Hopp til hovedinnhold

Vidar Folke Hansen

Professor

Det teknisk- naturvitenskapelige fakultet
Institutt for maskin, bygg og materialteknologi
KE E-233
Publications
  • Vitenskapelige publikasjoner
    • 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.

      Volum 11.

      Hefte 2.

      s.1-20.

      DOI: 10.3390/met11020266

    • 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.

      Volum 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.

      Volum A76.

      s.211-213.

      DOI: 10.1107/S2053273319016942

    • Adasooriya, Mudiyan Nirosha Damayanthi; Tucho, Wakshum Mekonnen; Holm, Erlend; Årthun, Terje; Hansen, Vidar; Solheim, Karl Gunnar; Hemmingsen, Tor

      (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.

      Volum 803.

      DOI: 10.1016/j.msea.2020.140495

    • Delimitis, Andreas; Hansen, Vidar; Gjønnes, Jon

      (2019)

      Geometry determination and refinement in the rotation electron diffraction technique.

      Ultramicroscopy

      ISSN 0304-3991.

      Volum 201.

      s.68-76.

      DOI: 10.1016/j.ultramic.2019.02.011

    • 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.

      Volum 740.

      s.910-925.

      DOI: 10.1016/j.jallcom.2018.01.098

    • 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.

      Volum 54.

      Hefte 1.

      s.823-839.

      DOI: 10.1007/s10853-018-2851-x

    • 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.

      Volum 211.

      s.697-703.

      DOI: 10.1016/j.fuel.2017.09.097

    • 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.

      Volum 66.

      s.151-165.

    • 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.

      Volum 8.

      Hefte 12.

      s.1-9.

      DOI: 10.1063/1.5042816

    • Buxhuku, Mika; Hansen, Vidar; Gjønnes, Jon

      (2017)

      The measurement of intensities in the Rotation Electron Diffraction Technique.

      Micron

      ISSN 0968-4328.

      Volum 101.

      s.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.

      Volum 689.

      s.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.

      Volum 19.

      Hefte 5.

      s.1276-1280.

      DOI: 10.1017/S1431927613012749

    • Sjølyst-Kverneland, Atle; Hansen, Vidar; Thorkildsen, Gunnar; Larsen, Helge Bøvik; Pattison, P; Li, X.Z.; Gjønnes, Jon

      (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.

      Volum 528.

      Hefte 3.

      s.880-887.

      DOI: 10.1016/j.msea.2010.10.001

    • Sjølyst-Kverneland, Atle; Hansen, Vidar; Thorkildsen, Gunnar; Larsen, Helge Bøvik; Pattison, Philip; Li, XZ; Gjønnes, Jon

      (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.; Steen, Harald; Foss, S.; Trosdahl-Iversen, Laila; Tafto, Johan; Halsall, M.; Orr, John

      (2008)

      Nanowires in the CdHgTe material system.

      Journal of Electronic Materials

      ISSN 0361-5235.

      Volum 37.

      Hefte 9.

      s.1311-1317.

    • 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.

      Volum 106.

      Hefte 106.

      s.492-502.

    • Selvig, Espen; Hadzialic, S; Skauli, Torbjørn; Steen, Harald; Hansen, Vidar; Trosdahl-Iversen, L; van Rheenen, Arthur D.; Lorentzen, T; Haakenaasen, Randi

      (2006)

      Growth of HgTe nanowires.

      Physica scripta. Topical Issues

      ISSN 0281-1847.

      Volum 126.

      s.115-120.

    • 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.

      Volum 519-521.

      s.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.

      Volum 10.

      s.16-20.

    • 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.

      Hefte 20.

      s.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.

      Volum 10.

      s.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.

      Volum 20.

      s.185-193.

    • Gjønnes, Jon; Hansen, Vidar; Andersen, S.J.; Marioara, C.D.; Li, XZ

      (2003)

      Electron crystallography of aluminium alloy phases.

      ?

      Volum 218.

      s.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.

      ?

      Volum 32A.

      s.1063-1073.

    • Berg, Line; Gjønnes, Jon; Hansen, Vidar; Li, X.Z; Knutson-Wedel, Maria; Waterloo, Grethe; Schryvers, D; Wallenberg, L.R.

      (2001)

      GP-Zones in Al-Zn-Mg Alloys and Their Role in Artificial Aging.

      Acta Materialia

      ISSN 1359-6454.

      Volum 49.

      Hefte 17.

      s.3443-3451.

    • 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.

      Hefte A303.

      s.226-233.

    • 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.

      Volum 46.

      Hefte 18.

      s.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.

      Volum 85.

      s.1397-1405.

  • Bøker og kapitler
    • 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.

  • Formidling
    • Delimitis, Andreas; Gjønnes, Jon; Hansen, Vidar Folke

      (2019)

      Refinement Approaches in the Diffraction Geometry of the Rotation Electron Diffraction Method.

    • 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.

      Volum 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.

    • Tofan, Raluca; Echevarria-Bonet, Cristina; Berland, Kristian; Schrade, Matthias; Sørby, Magnus Helgerud; Hauback, Bjørn Christian; Persson, Clas; Prytz, Øystein; Hansen, Vidar; Gunnæs, Anette Eleonora

      (2016)

      Microstructural characterization of spark plasma sintered (X,X’)NiSn half‐Heusler alloys.

    • Tofan, Raluca; Echevarria-Bonet, Cristina; Berland, Kristian; Schrade, Matthias; Sørby, Magnus Helgerud; Hauback, Bjørn Christian; Persson, Clas; Prytz, Øystein; Hansen, Vidar; Gunnæs, Anette Eleonora

      (2016)

      The effect of spark plasma sintering on structure and phase stability in half-Heusler thermoelectric alloys.

    • Song, Xin; Persson, Clas; Norby, Truls; Flage-Larsen, Espen; Karlsen, Ole Bjørn; Hansen, Vidar; Gunnæs, Anette Eleonora; Prytz, Øystein; Løvvik, Ole Martin; Finstad, Terje; Valset, Kjetil; Cui, Xuemei; Taftø, Johan; Fjeld, Harald; Hauback, Bjørn; Schrade, Matthias

      (2014)

      Conversion of Heat and Energy: Thermoelectrics.

    • Buxhuku, Mika; Hansen, Vidar; Magnus, Sørby

      (2012)

      Electron and powder diffraction techniques for accurate structure factors.

    • Qureishy, Thomas; Hansen, Vidar; Karlsen, Ole Bjørn; Gunnæs, Anette Eleonora; Taftø, Johan

      (2012)

      Superstructures in Mg2Si1-xSnx.

    • Buxhuku, Mika; Hansen, Vidar; Gjønnes, Jon

      (2012)

      The geometry and measurement of integrated intensities in Rotation Electron Diffraction method.

    • 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; Karlsen, Ole Bjørn; Bording, Jan Kåre; Hansen, Vidar; Norby, Truls; Finstad, Terje; Taftø, Johan

      (2012)

      Thermoelectricity in Oslo.

    • Buxhuku, Mika; Hansen, Vidar; Oleynikov, P.; Gjønnes, Jon

      (2012)

      Determination of crystallographic tilt axis in Rotation Electron Diffraction.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      New heat pump could last 10,000 years, experts say.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      Wärmepumpen: Kältemittel bald überflüssig.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      This heat pump can last 10 000 years.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      Researchers claim that new heat pump can last almost forever?.

    • 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.

      Volum 67.

      s.696-697.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      Researchers Develop a Heat Pump That Can Last 10,000 Years.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      This heat pump can last 10000 years....

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      This heat pump can last 10 000 years.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      Forskere fra Universitetet i Stavanger Arbeidet med en varmepumpe som varer evig.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      Researchers from University of Stavanger Work on a Heat Pump that Lasts Forever.

    • Bording, Jan Kåre; Hansen, Vidar

      (2011)

      A Totally New Take On Heat Pumps.

    • Bording, Jan Kåre; Hansen, Vidar

      (2010)

      Denne varmepumpa kan vare i 10000 år.

      UniverS : magasin for Universitetet i Stavanger

      Volum 4.

    • Bording, Jan Kåre; Hansen, Vidar

      (2010)

      Denne varmepumpa kan vare i 10 000 år.

    • Bording, Jan Kåre; Hansen, Vidar

      (2010)

      Denne varmepumpa kan vare i 10000 år.

    • Bording, Jan Kåre; Hansen, Vidar

      (2010)

      Termoelektrisitet - en "ny type" varmepumpe.

    • Bording, Jan Kåre; Hansen, Vidar

      (2010)

      Varmepumpe for evigheten Form og størrelse kan tilpasses etter behov.

    • Bording, Jan Kåre; Hansen, Vidar

      (2010)

      Varmepumpe for evigheten.

      Aftenposten (morgenutg. : trykt utg.)

      ISSN 0804-3116.

      s.7-8.

    • Hansen, Vidar; Oddsen, Ingunn Cecilie; Kverneland, Atle; Larsen, Helge Bøvik; Pattison, Philip; Thorkildsen, Gunnar; Gjønnes, Jon

      (2009)

      Diffuse scattering from zones and particles in the Al-Zn-Mg alloy system.

    • Bording, Jan Kåre; Prytz, Øystein; Hansen, Vidar; Taftø, Johan

      (2009)

      Improved thermoelectric materials through nanostructuring: implications for energy savings.

    • 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; Løvvik, Ole Martin; Hansen, Vidar; Finstad, Terje; Taftø, Johan

      (2009)

      An overview of our basic and applied thermoelectric research activity.

    • 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; Vincent, Roger; Gjønnes, Jon

      (2006)

      Structure determination of nanosized semi-coherent Al-Mg-Zn precipitates by precession electron diffraction and synchrotron X-ray diffraction.

    • 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.

    • Kverneland, Atle; Hansen, Vidar; Vincent, Roger; Gjønnes, Jon

      (2004)

      Strukturmodeller for herdefasen etta merket-MgZn i 7xxx legeringer.

    • 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.

    • Hansen, Vidar

      (2004)

      Elektronmikroskopi ved HIS; Utrustning og aktiviteter.

    • Hansen, Vidar; Kverneland, Atle; Li, X.Z; Stiller, Krystyna; Vincent, Roger; Gjønnes, Kjersti; Gjønnes, Jon

      (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; Taftø, Johan

      (2003)

      A Study of Amorphous and Crystalline Ni78Si8B14.

    • 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.

    • 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.

    • Gjønnes, Jon; Hansen, Vidar; Li, X.Z

      (2002)

      The collection of electron intensity data and its use in structure determination.

    • Hansen, Vidar; Larsen, Helge Bøvik

      (2002)

      Metallenes indre liv.

    • 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

      (2002)

      Tid-temperatur transformasjoner i 7xxx-aluminiumslegeringer.

    • 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.

    • 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.

    • Hansen, Vidar

      (2001)

      Zones and Age Hardening Particles in the 7xxx-Alloy System.

    • Hansen, Vidar

      (2001)

      Strukturer og fasetransformasjoner i utherdbare industrilegeringer.

    • Solberg, Jan Ketil; Hansen, Vidar

      (2001)

      Innføring i transmisjon elektronmikroskopi.

  • Kunstnerisk produksjon
    • Hjuler, Morten Leth; Hansen, Vidar

      (2005)

      Characterization and distribution of different silica and clay phases in outcrop chalk.

  • Kommersialisering
  • Cristin hovedlogo, Cristin current research information system in Norway