Joule heat welding of thin wires to thin films

To effectively use micro or nano materials and create advanced materials systems from them, welding techniques for such small scale materials are vital. For this purpose, the tips of two thin wires were welded together with Joule heat and the conditions required to achieve it was discovered experime...

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Autores principales:	Hironori TOHMYOH, Masato FUJIMORI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2014
Materias:	joule heat welding thin wire thin film heat conduction Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/67088d8195bc42678a85b02ce5fdb78e
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spelling	oai:doaj.org-article:67088d8195bc42678a85b02ce5fdb78e2021-11-26T06:05:34ZJoule heat welding of thin wires to thin films2187-974510.1299/mej.2014smm0010https://doaj.org/article/67088d8195bc42678a85b02ce5fdb78e2014-06-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/1/3/1_2014smm0010/_pdf/-char/enhttps://doaj.org/toc/2187-9745To effectively use micro or nano materials and create advanced materials systems from them, welding techniques for such small scale materials are vital. For this purpose, the tips of two thin wires were welded together with Joule heat and the conditions required to achieve it was discovered experimentally. In this paper, the Joule heat welding of thin wires to thin films deposited on substrates is described. To derive the conditions required to achieve this, a heat conduction model for a cylindrical element in the film located at the contact between the wire and the film is considered and the critical thickness of the film above which the welding conditions are independent of film thickness is derived analytically. The validity of the heat conduction model was experimentally verified by welding 0.8 μm diameter Pt wires onto thin Pt films on electrically-insulated substrates. The experiments are performed for various combinations of the length of the wire and the thickness of the films. The current required for welding the wires onto the films having the thickness over the critical thickness are investigated and the conditions required for the welding are found to be coincident with those for welding the tips of two wires with Joule heat.Hironori TOHMYOHMasato FUJIMORIThe Japan Society of Mechanical Engineersarticlejoule heatweldingthin wirethin filmheat conductionMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 1, Iss 3, Pp SMM0010-SMM0010 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	joule heat welding thin wire thin film heat conduction Mechanical engineering and machinery TJ1-1570
spellingShingle	joule heat welding thin wire thin film heat conduction Mechanical engineering and machinery TJ1-1570 Hironori TOHMYOH Masato FUJIMORI Joule heat welding of thin wires to thin films
description	To effectively use micro or nano materials and create advanced materials systems from them, welding techniques for such small scale materials are vital. For this purpose, the tips of two thin wires were welded together with Joule heat and the conditions required to achieve it was discovered experimentally. In this paper, the Joule heat welding of thin wires to thin films deposited on substrates is described. To derive the conditions required to achieve this, a heat conduction model for a cylindrical element in the film located at the contact between the wire and the film is considered and the critical thickness of the film above which the welding conditions are independent of film thickness is derived analytically. The validity of the heat conduction model was experimentally verified by welding 0.8 μm diameter Pt wires onto thin Pt films on electrically-insulated substrates. The experiments are performed for various combinations of the length of the wire and the thickness of the films. The current required for welding the wires onto the films having the thickness over the critical thickness are investigated and the conditions required for the welding are found to be coincident with those for welding the tips of two wires with Joule heat.
format	article
author	Hironori TOHMYOH Masato FUJIMORI
author_facet	Hironori TOHMYOH Masato FUJIMORI
author_sort	Hironori TOHMYOH
title	Joule heat welding of thin wires to thin films
title_short	Joule heat welding of thin wires to thin films
title_full	Joule heat welding of thin wires to thin films
title_fullStr	Joule heat welding of thin wires to thin films
title_full_unstemmed	Joule heat welding of thin wires to thin films
title_sort	joule heat welding of thin wires to thin films
publisher	The Japan Society of Mechanical Engineers
publishDate	2014
url	https://doaj.org/article/67088d8195bc42678a85b02ce5fdb78e
work_keys_str_mv	AT hironoritohmyoh jouleheatweldingofthinwirestothinfilms AT masatofujimori jouleheatweldingofthinwirestothinfilms
_version_	1718409781577777152

Joule heat welding of thin wires to thin films

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