Experimental and Theoretical NANOTECHNOLOGY (ETN) abbreviated as Exp. Theo. NANOTECHNOLOGY is a multidisciplinary peer-reviewed and open access journal. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of nanotechnology with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics, materials science and medicine. ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.
In this study, qualitative and quantitative values of different Iraqi cements have been estimated using laser-induced breakdown spectroscopy (LIBS), which provides a sensitive elemental analysis based on the measurement of plasma lines that generated after laser interaction at a sample. A passively Qswitched Nd: YAG laser operating at wavelength of 1064 nm, energy of 100 mJ, and pulses of 9 ns pulse width was applied as a radiation source. In addition, Iraqi Portland cement samples produced in Kufa and Mass factories have been examined using EDX for determination of major and minor elements concentration such as Ca, Si, Al ,Fe and Mg. LIBS spectra of different samples were recorded from (320 - 740) nm spectral range. The line intensities of these elements are identified and marked, the possibility to carry out a quantitative analysis using the LIBS technique was checked through the comparison the obtained result with related EDX data. For quantitative measurements, the concentrations of different elements in the cement are estimated by construction calibration curves and analysis signals of high purity standard samples as a first researchers work on it as our best knowledge.
Keywords: laser-induced breakdown spectroscopy (LIBS), passively Q- switched Nd: YAG laser, EDX, Cement