Results 21 to 30 of about 28,813 (217)

Active Control of Sandwich Microbeams Vibration with FGM and Viscoelastic/ER Core [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2023
This study is devoted to analyse of free and forced vibrations and semi-active control vibrations of sandwich microbeam with Functionally Graded Materials (FGM) and viscoelastic/electrorheological (ER) core.
Amir Hossein Yousefi, farhad kiani, Esmaeil Abedi   +2 more
doaj   +1 more source

High-frequency electric modulus, impedance and conductance studies of gadolinium/niobium substituted barium titanate-lithium ferrite solids

Hybrid Advances, 2023
Using conventional solid-state techniques, BaTiO3- Li0.5Fe2.5O4composites doped with Gd/Nb are prepared. Investigations are made on the electric and micro-structural characteristics of composites at high frequencies.
Ganapathi Rao Gajula, Lakshmi Rekha Buddiga, B.B.V. Sailaja   +2 more
doaj   +1 more source

Modulus spectroscopy for the detection of parallel electric responses in electroceramics

Journal of Materiomics, 2022
Impedance spectroscopy has become one of the most versatile and essential investigation methods concerning electrical properties of materials for electronic and energy applications.
Till Frömling, Yao Liu, An-Phuc Hoang, Maximillian Gehringer, Sebastian Steiner, Mikalai Zhuk, Julia Glaum, Bai-Xiang Xu   +7 more
doaj   +1 more source

Dataset for correlation in γ-RbAg4I5 between ionic conductivity relaxation and specific heat

Data in Brief, 2019
Using the ac-calorimetry technique and the electric modulus formalism for analysis of ionic conductivity relaxation in crystalline γ-RbAg4I5, close to the γ to β phase transition at 120 K, the temperature derivative of microscopic interaction energy for ...
H. Correa, Alvaro Garcia Muriel, D. Peña Lara   +2 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Investigation of frequency dependent electrical and dielectric properties of maple wood (acer trautvetteri medw.) with different surface treatments

Drewno
In this study, the electrical and dielectric properties of maple wood (Acer trautvetteri Medw.) were comprehensively investigated under three different surface conditions: untreated control (CW), two-week water immersion (SW), and double varnish (VW), as
Beytullah Bozali
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source