Performance of vibration power generators using single crystal and polycrystal magnetic cores of Fe-Ga alloys

Shun Fujieda, Naoki Gorai, Toru Kawamata, Rayko Simura, Tsuguo Fukuda, Shigeru Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The performance of a vibration power generator using a single crystal core of Fe-Ga alloy was compared with that of a generator using a Fe-Ga alloy polycrystal core with a similar Ga concentration. When the generator using the polycrystal core was forcibly vibrated by 1-G acceleration, the vibration frequency dependence of the open-circuit voltage showed a peak with a maximum value of about 0.14 V at the first resonance frequency due to the inverse magnetostrictive effect. On the other hand, the generator using a single crystal core with a <100> direction parallel to the external stress direction exhibited a maximum value of about 0.26 V, about two-times larger than that of the device using the polycrystal core. Consequently, a vibration energy generator using a single crystal core of Fe-Ga alloy has advantages in performance over a generator using a polycrystal core.

Original languageEnglish
Title of host publicationTHERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications
EditorsMihail Ionescu, Christof Sommitsch, Cecilia Poletti, Ernst Kozeschnik, Tara Chandra
PublisherTrans Tech Publications Ltd
Pages453-457
Number of pages5
ISBN (Print)9783035736304
DOIs
Publication statusPublished - 2021
EventInternational Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications, THERMEC 2021 - Vienna, Austria
Duration: 2021 May 102021 May 14

Publication series

NameMaterials Science Forum
Volume1016 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceInternational Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications, THERMEC 2021
CountryAustria
CityVienna
Period21/5/1021/5/14

Keywords

  • Energy harvesting
  • Inverse magnetostrictive effect
  • Magnetostriction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Performance of vibration power generators using single crystal and polycrystal magnetic cores of Fe-Ga alloys'. Together they form a unique fingerprint.

Cite this