Et profilbilde

Professor
Vidar Folke Hansen { "honorific-suffix": "Professor", "fn": "Vidar Folke Hansen", "tel": "Telefon: 5183 2154", "email": "vidar.hansen@uis.no" }

Avdeling/enhet Det teknisk- naturvitenskapelige fakultet
Institutt/senter Institutt for maskin, bygg og materialteknologi
Rom KE E-233

Forskningsområder

Utvalgte publikasjoner

Pågående forskning

Arbeidserfaring

Vitenskapelige publikasjoner (fra CRISTin)

  • 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.
  • 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.
  • 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.
  • 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.
  • 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 ageing of Al-Zn-Mg-Zr 7000 series alloy. Materials Science and Technology. ISSN 0267-0836. Hefte 20. s. 185-193.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • Gjønnes, Jon; Hansen, Vidar; Waterloo, Grethe (2001). Nucleation and growth of hardening precipitates in 7xxx-alloys. 16 s.
  • Hansen, Vidar; Karlsen, Ole Bjørn; Gjønnes, Jon (2001). Utbredelse av soner og herdepartikler i 7108.70; transmisjonselektronmikroskopi og differensiell skanning kalorimetri. 8 s.
  • 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. Thelma, Nano2021 project; 2016-09-12 - 2016-09-16.
  • 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. 2016-08-28 - 2016-09-02.
  • 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. Norwegian Consulate General, Rice Univ, NTNU; 2014-10-11 - 2014-10-14.
  • Buxhuku, Mika; Hansen, Vidar; Gjønnes, Jon (2012). The geometry and measurement of integrated intensities in Rotation Electron Diffraction method. Scandem, University of Bergen; 2012-06-12 - 2012-06-15.
  • Buxhuku, Mika; Hansen, Vidar; Magnus, Sørby (2012). Electron and powder diffraction techniques for accurate structure factors. Norges forskningsråd, The Research Council of Norway; 2012-01-30 - 2012-01-31.
  • Buxhuku, Mika; Hansen, Vidar; Oleynikov, P.; Gjønnes, Jon (2012). Determination of crystallographic tilt axis in Rotation Electron Diffraction. Scandem; 2012-06-12 - 2012-06-15.
  • 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. 2012-08-12 - 2012-08-16.
  • Qureishy, Thomas; Hansen, Vidar; Karlsen, Ole Bjørn; Gunnæs, Anette Eleonora; Taftø, Johan (2012). Superstructures in Mg2Si1-xSnx. 2012-06-12 - 2012-06-15.
  • 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. the European Materials Research Society (E-MRS); 2012-05-14 - 2012-05-18.
  • Bording, Jan Kåre; Hansen, Vidar (2011). A Totally New Take On Heat Pumps. Efie.net. [Internett]; 2011-05-05.
  • Bording, Jan Kåre; Hansen, Vidar (2011). Forskere fra Universitetet i Stavanger Arbeidet med en varmepumpe som varer evig. Azocleantech. [Internett]; 2011-04-30.
  • Bording, Jan Kåre; Hansen, Vidar (2011). New heat pump could last 10,000 years, experts say. Environment news blog. [Internett]; 2011-04-27.
  • Bording, Jan Kåre; Hansen, Vidar (2011). Researchers Develop a Heat Pump That Can Last 10,000 Years. Zeitnews. [Internett]; 2011-05-01.
  • Bording, Jan Kåre; Hansen, Vidar (2011). Researchers claim that new heat pump can last almost forever?. Engineers Edge. [Internett]; 2011-04-29.
  • Bording, Jan Kåre; Hansen, Vidar (2011). Researchers from University of Stavanger Work on a Heat Pump that Lasts Forever. Azocleantech. [Internett]; 2011-04-30.
  • Bording, Jan Kåre; Hansen, Vidar (2011). This heat pump can last 10 000 years. Abovetopsecret. [Internett]; 2011-04-29.
  • Bording, Jan Kåre; Hansen, Vidar (2011). This heat pump can last 10 000 years. Scientific Computing. [Internett]; 2011-05-05.
  • Bording, Jan Kåre; Hansen, Vidar (2011). This heat pump can last 10000 years.... Fluid World. [Internett]; 2011-05-03.
  • Bording, Jan Kåre; Hansen, Vidar (2011). Wärmepumpen: Kältemittel bald überflüssig. Innovations Report. [Internett]; 2011-04-27.
  • Buxhuku, Mika; Karlsen, Ole Bjorn; Gjønnes, Jon; Gjønnes, Kjesti; Hansen, Vidar (2011). Accurate structure factors of skutterudites:Electron Diffraction Techniques.
  • Bording, Jan Kåre; Hansen, Vidar (2010). Denne varmepumpa kan vare i 10 000 år. forskning.no. [Internett]; 2010-12-23.
  • Bording, Jan Kåre; Hansen, Vidar (2010). Denne varmepumpa kan vare i 10000 år.
  • Bording, Jan Kåre; Hansen, Vidar (2010). Denne varmepumpa kan vare i 10000 år. [Avis]; 2010-12-15.
  • Bording, Jan Kåre; Hansen, Vidar (2010). Termoelektrisitet - en "ny type" varmepumpe. 2010-06-08.
  • Bording, Jan Kåre; Hansen, Vidar (2010). Varmepumpe for evigheten.
  • Bording, Jan Kåre; Hansen, Vidar (2010). Varmepumpe for evigheten Form og størrelse kan tilpasses etter behov. [Avis]; 2010-12-18.
  • Bording, Jan Kåre; Hansen, Vidar (2009). Improved thermoelectric materials through nanostructuring: implications for energy savings. 2009-06-15 - 2009-06-19.
  • Bording, Jan Kåre; Prytz, Øystein; Hansen, Vidar; Taftø, Johan (2009). Improved thermoelectric materials through nanostructuring: implications for energy savings. Norges Forskningsråd; 2009-06-16 - 2009-06-17.
  • 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. Norsk Fysisk Selskap; 2009-06-15.
  • 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. 2009-06-25 - 2009-06-26.
  • 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. 2008-05-21 - 2008-05-22.
  • Oddsen, Ingunn Cecilie; Hansen, Vidar; Kverneland, Atle; Gjønnes, Jon (2008). Phase transition in age-hardening Al-Zn-Mg alloys. 2008-06-02 - 2008-06-04.
  • 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. 2007-01-08 - 2007-01-11.
  • 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. 2006-08-06 - 2006-08-11.
  • 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. 2005-08-23 - 2005-08-31.
  • Hansen, Vidar (2004). Elektronmikroskopi ved HIS; Utrustning og aktiviteter. 2004-03-11.
  • 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. 2004-08-26 - 2004-08-31.
  • Kverneland, Atle; Hansen, Vidar; Vincent, Roger; Gjønnes, Jon (2004). Strukturmodeller for herdefasen etta merket-MgZn i 7xxx legeringer. 2004-05-05 - 2004-06-05.
  • Hansen, Vidar (2003). Fast stoff reaksjoner i aluminium, en norsk gullgruve. 2003-11-26.
  • 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. 2003-06-10 - 2003-06-13.
  • Knutsen, Turid; Hansen, Vidar; Håkansson, B; Gunnæs, Anette; Jørgensen, Sissel; Våland, Torstein; Taftø, Johan (2003). A Study of Amorphous and Crystalline Ni78Si8B14. 2003-06-10 - 2003-06-13.
  • 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. 2003-08-24 - 2003-08-29.
  • 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. 2003-08-24 - 2003-08-29.
  • 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. 2002-07-02 - 2002-07-05.
  • Gjønnes, Jon; Hansen, Vidar; Li, X.Z (2002). The collection of electron intensity data and its use in structure determination. 2002-08-04 - 2002-08-08.
  • Hansen, Vidar (2002). Tid-temperatur transformasjoner i 7xxx-aluminiumslegeringer. 2002-05-23 - 2002-05-24.
  • Hansen, Vidar; Larsen, Helge Bøvik (2002). Metallenes indre liv. Høgskolen i Stavanger Åpen fagdag; 2002-11-28.
  • 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. 2002-07-02 - 2002-07-05.
  • 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. 2002-06-12 - 2002-06-15.
  • Hansen, Vidar (2001). Strukturer og fasetransformasjoner i utherdbare industrilegeringer.
  • Hansen, Vidar (2001). Zones and Age Hardening Particles in the 7xxx-Alloy System. 2001-03-15.
  • Solberg, Jan Ketil; Hansen, Vidar (2001). Innføring i transmisjon elektronmikroskopi.
  • Hjuler, Morten Leth; Hansen, Vidar (2005). Characterization and distribution of different silica and clay phases in outcrop chalk.