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Influence of Structural Defects on the Properties of Metamagnetic Shape Memory Alloys
(MDPI, 2020-08-22)
The production of μ-particles of Metamagnetic Shape Memory Alloys by crushing and subsequent ball milling process has been analyzed. The high energy involved in the milling process induces large internal stresses and high ...
Study of the Phase Transitions in the Binary System NPG-TRIS for Thermal Energy Storage Applications
(MDPI, 2020-03-05)
Neopentylglycol (NPG) and tris(hydroxymethyl)aminomethane (TRIS) are promising phase change materials (PCMs) for thermal energy storage (TES) applications. These molecules undergo reversible solid-solid phase transitions ...
Sensing Capacity in Dysprosium Metal & Organic Frameworks Based on 5-Aminoisophthalic Acid Ligand
(MDPI, 2022-04-28)
Two novel metal-organic frameworks (MOFs), based on dysprosium as the metal and the 5-aminoisophthalic acid (5aip) ligand, have been solvothermally synthesized, with the aim of studying and modulating their luminescence ...
Universal Scaling Law for the Size Effect on Superelasticity at the Nanoscale Promotes the Use of Shape‐Memory Alloys in Stretchable Devices
(Wiley, 2020-02)
Shape-memory alloys (SMAs) are the most stretchable metallic materials thanks to their superelastic behavior associated with the stress-induced martensitic transformation. This property makes SMAs of potential interest for ...
Testing the Applicability of 119Sn Mössbauer Spectroscopy for the Internal Stress Study in Ternary and Co-Doped Ni-Mn-Sn Metamagnetic Alloys
(MDPI, 2021-03-09)
The influence of both the Co addition and the internal stress on the atomic level magnetism is comparatively studied in Ni50Mn37Sn13 and Ni45Mn38Sn13Co4 alloys by magnetic measurements and 119Sn Mössbauer spectroscopy. The ...
Ni–Ti-Hf High-Temperature Shape Memory Alloy: Measure of the Clausius-Clapeyron Coefficient Through Mechanical Spectroscopy
(Elsevier, 2021-03-05)
The martensitic transformation of Ni49.5Ti35.5Hf15 high temperature shape memory alloy is characterized by internal friction measurements. The temperatures for the reversible B2 <-> B19' transformation appear in the range ...
The Dynamics of Digits: Calculating Pi with Galperin’s Billiards
(MDPI, 2020-04-02)
In Galperin billiards, two balls colliding with a hard wall form an analog calculator for the digits of the number π . This classical, one-dimensional three-body system (counting the hard wall) calculates the digits of π ...
Magnetic and Photoluminescent Sensors Based on Metal-Organic Frameworks Built up from 2-aminoisonicotinate
(2020-06-01)
In this work, three isostructural metal-organic frameworks based on first row transition metal ions and 2-aminoisonicotinate (2ain) ligands, namely, {[M(mu-2ain)2]·DMF}n [MII=Co (1), Ni (2), Zn (3)], are evaluated for their ...
Single-Ion Magnet and Photoluminescence Properties of Lanthanide(III) Coordination Polymers Based on Pyrimidine-4,6-Dicarboxylate
(MDPI, 2021-01-04)
Herein, we report the magnetic and photoluminescence characterization of coordination polymers (CP) built from the combination of lanthanide(III) ions, pyrimidine-4,6-dicarboxylate (pmdc) ligand and a co-ligand with formula ...
European Cities in the Energy Transition: A Preliminary Analysis of 27 Cities
(MDPI, 2020-03-12)
Nowadays, there is a wide scientific consensus about the unsustainability of the current energy system and at the same time, social awareness about climate change and the IPCC’s goals is increasing in Europe. Amongst ...