Materials Literature
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*National Council on Radiation Protection and Measurements (retired), 7910 Woodmont Avenue, Suite 400, Bethesda, MD 20814-3095. The author declares no conflicts of interest. For correspondence contact the author at the above address, or email at [email protected]. (Manuscript accepted 1 July 2013)
Ames Laboratory scientist Deborah Schlagel talks about the Lab's research in growing single crystals of various metals and alloys. The single crystal samples are vital to researchers' understanding of the characteristics of a materials and what gives these materials their particular properties.
The DOE Office of Environmental management (DOE EM) faces the challenge of decommissioning thousands of excess nuclear facilities, many of which are highly contaminated. A number of these excess facilities are massive and robust concrete structures that are suitable for isolating the contained contamination for hundre…
Um großflächige, mechanisch flexible, elektronische Bauelemente und Schaltungen herzustellen, müssen halbleitende Schichten auf flexiblen Substraten abgeschieden werden können. Dies verlangt nach Verfahren, die keine hohe thermische Belastung für das, in der Regel aus Kunststoff bestehende, Substrat mit sich bringen u…
Localized surface plasmon polaritons in conducting structures give rise to enhancements of electromagnetic local fields and extinction efficiencies. Resonant conducting structures are conventionally fabricated with a fixed geometry that determines their plasmonic response. Here, we challenge this conventional approach…
In this thesis, we present the effect of surface transformation and transfer layer on the friction of carbonaceous hard coatings. Carbonaceous hard coatings have been used in recent years as coatings for tribological components; especially for vehicles, in order to reduce friction and wear, which consequently increase…
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The magnetic penetration depth ? as a function of temperature in Bi4O4S3 was studied using muon-spin-spectroscopy measurements. The dependence of ?penetration depth on temperature suggests the existence of two s-wave type energy gaps with the zero-temperature values of 1.117(3) and 0.16(1) meV for the large and small…
UTokyo Repositoryは本学で生産されたさまざまな学術成果を電子的形態で集中的に蓄積・保存し、世界に発信することを目的としたインターネット上の発信拠点です。 The UTokyo Repository is the system to store and provide digital resources created by members of the University of Tokyo. Its main purpose is to develop digital collections, make them available online, and preserve them for long-term…
We study the pairing symmetry in doped silicene subject to a perpendicular external electric field. We find that the electric field induces an interesting quantum phase transition from the singlet chiral $d+id'$-wave superconducting phase to the triplet $f$-wave one. The emergence of the $f$-wave pairing results from…
Three kinds of in-situ growth TaC whiskers toughening Al2O3 matrix ceramic cutting tool materials were prepared by two steps, which were in-situ synthesis of TaC whiskers in Al2O3 matrix powder by carbothermal reduction process and hot pressing of the composites respectively. The preparation process, microstructure, m…
Coordination framework synthesis offers a versatile path towards the construction of novel multifunctional materials. The incorporation of metal centres capable of spin-state switching into robust framework hosts allows for the integration of the two properties of spin crossover and nanoporosity. By combining these tw…
Obtaining a sufficient sampling of conformational space is a common problem in molecular simulation. We present the implementation of an umbrella-like adaptive sampling approach based on function-based meshless discretization of conformational space that is compatible with state of the art molecular dynamics code and…
In this research, a hardness and tensile strength tested. A test using medium carbon steel with methods quenching, and tempering variying at 30, 60, and 90 minutes, as well as original material. A Testing Machine Type MR - 20 - CT no. 6592 is used for the tensile strength test and Vickers Hardness Tester using the Mat…
We study exciton-induced degradation of various organic/metal interfaces in organic optoelectronic devices. The results show that organic/metal interfaces are susceptible to irradiation in general, resulting in a deterioration in charge transport across the interfaces. We find that organic/metal interfaces containing…
Two coordination polymers, {[Cu2(L)(en)2(H2O)2]·8H2O}n (1) and {[(CuSaen)3(HL)(H2O)2]·4H2O}n (2) (H4L = 2,2′,6,6′-Tetracarboxybiphenyl, HSaen = N-salicylaldehyde-1,2-diaminoethane and en = Ethylenediamine) have been assembled from 2,2′,6,6′-tetracarboxybiphenyl ligand and Schiff base metal complex CuSaenAc (HAc = acet…
To define the ratio of the signal of the desired pixel and the noise of adjacent pixels, noise and signal sources are theoretically identified. While defining these values, atmospheric attenuation, losses at transmitting surfaces and wave characteristics of light are considered. For presentation purposes, a standard N…
We investigate kinetic pathways of the DNA melting transition using modified versions of the Poland–Scheraga (PS) and Peyrard–Dauxois–Bishop (PDB) models. The models have been generalized to include variable-range energetic interactions. Using Monte Carlo and Brownian dynamic simulations on the PS and PDB models, resp…
Combined reflection and transmission ellipsometry of film-substrate systems provides a wealth of experimental information that proves helpful with extracting the system parameters. In such a technique, both the reflection and transmission ellipsometric functions are simultaneously measured. The technique itself requir…
As limited results were reported in terms of the evolution of sliding friction with growth of oxide layer in thickness during running-in, a pin-on-disc wear test was carried out in this study. 4.8Ni-1.5Cr cast iron as core layer and low carbon steel as outer layers, were thermo-mechanically processed via three differe…