Materials Literature
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This paper describes the framework often used to derive protection requirements in a nuclear fuel route context. This framework consists of a Hazard and Interlock schedule and the two main analysis approaches used to assess the protection requirements for a postulated fault in the Hazard and Interlock schedule. These…
Abstract not provided.
We present the results of a three-year LDRD project focused on understanding microstructural evolution and related property changes in Zr-based nuclear cladding materials towards the development of high fidelity predictive simulations for long term dry storage. Experiments and modeling efforts have focused on the effe…
Abstract not provided.
The U.S. Department of Energy Office of Nuclear Energy (DOE-NE), Office of Fuel Cycle Technology, has established the Used Fuel Disposition Campaign (UFDC) to conduct the research and development activities related to storage, transportation, and disposal of used nuclear fuel and high-level radioactive waste. The miss…
This report summarizes work conducted during fiscal year 2013 to work toward developing a full capability to evaluate fracture contour J-integrals to the Grizzly code. This is a progress report on ongoing work. During the next fiscal year, this capability will be completed, and Grizzly will be capable of evaluating th…
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Solid-state reaction processes and atomic ordering in Cu/Au bilayer nanofilms (with the atomic ratio\nCu:Au≈50:50) have been studied in situ by the methods of transmission electron microscopy and\nelectron diffraction in the process of heating from room temperature up to 700 ºС at a heating rate of\n4-8 ºС/min. The so…
본 연구에서는 불순물 첨가에 따른 MgO의 소결에 대한 물성변화를 확인하고자 99.9%순도, 300nm크기의 MgO 파우더에 고순도의 CaO를 0wt%, 0.25wt%, 0.50wt% 첨가하여 7GPa의 초고압 하에서 각각 600℃~800℃로 5분 간 소결을 진행하였다. MgO(-CaO) 소결체의 미세구조와 기계적 물성 변화 확인을 위해 scanning electron microscopy(SEM), X-ray diffractometry(XRD), Vickers 경도, 밀도 측정을 진행하였다. SEM 분석 결과 처리전 300nm 의 MgO 응집체는 800℃ 고압소결…
摘要： 制备了一种简单的聚谷氨酸修饰玻碳电极的用于检测甲基对硫磷的电化学传感器。 并应用循环伏安法研究了甲基对硫磷在该修饰电极上的氧化还原行为；甲基对硫磷的浓度检测采用差分脉冲伏安法，结果表明，甲基对硫磷在5.0×10-7～7.5×10-4 mol/L浓度范围与响应电流有良好的线性关系。 甲基对硫磷检测限（S/N=3）可达1.0×10-9 mol/L。 该法制备的传感器有望应用于实际样品中的甲基对硫磷的检测。
Abstract not provided.
The composition and structure of rare metal ores Chuktukon deposit was studied. The predominant\npart of the ore was presented by the products of final hydrolysis, which is dominated by oxides and\nhydroxides of iron and manganese. Rare earth metals in the ores are presented in the form of phosphates\n(Florencite and…
The results of studying effects of coal and carbonaceous wastes chemical modification on yields and\nproperties of the thermolysis liquid products were summarized . The most effective reagents were\norganic substances (including liquid waste of hydrocarbon nature), halides of transition metals (ZnCl2,\nFeCl3) and alka…
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Results of the study of integrated catalytic processing of aspen-wood are presented. The studied\nprocess includes the stages of biomass catalytic fractionation on cellulose and low molecular mass\nlignin (LMML), hydrolysis cellulose into glucose for fermentation to bioethanol, conversion of LMML\nin ethanol medium in…
INTRODUCTION: Copper-nickel-titanium alloys are supposed to deliver a shape memory effect: when they are brought to a low temperature phase and subjected to a plastic deformation, they should recover their initial shape by simple heating. Nickel-titanium alloys can display different crystallographic phases: martensite…
In an effort to understand and quantify the carbon and sulfur contents of a curium oxide production process performed in the hot cells at Oak Ridge National Laboratory’s Radiochemical Engineering Development Center, a non-radioactive surrogate was used in a similar oxide formation process. Neodymium (Nd), which was ch…
Abstract not provided.
This work presents a study of (M;N)-coherent pairs of order (m; k) of sequences of orthogonal polynomials of a continuous and discrete variable on the real line and on the unit circle. This concept extends all the generalizations of the notion of, in our terminology, (1; 0)-coherent pair, studied in the literature, wh…