SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Almqvist Sverker) "

Sökning: WFRF:(Almqvist Sverker)

  • Resultat 1-10 av 40
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Almqvist, Nils, et al. (författare)
  • AFM and STM characterization of surfaces exposed to high flux deuterium plasma
  • 1995
  • Ingår i: Journal of Nuclear Materials. - : Elsevier BV. - 0022-3115 .- 1873-4820. ; 220-222:1-3, s. 917-921
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper reports the results of scanning tunneling (STM) and atomic force microscopy (AFM) studies of D+ irradiated graphite and graphite-silicon mixtures. The microscopes were used for studying surface topography and for measuring the surface roughness. The substrates were exposed at various temperatures (60 and 700°C) to different doses of deuterium ions in simulators of plasma - surface interactions and in the TEXTOR tokamak. Also nuclear reaction analysis (NRA) and Rutherford backscattering spectroscopy were applied for the qualitative and quantitative determination of surface composition. The initial stages of radiation damage, nanometer-sized bubbles/blisters, were found in plasma-eroded surfaces. These structures only appeared in the graphite phase on the multicomponent material. The microroughness of the surfaces was measured. We also used the AFM for probing the thickness of the plasma-modified layers. The results correlate with the presence of deuterium measured by NRA depth-profiling. Moreover, the AFM reveals the co-deposited layers formed on surfaces facing the tokamak plasma. The appearance of these layers is clearly correlated to the amount of co-deposited atoms.
  •  
2.
  • Almqvist, Nils, et al. (författare)
  • Imaging human erythrocyte spectrin with atomic force microscopy
  • 1994
  • Ingår i: Micron. - : Elsevier BV. - 0968-4328 .- 1878-4291. ; 25:3, s. 227-232
  • Tidskriftsartikel (refereegranskat)abstract
    • Isolated spectrin covalently attached to a surface in a liquid environment as well as dried on mica has been studied with a contact-mode atomic force microscope. Both pyramidal and conical-type cantilever tip facets were used in the AFM. Our images show structures and give dimensions that correlate well with previous structural studies using transmission electron microscopy.
  •  
3.
  • Almqvist, Nils, et al. (författare)
  • Roughness determination of plasma-modified surface layers with atomic force microscopy
  • 1995
  • Ingår i: Thin Solid Films. - 0040-6090 .- 1879-2731. ; 270:1-2, s. 426-430
  • Tidskriftsartikel (refereegranskat)abstract
    • Graphite surfaces exposed to the deuterium plasma in the TEXTOR tokamak were characterized in detail by means of scanning probe microscopy, ion beam analysis and colorimetry methods. The aim is to study the composition and structure of thin layer deposits formed on surfaces subjected to the tokamak plasma. The surface roughness was measured and parametrized in terms of fractal dimension and scaling constant. Several different methods for the fractal analysis of plasma-exposed surfaces have been critically evaluated. The main emphasis of this paper is on the correlation between surface roughness (fractal parameters), the amount of deposited atoms and the layer thickness.
  •  
4.
  • Almqvist, Nils, et al. (författare)
  • Scanning probe microscopy and thermo-mechanical characterization of silicon carbide composites
  • 1995
  • Ingår i: Fourth Euro-Ceramics. - : Gruppo Ed. Faenza Ed.. - 8881380072 ; , s. 361-368
  • Konferensbidrag (refereegranskat)abstract
    • series of SiC-based composites was obtained by sintering. Since such materials are considered for fusion applications, their thermal shock resistance and behaviour under deuterium irradiation are of primary interest. Extensive bulk and surface characterisation of pure and doped (AlN, TiB2, graphite) silicon carbides treated by a deuterium plasma was carried out. The change in surface structure following irradiation is addressed, and major factors influencing deuterium retention are discussed.
  •  
5.
  •  
6.
  •  
7.
  •  
8.
  •  
9.
  •  
10.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 40
Typ av publikation
rapport (27)
konferensbidrag (6)
tidskriftsartikel (6)
doktorsavhandling (1)
Typ av innehåll
övrigt vetenskapligt/konstnärligt (30)
refereegranskat (10)
Författare/redaktör
Almqvist, Sverker (31)
Hydén, Christer (10)
Risser, Ralf (8)
Varhelyi, Andras (7)
Almqvist, Nils (6)
Fredriksson, Sverker (6)
visa fler...
Hjälmdahl, Magnus (4)
Rubel, M (3)
Nygård, Magnus (3)
Nyberg, Johan (2)
Draskóczy, Magda (2)
Emmoth, B. (2)
Wienhold, P. (2)
Towliat, Mohsen (2)
Johnsson, Carl (2)
Ferm-Almqvist, Cecil ... (2)
Asp, Karl (2)
Falthin, Annika (2)
Mars, Annette (2)
Zadig, Sverker (2)
Kaufmann, Clemens (2)
Jonsson, Thomas (1)
Rubel, Marek (1)
Emmoth, Birger (1)
Fors, Carina, 1978- (1)
Anund, Anna (1)
Backman, Lars (1)
Strand, Niklas, 1981 ... (1)
Ahlström, Christer (1)
Andersson, Jan (1)
Nilsson, B (1)
Persson, Håkan (1)
Ericsson, Magnus (1)
Hjort, Mattias, 1972 ... (1)
Leijonhufvud, Susann ... (1)
Leijonhufvud, Susann ... (1)
Ilyinsky, L. (1)
Nannetti, C.A. (1)
Franconi, E. (1)
Larsson, Annika (1)
Kronborg, Peter (1)
Andersson Hultgren, ... (1)
Renner, Linda, 1980- (1)
Sandin, Jesper, 1975 ... (1)
Almqvist, Sverker, 1 ... (1)
Yahya, Mohammad-Reza (1)
Borgström Källén, Ca ... (1)
Magdeburg, Majvi (1)
Pettersson, Hans Eri ... (1)
Borgström Källén, Ca ... (1)
visa färre...
Lärosäte
Lunds universitet (28)
Luleå tekniska universitet (7)
VTI - Statens väg- och transportforskningsinstitut (4)
Göteborgs universitet (1)
Språk
Engelska (20)
Svenska (19)
Tyska (1)
Forskningsämne (UKÄ/SCB)
Teknik (28)
Naturvetenskap (6)
Samhällsvetenskap (3)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy