Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Investigation of nanocrystalline structure in selected carbonaceous materials Subject The topic of the resource Aromaticity; Carbonaceous materials; Graphitization; Nanocrystals Description An account of the resource The structural parameters of nine Indian coals were determined by X-ray diffraction (XRD) and Raman spectroscopy. The study revealed that the coals contain crystalline carbon of turbostratic structure with amorphous carbon. The stacking height (Lc) and interlayer spacing (d002) of the crystallite structure of the coals ranged from 1.986 to 2.373 nm and from 0.334 to 0.340 nm, respectively. The degree of graphitization was calculated to range from 42% to 99%, thereby confirming the ordering of the carbon layers with the increase in coal rank. An exponential correlation was observed among the aromaticity (fa), the lateral size (Lc), and the rank (I20/I26), suggesting that the coal crystallites are nanocrystalline in nature. A very strong correlation was observed between the structural parameters (fa, d002, Lc, the H/C ratio, and I20/I26), the volatile matter content, and the elemental carbon content, indicating the structures of coals are controlled by the degree of contact metamorphism. The Raman spectra exhibited two prominent bands: the graphitic band (G) and the first-order characteristic defect band (D). The deconvolution resulted in five peaks: G, D1, D2, D3, and D4. The intense D1 band, which appeared at ~1350 cm-1, corresponds to a lattice vibration mode with A1g symmetry. The D2 mode, which appeared at ~1610 cm-1, arises from the structural disorder as a shoulder on the G band. University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg 2014. Creator An entity primarily responsible for making the resource Manoj B. Source A related resource from which the described resource is derived International Journal of Minerals, Metallurgy and Materials, Vol-21, No. 9, pp. 940-946. Publisher An entity responsible for making the resource available University of Science and Technology Beijing Date A point or period of time associated with an event in the lifecycle of the resource 2014-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1007/s12613-014-0993-7" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s12613-014-0993-7</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942088144&amp;doi=10.1007%2Fs12613-014-0993-7&amp;partnerID=40&amp;md5=515ea45241538379f6d8b3fb0f926f72" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942088144&amp;doi=10.1007%2fs12613-014-0993-7&amp;partnerID=40&amp;md5=515ea45241538379f6d8b3fb0f926f72</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 16744799 Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Manoj B., Department of Physics, Christ University, Bangalore, 27, Karnataka, India