scholarly journals Analysis of the Flow of Magnetoelastic Materials

PAMM ◽  
2016 ◽  
Vol 16 (1) ◽  
pp. 663-664 ◽  
Author(s):  
Barbora Benešová ◽  
Johannes Forster ◽  
Carlos García-Cervera ◽  
Chun Liu ◽  
Anja Schlömerkemper
Keyword(s):  
Magnetoelastic Materials

Chiral domain walls in frustrated magnetoelastic materials

2002 ◽  
Vol 66 (14) ◽  
Author(s):  
Yu. B. Gaididei ◽  
A. Saxena ◽  
T. Lookman ◽  
A. R. Bishop ◽  
H. Büttner
Keyword(s):  
Domain Walls ◽  
Magnetoelastic Materials

Mini-Workshop: Mathematics of Magnetoelastic Materials

2017 ◽  
Vol 13 (4) ◽  
pp. 2909-2940
Author(s):  
Carlos García-Cervera ◽  
Martin Kružík ◽  
Chun Liu ◽  
Anja Schlömerkemper
Keyword(s):  
Magnetoelastic Materials

Magnetoelastic Viscosity Sensor for Lubricant Oil Condition Monitoring

2011 ◽  
Vol 495 ◽  
pp. 71-74
Author(s):  
I. Bravo-Imaz ◽  
A. García-Arribas ◽  
E. Gorritxategi ◽  
M. Hernaiz ◽  
A. Arnaiz ◽  
...  
Keyword(s):  
Real Time ◽  
Condition Monitoring ◽  
Environmental Issues ◽  
Real Time Monitoring ◽  
Oil Viscosity ◽  
Lubricant Oil ◽  
On Line ◽  
Magnetoelastic Materials ◽  
Working Device

Actual trends in machinery maintenance point to the necessity of an on-line real-time monitoring of the condition of the lubricant oil. Excessive delay in replacing the lubricant oil can have catastrophic results, whereas doing it too early produces evident economic and environmental issues. Magnetoelastic materials offer a good sensing principle for assessing lubricant oil viscosity; which is one of the most important properties to assure its proper lubricant capacity. Among others, one of the most remarkable properties of this sensing principle is the capability of being used through a wide viscosity range. In this work, we describe the experiments performed to evaluate the usefulness of this technology for testing the viscosity of different test oils in order to develop a working device for on-line, real-time monitoring the quality of lubricant oils.

Magnetoelastic Materials as Novel Bioactive Coatings for the Control of Cell Adhesion

2011 ◽  
Vol 58 (3) ◽  
pp. 698-704 ◽  
Author(s):  
E Vlaisavljevich ◽  
L P Janka ◽  
K G Ong ◽  
R M Rajachar
Keyword(s):  
Cell Adhesion ◽  
Bioactive Coatings ◽  
Magnetoelastic Materials

Modeling of Magnetoelastic Materials for Force and Torque Sensors

2008 ◽  
Vol 144 ◽  
pp. 124-129 ◽  
Author(s):  
Roman Szewczyk ◽  
Jacek Salach ◽  
Adam Bieńkowski
Keyword(s):  
Amorphous Materials ◽  
Magnetic Hysteresis ◽  
Compressive Force ◽  
Hysteresis Loops ◽  
Evolutionary Strategies ◽  
Model Parameters ◽  
Extended Model ◽  
Gradient Optimization ◽  
Magnetoelastic Materials ◽  
Experimental Findings

The paper presents a new idea of extension of the Jiles-Atherton-Sablik model for modeling of the influence of mechanical stresses on magnetic hysteresis loops of amorphous alloys. In the extended model changes of parameter k are considered during the magnetization and the influence of stresses on eight parameters of the Jiles-Atherton-Sablik model is taken into account. Verification of the model was carried out on the base of experimental results obtained for Fe40Ni38Mo4B18 amorphous alloy subjected to both stress from external compressive force as well as shearing stresses from torque. In the experiment uniform stress distribution was achieved in both cases due to special mechanical system of backings. Evolutionary strategies were used in conjunction with gradient optimization for calculation of the model parameters. Results of simulation are in good agreement with experimental findings. As a result the extended Jiles- Atherton-Sablik model enables modeling of the magnetoelastic characteristics of amorphous materials for mechatronic inductive components such as compressive stress and torque sensors.

Biodegradation and biocompatibility of mechanically active magnetoelastic materials

2014 ◽  
Vol 23 (9) ◽  
pp. 095036 ◽  
Author(s):  
Hal R Holmes ◽  
Andrew DeRouin ◽  
Samantha Wright ◽  
Travor M Riedemann ◽  
Thomas A Lograsso ◽  
...  
Keyword(s):  
Magnetoelastic Materials

scholarly journals The Effect of the Thermal Annealing Process to the Sensing Performance of Magnetoelastic Ribbon Materials

2021 ◽  
Vol 13 (24) ◽  
pp. 13947
Author(s):  
Georgios Samourgkanidis ◽  
Kostantis Varvatsoulis ◽  
Dimitris Kouzoudis
Keyword(s):  
Thermal Annealing ◽  
Magnetic Hysteresis ◽  
Environmental Parameters ◽  
Bias Field ◽  
Annealing Process ◽  
Signal Enhancement ◽  
Internal Stresses ◽  
Practical Applications ◽  
Magnetoelastic Materials ◽  
Material Energy

The magnetoelastic materials find many practical applications in everyday life like transformer cores, anti-theft tags, and sensors. The sensors should be very sensitive so as to be able to detect minute quantities of miscellaneous environmental parameters, which are very critical for sustainability such as pollution, air quality, corrosion, etc. Concerning the sensing sensitivity, the magnetoelastic material can be improved, even after its production, by either thermal annealing, as this method relaxes the internal stresses caused during manufacturing, or by applying an external DC magnetic bias field during the sensing operation. In the current work, we performed a systematic study on the optimum thermal annealing parameters of magnetoelastic materials and the Metglas alloy 2826 MB3 in particular. The study showed that a 100% signal enhancement can be achieved, without the presence of the bias field, just by annealing between 350 and 450 °C for at least half an hour. A smaller signal enhancement of 15% can be achieved with a bias field but only at much lower temperatures of 450 °C for a shorter time of 20 min. The magnetic hysteresis measurements show that during the annealing process, the material reorganizes itself, changing both its anisotropy energy and magnetostatic energy but in such a way such that the total material energy is approximately conserved.

Magnetoelastic Materials as Novel Bioactive Coatings to Improve Integration of Percutaneous Implants

2011 ◽  
Author(s):  
Hal Holmes ◽  
Eli Vlaisavljevich ◽  
Ee Lim Tan ◽  
Keat G. Ong ◽  
Rupak M. Rajachar
Keyword(s):  
Extracellular Matrix ◽  
Host Response ◽  
Biomedical Implants ◽  
Risk Of Infection ◽  
Bioactive Coatings ◽  
Increased Risk ◽  
Ultimate Failure ◽  
Magnetoelastic Materials ◽  
Percutaneous Implants ◽  
Fibroblastic Activity

Fibroblastic activity is an innate function of the host response. In the presence of many percutaneous biomedical implants, this activity becomes uncontrollable, resulting in significant fibrous overgrowth at the soft tissue-implant interface [1]. The aberrant cell growth associated with pathological fibrosis can lead to extensive remodeling and excessive synthesis of extracellular matrix (ECM) components, preventing proper integration [2]. Furthermore, these areas of irregular fibrotic activity can also serve as sites for opportunistic infection [3]. In brief, interfacial fibrosis is often responsible for the ultimate failure and increased risk of infection of percutaneous biomedical implants.

Magnetoelastic Materials as Novel Bioactive Coatings for Bone Anchored Prostheses

2009 ◽  
Author(s):  
Eli Vlaisavljevich ◽  
Logan P. Janka ◽  
Keat G. Ong ◽  
Rupak M. Rajachar
Keyword(s):  
Soft Tissue ◽  
Mechanical Stability ◽  
Cellular Growth ◽  
Bioactive Coatings ◽  
Extracellular Matrix Components ◽  
Anchoring System ◽  
Magnetoelastic Materials ◽  
External Connection ◽  
The Stability ◽  
A Site

Enhanced fibroblast activity at the implant-soft tissue interface is a key concern to the long-term success of many implanted biomaterials. Uncontrolled fibrosis has been shown to dramatically decrease the stability, function, and lifespan of biomedical implants. Fibrosis, defined as the overgrowth of various tissues about the implant, is caused by the excess synthesis of extracellular matrix components, primarily collagen, and often leads to walling off and hardening (calcification) of tissues at the biomaterial interface (1). Fibrosis is currently a major deterrent to stable bone anchored prostheses. These bone anchored mounting systems are designed to surgically attach a prosthesis mounting post directly into a patient’s bone. The attached post protrudes from the bone through the overlying soft tissue of the amputated limb providing an external connection point for the prosthetic. Although the bone anchoring system dramatically improves prosthetic limb mechanical stability, uncontrolled fibrosis at the soft tissue-mounting post interface is a significant problem (2). The fibrosis caused from aberrant cellular growth leads to the formation of irregular skin folds that prevent proper sealing to the bone anchoring post and also serves as a site for opportunistic infection and failure of the prosthetic system.

scholarly journals A Review of Thin-Film Magnetoelastic Materials for Magnetoelectric Applications

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1532 ◽  
Author(s):  
Xianfeng Liang ◽  
Cunzheng Dong ◽  
Huaihao Chen ◽  
Jiawei Wang ◽  
Yuyi Wei ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Dynamic Properties ◽  
Early Research ◽  
Future Application ◽  
Multiferroic Materials ◽  
Open Questions ◽  
Fabrication And Characterization ◽  
Magnetoelastic Materials

Since the revival of multiferroic laminates with giant magnetoelectric (ME) coefficients, a variety of multifunctional ME devices, such as sensor, inductor, filter, antenna etc. have been developed. Magnetoelastic materials, which couple the magnetization and strain together, have recently attracted ever-increasing attention due to their key roles in ME applications. This review starts with a brief introduction to the early research efforts in the field of multiferroic materials and moves to the recent work on magnetoelectric coupling and their applications based on both bulk and thin-film materials. This is followed by sections summarizing historical works and solving the challenges specific to the fabrication and characterization of magnetoelastic materials with large magnetostriction constants. After presenting the magnetostrictive thin films and their static and dynamic properties, we review micro-electromechanical systems (MEMS) and bulk devices utilizing ME effect. Finally, some open questions and future application directions where the community could head for magnetoelastic materials will be discussed.

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