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  • Title: Characterization of pyrocarbon coated materials using laboratory based x-ray phase contrast imaging technique.
    Author: Kashyap YS, Roy T, Sarkar PS, Yadav PS, Shukla M, Sinha A, Dasgupta K, Sathiyamoorthy D.
    Journal: Rev Sci Instrum; 2007 Aug; 78(8):083703. PubMed ID: 17764325.
    Abstract:
    In-line x-ray phase contrast is an emerging x-ray imaging technique that promises to improve the contrast in x-ray imaging process. This technique is most suited for x-ray imaging of soft materials, low atomic number elements such as carbon composite fibers, very thin coatings, etc. We have used this new emerging technique for visualization and characterization of the pyrocarbon coated materials using a combination of microfocus x-ray source and x-ray charge coupled device detector. These studies are important for characterization of coating and optimization of various process parameters during deposition. These experiments will help us to exploit the potential of this technique for studies in other areas of material science such as characterization of carbon fibered structures and detection of cracks and flaws in materials. The characterization of the imaging system and optimization of some process parameters for carbon deposition are also described in detail.
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