magnetic-materilas-2017-posters-abstracts

13 / 27

alliedacademies
Mater Sci Nanotechnol 2017
Volume 1 Issue 3 Magnetic Materials 2017
Page 85
October 09-10, 2017 London, UK
International Conference on
From inception to completion, magnetismwas
the attraction
Bello Sambo
University of Huddersfield, UK
From the early stage of being an ingenuously scientifically
curious minded individual (creating a small electromagnet
yourself by connecting the ends of a copper wire to the
positive and negative ends of a cell battery), down to the
more conscious decisions of personally developing the skills
and tools to learn one or more of the many engineering fields
of study, there exist direct and constant contact with the
interesting phenomenon exhibited by magnetic materials.
Faraday’s Law of Induction dominates almost every aspect
of our domestic and industrial environment, ranging from
electric fans, microwave ovens, air conditioners, food
processors, washing machines, and heavy equipment driven
by motors. The interaction between magnetic materials on
the magnetic flux lines has virtually found relevance in most
engineering applications. Computer systems are essential for
processing data at the competitive speed and accuracy in this
time and age, equally important is an inexpensive means for
storing the processed data. This is mostly an application of
magnetizing tiny magnetic domains on the disc as in the case
of using floppy disks, magnetic tape, and hard disk drives. In
addition to storage, the transmission of data from one device
to the other is also a function of electromagnetic radiation
e.g. Bluetooth technology. Recent advances in research and
development have led to the realization a “proof of concept”
for magnetic field human body communication system which
uses the body as a vehicle to deliver magnetic energy between
electronic devices in the absence of a power boost typically
used to overcome the signal obstruction. This technology
offers 10 million times lower energy level compared to those
associated with Bluetooth radios. At the undergraduate level,
I was exposed to the concept of antenna theory, which not
only borders on telecommunication transmitter-receiver
applications, but also biomedical imaging such as MRI.
Further postgraduate studies in Engineering Control Systems
and Instrumentation brought out in the open the significance
of electromagnetic induction based actuators in experimental
and model-based projects. The relevance of magnetic
materials and magnetism became even more pronounced in
doctoral research project work related to railway research.
The application of magnetism in railway industry has indeed
proven to be successful in condition monitoring by means
of magnetic flux leakage (MFL) inspection technique, which
focuses on magnetizing the rail and then correlating exit
points (poles) to the presence, severity, and location surface
defects on rails. More revolutionary to the conventional train
track interaction is the utilization of the behavior of similar
and opposite poles for propulsion/levitation of the train on
the track (maglev train). The combination of a large electrical
power source, metal coils lining a track, and large guidance
magnets attached to the underside of the train enables Maglev
trains to attain speeds above the threshold 1000 [km/h] and
a levitation of between 1 and 10 [cm] above the track. The
novelty of the maglev technology lies in the substitution of
fossil fuels, which is replaced by the magnetic field created by
the electrified coils in the track and underside of the vehicle
which combine to propel the train in the direction of motion.
As a direct consequence of my personal experience with
magnetism related works, it is safe to say that it is not only
the different polarity of magnetic materials that experience
attraction but also the science and engineering world is bound
to the field of electromagnetism.
Materials Science and Nanotechnology