ENERGY BALANCE OF A MECHANICAL METHOD FOR DEMAGNETIZING PERMANENT MAGNETS

Authors

DOI:

https://doi.org/10.47820/recima21.v4i3.2854

Keywords:

Magnets, Mechanical demagnetization, Energy, Physics of materials

Abstract

Permanent magnets can be destroyed by certain improper mechanical manipulations that demagnetize them, reducing their induction and, consequently, their internal energy. This assay presents a cyclic mechanical manipulation of double action, evaluating the energy balance of the mechanical and magnetic forces involved throughout the whole procedure, noting a small release of energy from the magnet in the form of mechanical work.

Downloads

Download data is not yet available.

Author Biography

Renato Ricardo Antonio Linke

Graduated in Physics from the University of São Paulo - USP and with master's degree in Applied Physics.
Professional specialization in Energy Techniques and New Technologies in Germany.
Professional specialization in Vehicle Emission Control and Measurement in Germany and California.

References

ASTBURY, N. F. “Industrial Magnetic Testing”. London: The Institute of Physics, 1952, p. 121 e 122.

ENGINEERS EDGE. Magnetic force Lifting force Equetion and Calculator. [S. l.]: Engineers Edge, s. d. Disponível em: https://www.engineersedge.com/calculators/magnet-lifting/magnetic_force_calculator.htm. Acesso em: 13 dez. 2018.

FARIA, R. N.; LIMA, L. F. C. P. “Introdução ao Magnetismo dos Materiais”. São Paulo: Editora Livraria da Física, 2005, p. 60; 65; 115; 123; 127-128; 160; 164-165; 180.

FOLMER-JOHNSON, T.N.O., “Elementos de Magnetismo”. São Paulo: Livraria Nobel, 1968, p. 10-12; 129.

KOSHKIN, N.; SHIRKEVICH M. “Handbook of Elementary Physics”. Moscow: Mir Publishers, 1986, p. 140.

MCCAIG, M. “Demagnetization of Magnets Due Contact with Ferromagnetic Bodies”. Journal of Scientific Instruments, v. 3, p. 311-12, aug. 1956.

PARKER, R. J.; STUDDERS, R. “Permanent Magnets and their Application”. New York: John Wiley and Sons, 1962, p. 32; 89-90; 144; 294-295.

SILVEIRA, F. L. Como se calcula a energia magnética em um imã. Porto Alegre: Creff, 2014. Disponível em: https://www.if.ufrgs.br/novocref/?contact-pergunta=como-se-calcula-a-energia-magnetica-em-um-ima. Acesso em: 10 set. 2018.

STEINGROEVER, GmbH. “Magnetisieren, Entmagnetisieren und Kalibrieren von Permanent-Magnetsystemen”. Cologne: Dr. Steingroever GmbH, 1992, p. 12.

ZUBOV, V.; SHALNOV, V. Problems in Physics. Moscow: MIR Publishers, 1974, p. 262.

Downloads

Published

06/03/2023

How to Cite

Linke, R. R. A. (2023). ENERGY BALANCE OF A MECHANICAL METHOD FOR DEMAGNETIZING PERMANENT MAGNETS. RECIMA21 - Revista Científica Multidisciplinar - ISSN 2675-6218, 4(3), e432854. https://doi.org/10.47820/recima21.v4i3.2854

Issue

Vol. 4 No. 3 (2023): EDITORIAL - CLICK HERE TO ACCESS THE ARTICLES

Section

ARTIGOS

Categories

License

Copyright (c) 2023 RECIMA21 - Revista Científica Multidisciplinar - ISSN 2675-6218

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Os direitos autorais dos artigos/resenhas/TCCs publicados pertecem à revista RECIMA21, e seguem o padrão Creative Commons (CC BY 4.0), permitindo a cópia ou reprodução, desde que cite a fonte e respeite os direitos dos autores  e contenham menção aos mesmos nos créditos. Toda e qualquer obra publicada na revista, seu conteúdo é de responsabilidade dos autores, cabendo a RECIMA21 apenas ser o veículo de divulgação, seguindo os padrões nacionais e internacionais de publicação.