Articles de revista: Enviaments recents
Ara es mostren els items 13-24 de 332
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Nanoporous copper ribbons prepared by chemical dealloying of a melt-spun ZnCu alloy
(American Chemical Society (ACS), 2021-12-29)
Article
Accés restringit per política de l'editorialDealloying is a powerful and versatile method to fabricate three-dimensional nanoporous (np) materials with high surface area. In this work, we investigated the dealloying processes of Zn80Cu20 alloy ribbons in acidic and ... -
Effect of physical aging and cyclic loading on power-law creep of high-entropy metallic glass
(2022-07-10)
Article
Accés restringit per política de l'editorialThe power-law relationship between creep rate decay and time is one of the intrinsic characteristics of metallic glasses. In the current work, a La30Ce30Ni10Al20Co10 high-entropy metallic glass was selected as the model ... -
Crystal structure of polymorph II and the pressure-temperature phase diagram of the dimorphic anesthetic butamben
(American Chemical Society, 2021-11-18)
Article
Accés obertThe crystal structure of the low-temperature form II of butamben has been solved in a P21/c space group very similar to that of form I. Form II possesses virtually the same packing as that of the high-temperature form I, ... -
How relevant are molecular electronic parameters for predicting corrosion inhibition efficiency: imidazoles as corrosion inhibitors of Cu/Zr materials in NaCl solution
(2021-12-01)
Article
Accés restringit per política de l'editorialCorrelations between corrosion inhibition efficiencies and DFT calculated molecular parameters are critically evaluated for nine imidazole-based compounds on eight Cu/Zr materials in 3 wt% NaCl solution. To this end, 31 ... -
Chloramphenicol loaded polylactide melt electrospun scaffolds for biomedical applications
(2021-09-05)
Article
Accés obertMelt electrospinning of polylactide (PLA) loaded with chloramphenicol (CAM) has been performed and characteristics of fibers, physical properties of scaffolds, CAM release behavior, antibacterial properties and biocompatibility ... -
A model study on controlling dealloying corrosion attack by lateral modification of surfactant inhibitors
(2021-12-01)
Article
Accés obertDetrimental corrosion is an ever-concerning challenge for metals and alloys. One possible remedy is to apply organic corrosion inhibitors. Despite progress in molecular assembly and inhibitor research, better mechanistic ... -
Intrinsic relaxation in a supercooled ZrTiNiCuBe glass forming liquid
(American Physical Society (APS), 2021-05-01)
Article
Accés obertWe studied structural relaxation in the bulk metallic glass forming alloy Zr 46.8 Ti 8.2 Cu 7.5 Ni 10 Be 27.5 on different timescales and length scales, with emphasis on the supercooled liquid state. Using x-ray photon ... -
Low-Temperature Heat Capacity Anomalies in Ordered and Disordered Phases of Normal and Deuterated Thiophene
(2021-03-04)
Article
Accés obertWe measured the specific heat Cp of normal (C4H4S) and deuterated (C4D4S) thiophene in the temperature interval of 1 = T, K = 25. C4H4S exhibits a metastable phase II2 and a stable phase V, both with frozen orientational ... -
Heat sink avalanche dynamics in elastocaloric Cu-Al-Ni single crystal detected by infrared calorimetry and Gaussian filtering
(2021-10-11)
Article
Accés obertThe physics behind the cooling process occurring in an elastocaloric Cu–Al–Ni wire during the martensite to austenite transition after stress release is studied. A previous experiment using infrared imaging determined the ... -
Advances and obstacles in pressure-driven solid-state cooling: A review of barocaloric materials
(2021-02-12)
Article
Accés obertSolid-state caloric effects promise since decades a disruptive cooling technology that should be more efficient and cleaner than current vapor compression. However, despite relevant achievements have been made, it is still ... -
Structure, mechanical properties and nanocrystallization of (FeCoCrNi)-(B,Si) high-entropy metallic glasses
(2022-02)
Article
Accés obertNew high-entropy metallic glasses were produced by adding B and Si to the Fe25Co25Cr25Ni25 high entropy alloy. Extremely hard materials were obtained by inducing structural relaxation and nanocrystallization in the ... -
Inter-enantiomer conversion dynamics and Johari–Goldstein relaxation of benzophenones
(Nature, 2021-10-12)
Article
Accés obertWe employ temperature- and pressure-dependent dielectric spectroscopy, as well as differential scanning calorimetry, to characterize benzophenone and the singly-substituted ortho-bromobenzophenone derivative in the liquid ...