Sökning: "Carbon nanotubes"

Visar resultat 6 - 10 av 176 avhandlingar innehållade orden Carbon nanotubes.

  1. 6. Mechanical behaviour of carbon nanostructures

    Författare :Henrik Jackman; Krister Svensson; Pavel Krakhmalev; Eleanor E. B. Campbell; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carbon nanotubes; CNT; multiwalled carbon nanotubes; MWCNT; rippling; buckling; mechanical properties; transmission electron microscopy; TEM; scanning electron microscopy; SEM; atomic force microscopy; AFM; Young’s modulus; in situ TEM; in situ SEM; Physics; Fysik;

    Sammanfattning : AbstractCarbon nanotubes (CNTs) have extraordinary mechanical and electrical properties. Together with their small dimensions and low density, they are attractive candidates for building blocks in future nanoelectromechanical systems and for many other applications. LÄS MER

  3. 7. Low temperature growth of carbon nanotubes

    Författare :Staffan Dittmer; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; acetylene; iron catalyst; low temperature growth; electric field alignment; chemical vapor deposition; tungsten electrodes; ethylene; on-clip growth; localised resistive heating; carbon nanotubes;

    Sammanfattning : .... LÄS MER

  4. 8. Growth study of multiwall carbon nanotubes by CVD methods

    Författare :Raluca Elena Morjan; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chemical vapor deposition; growth mechanism; carbon nanotubes; carbon feedstock; fullerenes; metal cataclyst; acetylene; dc-glow dis-charge plasma;

    Sammanfattning : .... LÄS MER

  5. 9. Studies of carbon nanomaterials based on fullerenes and carbon nanotubes

    Författare :Agnieszka Iwasiewicz-Wabnig; Bertil Sundqvist; Eleanor E.B. Campbell; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fullerenes; carbon nanotubes; fullerene polymers; intercalation compounds; high pressure; Raman spectroscopy; X-ray diffraction; atomic force microscopy; phase transitions; Material physics with surface physics; Materialfysik med ytfysik;

    Sammanfattning : Materials based on fullerenes and carbon nanotubes are very much different from most “traditional” materials, primarily because they are built from nanosized molecules with highly symmetry-dependent properties. Being the subject of a very active research field over the last twenty years, carbon nanostructures proved to be indeed extraordinary. LÄS MER

  7. 10. Single-Walled Carbon Nanotubes : A theoretical study of stability, growth and properties

    Författare :Daniel Hedman; Andreas Larsson; Sven Öberg; Esko I. Kauppinen; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Applied Physics; Tillämpad fysik;

    Sammanfattning : Since their discovery over 25 years ago, scientists have explored the remarkable properties of single-walled carbon nanotubes (SWCNTs) for use in high-tech materials and devices, such as strong light-weight composites, efficient electrical wires, supercapacitors and high-speed transistors. However, the mass production of such materials and devices is still limited by the capability of producing uniform high-quality SWCNTs. LÄS MER