Microscale assessment of 3D geomechanical structural characterization of gondawana shales
作者： Manjunath G.L. , Rajesh R. Nair
DOI: 10.1016/J.COAL.2017.08.007
关键词:
摘要: Abstract The microscale characteristics of gray and black shale samples collected from two different locations Singrauli coalfield, Madhya Pradesh, India were investigated using scratch tester Raman stress mapping. failure events analyzed for the entire track. areas critical point identified based on acoustic emission, tangential force measurement along with characterization methods Scanning Electron Microscopy (SEM) spectroscopy. SEM studies at points indicate in are completely different. by confocal spectroscopy measuring spectral shifts spectra disordered D band used quantifying Micro test performed directions regions is compared. measured compared strained regions. This reveals 2D imaging as a proxy characterizing inversion. Correspondingly peak intensity ratios full width half maximum (FWHM) calculated
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