Magnetic strength compatibilization of soft magnetic composites using a magnetic force sensor

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master_de_Rozieres_Gentilhomme_de_Laveline_Maximilian_2020.pdf (7.06 MB)

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Perustieteiden korkeakoulu | Master's thesis
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Date

2020-08-18

Department

Major/Subject

Advanced Materials for Innovation and Sustainability

Mcode

SCI3083

Degree programme

Master’s Programme in Advanced Materials for Innovation and Sustainability

Language

en

Pages

64 + 13

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Abstract

In this thesis, Fe-based Soft Magnetic Composites (SMC) varying in thermoset resins are prepared using a variety of metallurgical techniques. Their magnetic properties are then studied, tested, then compared with each other. Three various resins were used for specimen preparation: Biresin CR131, G/Flex, and Biothan. The magnetic pull strength between the SMC samples and a permanent magnet (PM) was measured, with respect to each other's distances, using a device I built entirely with limited resources available. This device is called a magnetic force sensor (MFS). The details and methodology used to construct this device will be clearly described within this paper. A finite element method software is used to compare and validate the credibility of the MFS. The outcome proves to corroborate my device's capabilities as a credible tool for research. Of the SMC experiments taken with the device, resin base CR131 showed the strongest magnetic response to the PM while Biothan showed the weakest response. The quality of SMC due to preparation will be a key topic of my results and discussion.

Description

Supervisor

Timonen, Jaakko

Thesis advisor

Lundahl, Meri

Keywords

soft magnetic composite, magnetic strength, soft magnetic materials, resin

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https://urn.fi/URN:NBN:fi:aalto-202008245145

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[dipl] Perustieteiden korkeakoulu / SCI