Realization of diamagnetic levitation of column-shaped graphite

The completely passive levitation of a column-shaped graphite object is achieved. Graphite is a typical diamagnetic material. Diamagnetic materials have a property of generating repulsive force in magnetic field. Most diamagnetic levitation systems use high-oriented pyrolytic graphite (PG) sheets be...

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Autores principales:	Keisuke IIDA, Yoshinori NARISAWA, Yuji ISHINO, Masaya TAKASAKI, Takeshi MIZUNO
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2015
Materias:	graphite diamagnetism permanent magnet halbach array levitation force Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/5deb4f4ea532430a858eccfd26e8b86e
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spelling	oai:doaj.org-article:5deb4f4ea532430a858eccfd26e8b86e2021-11-26T06:25:42ZRealization of diamagnetic levitation of column-shaped graphite2187-974510.1299/mej.14-00559https://doaj.org/article/5deb4f4ea532430a858eccfd26e8b86e2015-03-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/2/3/2_14-00559/_pdf/-char/enhttps://doaj.org/toc/2187-9745The completely passive levitation of a column-shaped graphite object is achieved. Graphite is a typical diamagnetic material. Diamagnetic materials have a property of generating repulsive force in magnetic field. Most diamagnetic levitation systems use high-oriented pyrolytic graphite (PG) sheets because sufficient force for levitation is easily obtained. In contrast, column-shaped graphites are proposed as the target of levitation in this work. Experimental apparatus for diamagnetic levitation is fabricated. The apparatus uses a two-dimensional Halbach array made of cubic neodymium magnets. The magnetic fields in the apparatus are analyzed numerically and experimentally. It is shown that the stable diamagnetic levitation of a column-shaped graphite can be achieved. The floator is fabricated by combining the pencil leads made from graphite. Then the diamagnetic forces acting on the floator are measured. In addition, the effects of anisotropy of graphite on the levitation characteristics are discussed.Keisuke IIDAYoshinori NARISAWAYuji ISHINOMasaya TAKASAKITakeshi MIZUNOThe Japan Society of Mechanical Engineersarticlegraphitediamagnetismpermanent magnethalbach arraylevitation forceMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 2, Iss 3, Pp 14-00559-14-00559 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	graphite diamagnetism permanent magnet halbach array levitation force Mechanical engineering and machinery TJ1-1570
spellingShingle	graphite diamagnetism permanent magnet halbach array levitation force Mechanical engineering and machinery TJ1-1570 Keisuke IIDA Yoshinori NARISAWA Yuji ISHINO Masaya TAKASAKI Takeshi MIZUNO Realization of diamagnetic levitation of column-shaped graphite
description	The completely passive levitation of a column-shaped graphite object is achieved. Graphite is a typical diamagnetic material. Diamagnetic materials have a property of generating repulsive force in magnetic field. Most diamagnetic levitation systems use high-oriented pyrolytic graphite (PG) sheets because sufficient force for levitation is easily obtained. In contrast, column-shaped graphites are proposed as the target of levitation in this work. Experimental apparatus for diamagnetic levitation is fabricated. The apparatus uses a two-dimensional Halbach array made of cubic neodymium magnets. The magnetic fields in the apparatus are analyzed numerically and experimentally. It is shown that the stable diamagnetic levitation of a column-shaped graphite can be achieved. The floator is fabricated by combining the pencil leads made from graphite. Then the diamagnetic forces acting on the floator are measured. In addition, the effects of anisotropy of graphite on the levitation characteristics are discussed.
format	article
author	Keisuke IIDA Yoshinori NARISAWA Yuji ISHINO Masaya TAKASAKI Takeshi MIZUNO
author_facet	Keisuke IIDA Yoshinori NARISAWA Yuji ISHINO Masaya TAKASAKI Takeshi MIZUNO
author_sort	Keisuke IIDA
title	Realization of diamagnetic levitation of column-shaped graphite
title_short	Realization of diamagnetic levitation of column-shaped graphite
title_full	Realization of diamagnetic levitation of column-shaped graphite
title_fullStr	Realization of diamagnetic levitation of column-shaped graphite
title_full_unstemmed	Realization of diamagnetic levitation of column-shaped graphite
title_sort	realization of diamagnetic levitation of column-shaped graphite
publisher	The Japan Society of Mechanical Engineers
publishDate	2015
url	https://doaj.org/article/5deb4f4ea532430a858eccfd26e8b86e
work_keys_str_mv	AT keisukeiida realizationofdiamagneticlevitationofcolumnshapedgraphite AT yoshinorinarisawa realizationofdiamagneticlevitationofcolumnshapedgraphite AT yujiishino realizationofdiamagneticlevitationofcolumnshapedgraphite AT masayatakasaki realizationofdiamagneticlevitationofcolumnshapedgraphite AT takeshimizuno realizationofdiamagneticlevitationofcolumnshapedgraphite
_version_	1718409778689998848

Realization of diamagnetic levitation of column-shaped graphite

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