{"id":618,"date":"2015-02-01T22:12:52","date_gmt":"2015-02-02T06:12:52","guid":{"rendered":"http:\/\/labs.wsu.edu\/mccloy\/?page_id=618"},"modified":"2025-12-06T17:55:25","modified_gmt":"2025-12-07T01:55:25","slug":"research_2","status":"publish","type":"page","link":"https:\/\/labs.wsu.edu\/mccloy\/research_2\/","title":{"rendered":"Past Research Projects"},"content":{"rendered":"
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Past Research Projects<\/strong><\/span><\/p>\n

A Molten Salt Community Framework for Predictive Modeling of Critical Characteristics
\n<\/strong>This research aims to develop a molten salt community framework to address the needs in advanced fuel cycles, including understanding salts via new theory of liquids, predicting salt characteristics via simulations (DFT, MD, and CALPHAD by implementing advanced models), optimizing inversely molten salts, and verifying simulations by experiments.
\n(Partners: WSU Chemistry, Penn State, Sheffield Hallam, Imperial College London, Queen Mary University of London, Bangor University)
\n<\/strong>Related Publications<\/a><\/span><\/p>\n

Separated waste stream immobilization of iodine and offgas caustic scrubber solution<\/strong>
\nThis project aims to produce a set of waste forms from separation of iodine from the caustic offgas scrubber solution. The primary caustic scrub containing iodine, halides, and carbonate will be immobilized in a glass-bonded composite of cancrinite\/sodalite. The iodine-loaded silver sorbent will be stripped of iodine, converted to NaI, and immobilized into a separate durable glass-bonded iodosodalite waste form. (Partners: Rutgers, PNNL, ANSTO; Funding DOE-NEUP)
\nRelated Publications<\/a><\/span><\/p>\n

Conversion of common DSP minerals into 2:1-type clay minerals<\/strong><\/span>
\nHighly alkaline iron, aluminum, and titanium-rich tailings and refining wastes are the abundant end-products of the bauxite mining and aluminum refining industries. Worldwide, estimates of these bauxite residue stockpiles exceed 3 billion tons, with approximately 130 million tons produced every year. In the current research, we studied the synthesis of feldspathoids and their subsequent dissolution and mineral transformation. A synthetic mixture of sodalite\/cancrinite was designed to be similar to the desilication products (DSP) produced during the Bayer process. These DSP materials were then transformed using a simple process to useful materials for soil amendment. (Funding: Emirates Global Aluminum)
\n<\/span>Related publications<\/a><\/span><\/p>\n

Supply Chain Data Science – Critical Materials Decision Support System Based on Machine Learning: Battery Materials Case Study<\/strong><\/span>
\nThis seed project aims to begin construction of a high-level data analysis and decision support tool for understanding supply chain issues with critical materials. To achieve this objective, data will be harvested from a wide range of literature resources from government, private, and scientific communities, organized in a useful fashion, and advanced decision-making methods (including data science, machine learning, and decision support systems) will be applied. (Partners: Microsoft; Funding JCDREAM)<\/span><\/p>\n\n\n\n
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Simulated Used Nuclear Fuel Dissolution as a Function of Fuel Chemistry and Near Field Conditions<\/strong><\/span>
\nThis project will develop a fundamental and transformative understanding of the various effects of simulated used nuclear fuel (UNF) microstructure on its dissolution in geologic repository conditions, through an integrated research program. This understanding will underpin the maturation of models for UNF evolution and interaction under different potential repository conditions, enabling reliable prediction of degradation and adjustment of repository conditions to achieve desired long-term performance, and providing increased confidence in predicting behavior for up to one million years. (Partners: PNNL, University of Sheffield; Funding DOE-NEUP)<\/span>
\nRelated Publications<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Technetium Local Structure and Chemistry in Low Activity Waste Glass<\/strong><\/span>
\nWe will obtain first-of-a-kind chemical structure determination of poorly understood, environmentally relevant technetium compounds.\u00a0 Through the investigation of model alkali oxide 99<\/sup>Tc compounds and 99<\/sup>Tc-containing oxide glasses we intend to provide key data on glass structure around 99<\/sup>Tc , the stability of the waste glass, and its corrosion in water. There are several known polymorphs of Tc-oxide and the transformation between these phases will be examined. Search algorithms will be used to identify additional Tc-oxide phases. This work provides much needed data for the improvement of performance assessment models of Tc release in waste repositories.\u00a0 (Partners:\u00a0 PNNL, EMSL, LBNL, ORNL; Funding: DOE-ORP)<\/span>
\nRelated Publications<\/a><\/td>\n		 <\/p>\n

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Pertechnic acid in variable concentrations (From<\/span> Soderquist et al., 2019<\/a><\/em><\/span>)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Studies and Analyses of Compositional Dependence of Glass Corrosion Associated with Nepheline Formation<\/strong>
\nWe will systematically explore nepheline crystallization and chemical durability with simplified glass systems, starting with various Na2<\/sub>O-SiO2<\/sub>-A<\/span>l2<\/sub><\/span>O3<\/sub> compositions, then building complexity\u00a0 to add several other important components, such as CaO, B2<\/sub>O3<\/sub>, Li2<\/sub>O, and Fe2<\/sub>O3<\/sub>.\u00a0 By this tiered approach we will build on the understanding of the effects of the different components on the susceptibility to nepheline formation in complex nuclear waste glasses for immobilization of Hanford wastes. Data-driven, machine-learning models will be created to predict the formation of nepheline as a function of glass composition and thermal treatment. The interpretation of these models will provide quantitative insight to the forces driving nepheline crystallization in high-level waste glasses. (Partners:\u00a0 PNNL, Rutgers; Funding: DOE-ORP)<\/span>
\nRelated Publications<\/a><\/td>\n		 <\/p>\n\n

Representation of Nepheline structure viewed down [001]<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Understanding the fundamental science governing the development and performance of nuclear waste glasses<\/strong>
\nThe goal of this Integrated Research Program is to supply actionable information to DOE to reduce costs and risks associated with nuclear waste vitrification. Primary information will be compositional dependence and glass chemistry effects on undesirable processing outcomes such as low waste loading, crystal formation, technetium volatility, and salt formation. (Partners:\u00a0 Rutgers, University of North Texas, PNNL; Funding DOE-NE with DOE-EM)
\nRelated Publications<\/a><\/span><\/p>\n

ZnS scintillator for high resolution X-ray imaging at 9 keV<\/strong>
\nRapid integrated circuit (IC) inspection using x-ray microscopy requires novel X-ray scintillating materials with high efficiency and high spatial resolution. Current scintillator materials, such as Cesium Iodide (CsI), suffer from a trade-off between efficiency and spatial resolution. Novel materials which can be produced with improved brightness and decreased afterglow are necessary to address the stringent requirements of fast, high resolution X-ray microscopy. (Partners:\u00a0 CeraNova, WSU Center for Materials Research; Funding: DOD-DMEA<\/span>)
\nRelated Publications<\/a><\/p>\n

Apatite and sodalite based glass-bonded waste forms for immobilization of 129<\/sup>I and mixed halide radioactive wastes<\/strong><\/span>
\n We will develop chemically durable glass-bonded ceramic waste forms for immobilization of 129<\/sup>I and mixed halide wastes with focus on: (i) low-temperature synthesis (<200\u00b0C) of ceramic minerals and (ii) design of glass compositions with high chemical durability and good sintering ability at temperatures <800\u00b0C . Calcium phosphate (CaP) apatite [Ca5<\/sub>(PO4<\/sub>)3<\/sub>X] and sodalite [Na8<\/sub>(AlSiO4<\/sub>)6<\/sub>X2<\/sub>], containing halides (X = Cl, I) will be synthesized at low temperatures using various solution-based synthesis routes to prevent halide volatility, and these minerals will further be consolidated to monolithic waste forms using borosilicate (for sodalite) and phosphate (for CaP-apatite) glass-binders.\u00a0\u00a0 (Partners:\u00a0 Rutgers, PNNL; Funding: DOE-NEUP) <\/span>
\nRelated Publications<\/a><\/span><\/p>\n

Understanding influence of thermal history and glass chemistry on kinetics of phase separation and crystallization in borosilicate glass-ceramic waste forms for aqueous reprocessed high level waste<\/strong><\/span>
\nWe will develop a fundamental and transformative understanding of the crystallization mechanisms in complex glass-ceramic high level waste (HLW) wasteforms. This understanding will underpin the maturation of glass ceramic manufacture, by linking process variables to molecular scale mechanisms, enabling reliable production of wasteforms to the desired specification. (Partners:\u00a0 PNNL, Rutgers, University of Sheffield, Warwick University; Funding DOE-NEUP)<\/span>
\nRelated Publications<\/a><\/p>\n

Advanced models for nondestructive evaluation of aging nuclear power plant cables<\/strong><\/span>
\nThe objectives of this project are (i) develop advanced, validated models relating microstructural and chemical changes, due to thermal exposure, radiation exposure and water immersion, in cable insulation polymers to observable changes in dielectric, terahertz (THz) and infrared (IR) frequency spectra, (ii) identify the frequencies which most sensitively indicate microstructural and chemical changes in these polymers, and (iii) develop advanced, validated models of the response of novel cable nondestructive evaluation methods; capacitive, THz and infrared, to cable aging as a function of thermal, radiation and\/or water exposure. (Partners: ISU, PNNL; Funding DOE-NEUP)
\nRelated Publications<\/a><\/span><\/p>\n

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Use of Micro- and Meso-scale Magnetic Characterization Methods to Study Degradation of Reactor Structural Material
\n<\/strong>We will integrate microstructural metrology, micro-magnetic measurements, and meso-scale phase field modeling to develop advanced tools and techniques that can extract semi-quantitative diagnostic and interpretive information about the state of microstructural damage in a material based on magnetic signature data alone. Improved diagnostic information about materials degradation will greatly enhance reactor safety by reducing uncertainty in assigning safety margins for materials currently in service and for new materials currently in development. This technology has potential for maturation into real-time, in-situ monitoring capability.\u00a0 (Partners:\u00a0 PNNL; Funding: DOE-NEUP)
\nRelated Publications<\/a><\/span><\/td>\n		\"\"<\/p>\n

MFM image of Poly-Fe<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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\"Banner_2015\"<\/a><\/p>\n

Past Research Projects<\/strong><\/p>\n

A Molten Salt Community Framework for Predictive Modeling of Critical Characteristics
<\/strong>This research aims to develop a molten salt community framework to address the needs in advanced fuel cycles, including understanding salts via new theory of liquids, predicting salt characteristics via simulations (DFT, MD, and CALPHAD by implementing advanced models), optimizing inversely molten salts, and verifying simulations by experiments.
(Partners: WSU Chemistry, Penn State, Sheffield Hallam, Imperial College London, Queen Mary University of London, … » More …<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-builder.php","meta":[],"wsuwp_university_location":[334],"wsuwp_university_org":[409],"_links":{"self":[{"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/pages\/618"}],"collection":[{"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/comments?post=618"}],"version-history":[{"count":54,"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/pages\/618\/revisions"}],"predecessor-version":[{"id":3170,"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/pages\/618\/revisions\/3170"}],"wp:attachment":[{"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/media?parent=618"}],"wp:term":[{"taxonomy":"wsuwp_university_location","embeddable":true,"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/wsuwp_university_location?post=618"},{"taxonomy":"wsuwp_university_org","embeddable":true,"href":"https:\/\/labs.wsu.edu\/mccloy\/wp-json\/wp\/v2\/wsuwp_university_org?post=618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}