Smart washers to measure bolt loads using magnetostrictive Galfenol

2015 ◽  
Author(s):  
Ganesh Raghunath ◽  
Brett Barkley ◽  
Alison B. Flatau
Keyword(s):  
Magnetostrictive Galfenol

Composition and crystallinity in electrochemically deposited magnetostrictive galfenol (FeGa)

2014 ◽  
Vol 115 (17) ◽  
pp. 17A918 ◽  
Author(s):  
Eliot C. Estrine ◽  
Matt Hein ◽  
William P. Robbins ◽  
Bethanie J. H. Stadler
Keyword(s):  
Electrochemically Deposited ◽  
Magnetostrictive Galfenol

J0404-8-1 Application of New Iron-based Magnetostrictive Galfenol Torque Sensor for Steering-by-wire Control System in Automobile.

2010 ◽  
Vol 2010.6 (0) ◽  
pp. 335-336 ◽  
Author(s):  
Yasubumi FURUYA ◽  
Kazumi OKADA ◽  
Kazuyuki KURIBAYASHI ◽  
Takeo CHINEN ◽  
Teiko OKAZAKI ◽  
...  
Keyword(s):  
Control System ◽  
Torque Sensor ◽  
Iron Based ◽  
Magnetostrictive Galfenol

Electrodeposition and characterization of magnetostrictive galfenol (FeGa) thin films for use in microelectromechanical systems

2013 ◽  
Vol 113 (17) ◽  
pp. 17A937 ◽  
Author(s):  
Eliot C. Estrine ◽  
William P. Robbins ◽  
Mazin M. Maqableh ◽  
Bethanie J. H. Stadler
Keyword(s):  
Thin Films ◽  
Microelectromechanical Systems ◽  
Magnetostrictive Galfenol

Modeling of magnetostrictive Galfenol sensor and validation using four point bending test

2007 ◽  
Vol 101 (9) ◽  
pp. 09C521 ◽  
Author(s):  
Supratik Datta ◽  
Jayasimha Atulasimha ◽  
Alison B. Flatau
Keyword(s):  
Bending Test ◽  
Four Point Bending ◽  
Four Point Bending Test ◽  
Magnetostrictive Galfenol

Bulky Material Process Based on Rapid-Solidified Magnetostrictive GALFENOL

2003 ◽  
Vol 2003.11 (0) ◽  
pp. 83-84
Author(s):  
Chihiro SAITO ◽  
Yasubumi FURUYA ◽  
Teiko OKAZAKI ◽  
Mamoru OMORI ◽  
Akira OKUBO ◽  
...  
Keyword(s):  
Material Process ◽  
Magnetostrictive Galfenol

Texture Development in Polycrystalline Fe-Ga Magnetostrictive Materials

2007 ◽  
Vol 539-543 ◽  
pp. 3460-3465 ◽  
Author(s):  
Leon M. Cheng ◽  
Eric Summers
Keyword(s):  
Eddy Current ◽  
Crystallographic Texture ◽  
Deformation Process ◽  
Dynamic Recovery ◽  
Texture Evolution ◽  
Thin Sheet ◽  
Grain Orientations ◽  
Device Applications ◽  
Formation Of Cracks ◽  
Magnetostrictive Galfenol

Magnetostrictive Galfenol (Fe-Ga) is a promising and mechanically robust actuator material. Single crystals of Galfenol have been shown to exhibit up to 400 ppm magnetostrictive strains with saturating fields of several hundred oersteds. However, due to the high conductivity of Galfenol, it needs to be in thin sheet form for many device applications to avoid eddy current loses. One of the main challenges in producing engineering components from these materials is shaping of these materials while retaining a preferred crystallographic texture to optimize the magnetostrictive performance of the polycrystals. In this work, the effects of rolling on texture evolution of polycrystalline Galfenol are being investigated. Results from hot rolling experiments showed that careful control of rolling conditions can minimize the formation of cracks. They also suggested that significant dynamic recovery and recrystallization occurred during the deformation process, resulting in a large number of grain orientations with very little texture. Preliminary results also showed that the specimens can be successfully warm rolled to a thickness of less than 0.5 mm.

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