar; Kverneland, Atle; Li, X.Z; Stiller, Krystyna; Vincent, Roger & Gjønnes, Kjersti [Show all 7 contributors for this article] (2003). Crystal structures along the transformation path during age hardening in Al-Zn-Mg alloys by high resolution electron microscopy, precession electron diffraction and atom probe analysis.
  • Knutsen, Turid; Hansen, Vidar; Håkansson, B; Gunnæs, Anette; Jørgensen, Sissel & Våland, Torstein [Show all 7 contributors for this article] (2003). A Study of Amorphous and Crystalline Ni78Si8B14.
  • Hansen, Vidar (2002). Tid-temperatur transformasjoner i 7xxx-aluminiumslegeringer.
  • Sørbrøden, Erik; Hansen, Vidar; Olsen, Arne; Holme, Børge & Taftø, Johan (2002). Imaging of hardening particles in an Al-Mg-Zn alloy using plasmon electron energy losses.
  • Gjønnes, Jon; Hansen, Vidar & Li, X.Z (2002). The collection of electron intensity data and its use in structure determination.
  • Gao, Robert Qiang; Stiller, Krystyna; Hansen, Vidar; Oskarsson, Anders & Danoix, Frederic (2002). Influence of Aging Conditions on the Microstructure and Tensile Strenght of Aluminium Alloy 6063.
  • Hansen, Vidar; Stiller, Krystyna; Waterloo, Grethe & Gjønnes, Jon (2002). Structures and Transformations During Artificial Aging of an Industrial 7xxx-Series Al-Zn-Mg-Zr Alloy.
  • Hansen, Vidar & Larsen, Helge Bøvik (2002). Metallenes indre liv.
  • Hansen, Vidar (2001). Zones and Age Hardening Particles in the 7xxx-Alloy System.
  • Hansen, Vidar (2001). Strukturer og fasetransformasjoner i utherdbare industrilegeringer.
  • Hansen, Vidar; Karlsen, Ole Bjørn & Gjønnes, Jon (2001). Utbredelse av soner og herdepartikler i 7108.70; transmisjonselektronmikroskopi og differensiell skanning kalorimetri.
  • Gjønnes, Jon; Hansen, Vidar & Waterloo, Grethe (2001). Nucleation and growth of hardening precipitates in 7xxx-alloys.
  • Solberg, Jan Ketil & Hansen, Vidar (2001). Innføring i transmisjon elektronmikroskopi. Institutt for materialteknologi og elektrokjemi, NTNU.

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Published Nov. 4, 2010 12:18 PM - Last modified May 24, 2013 6:48 PM

Projects

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