Materials Literature
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Abstract Stainless steel dissimilar metal welds (SS DMW) are widely used within the French nuclear power plants where they connect the main components (pressure vessel, pressurizer, steam generator) made of low alloy ferritic steel to the primary circuit pipes made of austenitic stainless steel. Because of their heter…
Abstract Current ASME Section III, Division 5 code provides elastic, simplified inelastic and inelastic analysis options for designing nuclear power plant components for elevated temperature service. These analyses methods may fail to capture the complex creep-fatigue response and damage accumulation in materials at e…
Abstract LMPH (Radiation heat exchange tube), the key section of ethylene cracking furnace, has various failure behaviors (e.g., carbonation, vulcanization, oxidation, and deformation) because of its rigorous working conditions and complicated structure [1]. In this paper, the ultrasonic guided wave is applicable to i…
Abstract High temperature nuclear reactors plan to use highly corrosive coolant such as molten salts, molten lead, and lead-bismuth eutectic mixtures. The existing Class A metallic materials qualified in the ASME Section III, Division 5 rules for high temperature nuclear reactors are not ideal for resisting corrosion…
Abstract The paper describes the history of application in Ukraine the methods of critical temperature of brittleness (CTB is WWER’s analogue of PWRs ductile to brittle transition temperature) prediction. Also, a current state of chemical factor consideration in radiation embrittlement of PWR and WWER regulatory docum…
Abstract Coke drums are pressure vessels used in the delayed coking process at oil refineries, which transform heavy residual oil into light-weight hydrocarbon molecules and solid coke through thermal cracking. Due to the severe thermal and mechanical loadings during operation, these vessels experienced low-cycle fati…
Abstract For pipe fabrication shops, stainless steel pipe welding typically represents 15%–20% of their business. The pipe materials fabricated in these shops are primarily austenitic stainless 304L and 316L pipe. The quality requirements in stainless pipe fabrication shops are determined by performance requirements f…
This research has focused on the effect of modified cellulose and clay on the thermal and mechanical properties of PLA bio-nanocomposite. Cellulose was chemically modified with silane coupling agent in order to enhance compatiblization with PLA. Successful modification was confirmed by Fourier Transform Infrared Spect…
Abstract At moderate and high temperature applications, nickel-based superalloys are widely preferred as suitable candidate materials due to their high mechanical properties and corrosion/oxidation resistance, however, difficulties in mass production of these alloys and their cost cause the use of these alloys as a pa…
Essential oils are odorous principles stored in special plant cells—glands, glandular hairs, oil ducts or resin ducts—situated in any part of a plant or its exudations. These oils are responsible for the distinctive aromas associated with individual plant species. Essential oil composition can vary according to geogra…
This study aims to develop the mix proportion of concrete incorporating water purification sludge (WPS), as parts of fine aggregate and consequently investigate its mechanical properties and durability. The experiments involve three sludges from Da-Nan, Lin-Nei and Nan-Hua water treatment plants in Taiwan. In addition…
To investigate further the interaction between epoxides and collagen in epoxy tanning, collagen solutions (3 mg/ml) cross-linked with various concentrations (0.5–4-wt%) of 1,4-butanediol diglycidyl ether (BDDGE) at low temperature (4ºC), alkaline conditions (pH = 10) were prepared. The sodium dodecyl sulfate–polyacryl…
Palladium chloride impregnated on Al2O3-pillared clay (Pd/Al-PILC) was synthesized by intercalation of aluminium (III) chloride into clay interlayers and calcined at 500°C for 1 h. Subsequently, impregnated with PdCl2 and calcination at 450°C for 4 h. The modified clay catalyst was characterized by X-ray diffraction (…
Herein, we report the fabrication of UV-active NaNbO3/Al2O3 (30 wt.%) ferroelectric heterojunction photocatalyst with enhanced photoelectrochemical activity to Methylene Blue (MB). Pure NaNbO3 nanorods (NRs) were synthesized by a facile hydrothermal process and NaNbO3/Al2O3 composite was prepared by an ultrasonic vibr…
Global warming primarily due to deforestation has led to the development of new materials to substitute felling of trees by wood-based industries. The utilisation of wood chips and cassava starch for the production of particle board was the thrust of this research. The chip sizes of 0.85 and 1.7 mm, dosage and types o…
This research evaluates achira starch modification via gamma radiation, chemical modification and the subsequent adhesives formulation. Native starch was irradiated using a linear accelerator; the mean dose rate used was 19.5 kGy/min at ambient temperature and normal pressure. The chemical modification of irradiated s…
The fillers from agriculture and industrial wastes filled natural rubber (NR) have been prepared to clarify their properties and develop to be the eco-friendly composites. This research aims to study the composites namely rice husk ash (RHA)/NR, clay/NR and crumb rubber/NR composites on the curing characteristics, mec…
In this study, the disintegration of poly(butylene succinate)(PBS) and poly(lactic acid) (PLA) under landfill conditions was investigated. Both polymers were melted, injected into a dumbbell-shape, and buried under the soil for 20 weeks. The morphology of the polymer from the scanning electron microscope (SEM) reveale…
The impact of granular microstructure on permanent magnets on eddy current losses is investigated. A numerical homogenization procedure for electrical conductivity is defined. Then, an approximated simple analytical model for the homogenized conductivity able to capture the main features of the geometrical and materia…
Pada penelitian ini, serbuk elektrolit padat dengan komposisi Ce 0,8 Gd 0,15 Sm 0,05 Nd x O 1,9 dibuat dengan variasi x = 0; 0,025; 0,05; dan 0,075. Serangkaian percobaan dilakukan untuk menghasilkan elektrolit padat dengan ukuran butir mencapai skala nanometer (nm). Percobaan-percobaan ini diawali dengan preparasi se…