Physics Department Projects (2019-2020)

  • Title of Project.                                                                                                                                                       
  • INVESTIGATION OF THERMAL CHARACTERISTICS OF CARBON NANOTUBES MEASUREMENT AND DEPENDENCE
  • PREPARED BY:
    Basira Haydar Hama.
  • SUPERVISED BY:
    Prof. Dr Azeez Abdullah Barzinjy
  • ABSTRACT
    The present article outlines the latest research on high carbon nanotubes (CNTs)
    thermal conductivities and their nanofluids. Because of their brilliant structure and small
    size, carbon nanotubes have thermal properties enabling them to be an ideal material in the
    investigation of thermal controlling, both on the micro- and the macro-scales and lowdimensional phonon physics researches. Depending on the process parameters used in
    CNTs synthesis, the thermal conduction properties are notably affected by the alteration of
    the diameter, the chirality, the length, and the quality of CNTs. This review elucidates in
    details the necessity of thermal conductivity on several factors including the aspect of
    tubes, number of defects, morphology, atomic arrangement and the occurrence of
    impurities. Besides these factors, the dependence of thermal conductivity on chirality and
    temperature is also discussed. Several experimental investigations and theoretical models
    to estimate the thermal conductivity of CNTs and their nanomaterial are also reviewed.
    This review also elucidates different models suggested by researchers for estimating
    properties of CNT-based nanofluids.
    Key Words: Carbon nanotubes, Thermal conductivity, CNT-nanofluids, Thermal
    conductivity measurement, Theoretical models.

 

  • Title of Project.

CHARACTERIZATION TECHNIQUES OF
NANOPARTICLES

  • PREPARED BY:
    Lana Sarkawt
    Chnar Sedeeq
  • SUPERVISED BY:
    Prof. Dr Azeez Abdullah Barzinjy
  • ABSTRACT
    Nano formations have pulled a mega interest as a swiftly growing class of materials for
    many applications. Assorted techniques have been utilized to characterize the size, crystal
    formation, elemental constitution and a diversity of other physical characteristics of
    nanoparticles. In assorted cases, there are physical characteristics that can be measured by
    more than one technique. Various sturdiness’s and limitations of each technique complicate
    the select of the most acceptable technique, although many times a combinatorial
    characterization technique is necessitated. In addition, granted that the significance of
    nanoparticles in fundamental research and applications is always increasing, it is
    indispensable that researchers from unconnected domains overcome the dares in the
    reproducible and credible characterization of the nanomaterials, afterward their synthesis
    and further processed. The main goul of this entertain is to summarize the available
    knowledge on the utilize, the developments, the benefits and the foibles of a big number of
    experimental techniques that are attainable for the characterization of nanoparticles.
    Various characterization techniques are categorized according to the concept team of the
    technique operated, the information they can prepare, or the materials that they are destined
    for. Here described the main five characteristics techniques of nanoparticles, their
    operation principles and given examples on their use, presenting them in a comparative
    mode, when possible, in relation to the property studied in each case.
    Key words: Nano formations, nanoparticles, characterization, synthesis.