Materials Literature
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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…
Barium lanthanoborate sealing-glass compositions are provided comprising various combinations (in terms of mole-%) of boron oxide (B.sub.2 O.sub.3), barium oxide (BaO), lanthanum oxide (La.sub.2 O.sub.3), and at least one other oxide selected from the group consisting of aluminum oxide (Al.sub.2 O.sub.3), calcium oxid…
Abstract In recent time, solid state crack repair techniques in spent nuclear fuel dry storage canisters (SNF-DSC) have garnered significant interest. Plates of austenitic stainless steels are usually arc welded to fabricate the cylindrical canisters which are prone to chloride-induced stress corrosion cracking. Frict…
Abstract A crystal plasticity model has been developed for describing the plastic and viscoplastic behaviour of 316H stainless steel. The model has been used successfully to predict the macroscopic response of the material for monotonic and cyclic loading, however the robustness of the model is now being scrutinised t…
Abstract Owing to its fine structure and high strength to weight ratio, high strength low alloy (HSLA) steel, API X80, is most preferred grade for application in oil and gas pipeline fabrication. Coarse grain heat affected zone (CGHAZ) formed during fabrication of pipelines using high heat input welding operation like…
Abstract Compact heat exchangers (CHX) fabricated using the diffusion bonding process will be useful in the design and operation of Generation IV nuclear power plants. The NDE challenges posed by diffusion-bonded compact heat exchangers (DBHE) are quite different from those of their more familiar shell-and-tube cousin…
Abstract There is increased interest in the application of compact heat exchangers (CHXs) for nuclear service given their high thermal efficiency and compactness. CHXs are fabricated by joining a stack of etched plates with dense microchannels through diffusion bonding. Diffusion bonding material has basic mechanical…
Abstract Nondestructive evaluation (NDE) methods are widely used for inspecting safety relevant components in nuclear reactors. Most of these NDE-methods are optimized and applied for the detection of cracks but there is still no reliable NDE method for measuring the embrittlement of RPV steels. However, since the eva…
Abstract For disposal of the research reactor of the Technical University Munich FRM II a new transport and storage cask design was under approval assessment by the German authorities on the basis of International Atomic Energy Agency (IAEA) requirements. The cask body is made of ductile cast iron and closed by two bo…
The structurally precise polyhydrido copper nanocluster (NC) [Cu30H18{S2P(OnPr)2}12] which contains an unprecedented inner hollow Cu12 icosahedral core has been fully characterized by single-crystal neutron diffraction; while Ag12 and Au12 inner hollow icosahedra encircled within Ag44 and Au32 NCs have been reported b…
We report the direct evidence of the stabilization of magnetic skyrmion bubbles (SkBs) in confined trench and hole structures. By using a high-resolution atomic force microscope, we demonstrated that SkBs exhibit smaller sizes in nanoscale holes and trenches compared with that in uniform films. Our micromagnetic simul…
Abstract Loess is a typical natural mineral particle distributed widely around the world, and it is inexpensive, readily accessible, and harmless to the environment. In this study, loess was modified by surface grafting copolymerization of functional monomers, such as acrylic acid, N-vinyl pyrrolidone, and N,N-methyle…
Cast films, based on β-iPP, were prepared via melt extrusion, and, then annealed at different temperature. The effect of annealing on the properties of the cast films, as well as on microvoid formation and evolution was investigated. After annealing, the initial lamellar structure was improved, and more secondary crys…
Purpose A “spin-diode” is the spintronics equivalent of an electrical diode: applying an external magnetic field greater than the limit of spin-diode BT flips the spin-diode between an isolating state and a conducting state [1]. While conventional electrical diodes are two-terminal devices with electrical current betw…
Abstract The modulus spectra of organic field-effect transistors (OFETs) with electrode overlap and peripheral regions have been experimentally and theoretically investigated. The complex impedance of regioregular poly(3-hexylthiophene-2,5-diyl) (P3HT) OFETs with electrode overlap and peripheral regions was measured w…
InGaN/GaN multiple quantum wells (MQWs) were fabricated under the same growth conditions on the planar and patterned sapphire substrates (PSS) with 10 nm and 20 nm sputtering AlN layers, respectively. Photoluminescence and electroluminescence results both showed that MQWs samples have significant differences in emissi…
Abstract Boundary-layer visualization in Functionally Graded Metal Matrix Composites (FGMMC) is imperative for a fundamental evaluation of the shape, size, gradient and orientation of the reinforcement phase. In this context, FGMMCs are particularly challenging as they require high-quality mechanical preparation. The…
Abstract The INCEFA+ project (INcreasing Safety in nuclear power plants by Covering gaps in Environmental Fatigue Assessment) is a five year project supported by the European Commission HORIZON2020 programme, which will conclude in June 2020. This project aims to generate and analyse Environmental Assisted Fatigue (EA…
Abstract Transcatheter Aortic Valve Implantation (TAVI) has become today a popular alternative technique to surgical valve replacement for critical patients. However, with only six years follow up on average, little is known about the long-term durability of transcatheter implanted biological tissue. Moreover, the hig…
Abstract Intergranular corrosion refers to a selective corrosion attack at the grain boundaries of polycrystalline materials. In engineering Al-Mg alloys of the AA 5xxx series it is caused by the formation of chemicallyless noble β-Al 8 Mg 5 phases along the grain boundaries. The sensitivity of a material to intergran…