Publication:
Characterization of particles created by laser-driven hydrothermal processing

dc.contributor.advisorMenon, Sarath K.
dc.contributor.advisorLuhrs, Claudia C.
dc.contributor.authorCamargo, Andres
dc.contributor.departmentMechanical and Aerospace Engineeringen_US
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.contributor.secondreaderMariella, Raymond P. Jr.
dc.date16-Jun
dc.date.accessioned2016-08-02T19:34:31Z
dc.date.available2016-08-02T19:34:31Z
dc.date.issued2016-06
dc.description.abstractThis study examined particles created by laser-driven hydrothermal processing, an innovative technique used for the ablation of submerged materials. Two naturally occurring materials, obsidian and tektite, were used as targets for this technique. Characterization of sample materials before and after laser processing was conducted through multiple techniques such as optical microscopy, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy. Examination of the untreated base material, in bulk and crushed form, established a baseline for comparison to particles created by laser processing of the same material. Characterization methods provided data of micron- and nano-sized particles, including their crystal structure, microstructure, and chemical composition. The bulk and crushed obsidian and tektite samples contained inclusions and particles rich in several transition elements, most notably iron and titanium. Analysis of liquid media collected after laser processing of bulk obsidian and tektite samples revealed fine particles rich in the same elements. Evidence suggests laser-driven hydrothermal processing separates heavy elements from the mostly amorphous silica matrix encountered in the materials examined.en_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.
dc.description.serviceLieutenant Commander, United States Coast Guarden_US
dc.description.urihttp://archive.org/details/characterization1094549424
dc.identifier.urihttps://hdl.handle.net/10945/49424
dc.publisherMonterey, California: Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.subject.authorlaser-driven hydrothermal processingen_US
dc.subject.authorcharacterizationen_US
dc.subject.authorobsidianen_US
dc.subject.authortektiteen_US
dc.subject.authornatural glassen_US
dc.titleCharacterization of particles created by laser-driven hydrothermal processingen_US
dc.typeThesisen_US
dspace.entity.typePublication
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.nameMaster of Science in Mechanical Engineeringen_US
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