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We characterize perovskite TiF_3, a material which displays significant negative thermal expansion at elevated temperatures above its cubic-to-rhombohedral structural phase transition at 330 K. We find the optical response favors an…

We introduce a model for zwitterionic monolayers and investigate its tribological response to changes in applied load, sliding velocity, and temperature by means of molecular-dynamics simulations. The proposed model exhibits different…

Soft Condensed Matter · Physics 2022-02-14 Melisa M. Gianetti , Roberto Guerra , Andrea Vanossi , Michael Urbakh , Nicola Manini

Ternary half Heusler alloys are under intense investigations recently towards achieving high thermoelectric figure-of-merit (ZT). Of particular interest is the ZrNiPb based half Heusler (HH) alloy where an optimal value of ZT = 0.7 at 773 K…

Materials Science · Physics 2022-08-30 Amardeep Sagar , Aman Bhardwaj , Andrei Novitskii , Vladimir Khovaylo , Satyabrata Patnaik

The joining of ceramics with metals have been extensively used in applications requiring high strength and excellent heat insulation. However, evaluating the residual stress generated inevitably due to the mismatch in coefficients of…

Applied Physics · Physics 2019-07-23 Wenbin Zhou , Rubing Zhang , Shigang Ai , Yongmao Pei , Daining Fang

Accurate knowledge of mechanical and thermal properties of structural materials used in MEMS is essential for optimum geometric and functional design. The extraction of precise physical properties is rather complicated due to the size…

General Physics · Physics 2008-01-08 P. Furjes , P. Csikvari , I. Bársony , Cs. Ducso

The incredible thermo-mechanical properties of biological materials arise from the microscopic scale due to a complex hierarchical mechanism, regulated by microinstabilities at the molecular level. The description of such complex structures…

Biological Physics · Physics 2022-10-26 Luca Bellino

Single crystalline bismuth (Bi) is known to have a peculiar electronic structure which is very close to the topological phase transition. The modification of the surface states of Bi depending on the temperature are revealed by…

Materials Science · Physics 2019-04-17 Y. Ohtsubo , Y. Yamashita , J. Kishi , S. Ideta , K. Tanaka , H. Yamane , J. E. Rault , P. Le Fèvre , F. Bertran , S. Kimura

The microstructural features and high-temperature oxidation resistance of hybrid (TiC+TiB) networks reinforced Ti-6Al-4V composites were investigated after fabricated with reaction hot pressing technique. The inhomogeneous distribution of…

Materials Science · Physics 2019-11-26 Shaolou Wei , Lujun Huang , Xinting Li , Qi An , Lin Geng

Ternary transition metal nitrides (TMNs) promise to significantly expand the material design space by opening new functionality and enhancing existing properties. However, most systems have only been investigated computationally and limited…

The ZrCo intermetallic was proposed as tritium storage material in the International Thermonuclear Experimental Reactors (ITER) project. The thermodynamic properties of ZrCo intermetallic were investigated both experimentally and…

Materials Science · Physics 2015-01-30 D. Chattaraj , Ram Avtar Jat , S. C. Parida , Renu Agarwal , Smruti Dash

The paper presents a new approach, based on controlled oxidation of nanoscale metallic multilayers, to produce strong and hard oxide/metal nanocomposite coatings with high strength and good thermal stability. The approach is demonstrated by…

Materials Science · Physics 2016-09-23 M. A. Monclús , M. Callisti , T. Polcar , L. W. Yang , J. LLorca , J. M. Molina-Aldareguía

We have devised an isotropic interaction potential that gives rise to negative thermal expansion (NTE) behavior in equilibrium many-particle systems in both two and three dimensions over a wide temperature and pressure range (including zero…

Materials Science · Physics 2008-07-24 Mikael C. Rechtsman , Frank H. Stillinger , Salvatore Torquato

Fractal metamaterial superconductor geometry has been suggested and analyzed based on the recently developed theoretical description of critical temperature increase in epsilon near zero (ENZ) metamaterial superconductors. Considerable…

Superconductivity · Physics 2017-04-26 Igor I. Smolyaninov , Vera N. Smolyaninova

Mn-Zn ferrite nanoparticles have been subject of increasing research due to their desired properties for a wide range of applications. These properties include nanometer particle size control, tunable magnetic properties and low toxicity,…

Materials Science · Physics 2020-06-03 A. Horta

At temperatures well below their glass transition, the deformation properties of bulk metallic glasses are characterised by a sharp transition from elasticity to plasticity, a reproducible yield stress, and an approximately linear decrease…

Soft Condensed Matter · Physics 2013-11-18 P. M. Derlet , R. Maaß

The presence of thermal gradients in alloys often leads to non-uniformity in concentration profiles, which can induce the thermomigration of microstructural features such as precipitates. To investigate such microstructural changes, we…

Materials Science · Physics 2024-06-04 Sandip Guin , Soumya Bandyopadhyay , Saswata Bhattacharyya , Rajdip Mukherjee

Results presented in this article demonstrate importance of taking into account such a phenomenon as the solid solution decomposition at the boundaries separating coexisting phases in lead-zirconate-titanate-based solid solutions with…

Materials Science · Physics 2016-10-21 V. M. Ishchuk , D. V. Kuzenko , V. L. Sobolev

The effect of temperature in high purity Ar (low oxygen partial pressure) on the oxidation and crystal phase evolution of c-Al0.66Ti0.33N arc-PVD coatings was investigated. High temperature tribology in Ar jet and adhesion behavior of the…

Ferroelectric ceramics (Ba0.85Ca0.15)(Ti0.9Zr0.1-xSnx)O3 (x=0.00, 0.02, 0.04, 0.06) were prepared by a sol-gel method. Structural investigation revealed the co-existence of tetragonal (P4mm) and orthorhombic (Pmm2) symmetries at room…

The structural evolution with temperature of pure silica (SiO2), sodium-silicate (5Na2O-95SiO2, 10Na2O-90SiO2 and 25Na2O-75SiO2) and albite (15Na2O-15Al2O3-75SiO2) glasses previously densified from hot compression is monitored with a…