Magnetics Business & Technology - Winter 2017 - 23

MAGNETICS 2018 CONFERENCE PREVIEW

Conference Program
High Energy Ferrites Compete with Bonded Neo
Magnets
Ferrites have long been in usage but with the advent of rare
earth magnets some of the applications that use ferrite were
converted to Neo magnets. Neo magnets gives the same performance to ferrite but with a weight reduction of 90+ percent.
The recent desire to lessen the dependence on China, which
control the raw materials for rare earth magnets alternate approaches are being taken. This presentation details the development of higher energy ferrites, reviews the current state of
rare earth magnets and offers a solution to the rare earth crisis.
Kalathur (Sim) Narasimhan, P2PTechnologies

Permanent Magnet Specifications: What About all
Those Non-Magnetic Properties?
This presentation will discuss the non-magnetic properties
such as Tensile or Yield Strength, Hardness and others. The origin of some of the values will be discussed, the limitations on
the measurements and why they shouldn't be used as controlling parameters on drawings or specifications.
Michael Devine, Sr App Engineer, Adams Magnetic Products

Rare Earth Permanent Magnets for Rotary Machines
Rare earth permanent magnets are commonly used in permanent magnet motors and generators. The magnetic circuit
design, magnet grade selections, magnetic specifications, magnetic testing, magnet brittleness and handling, assembly techniques, in situ magnetization of rotors, containment band, rotor testing, and some possible failure mode of magnet rotors
will be the focus of this talk.
Jinfang Liu, President & COO, Electron Energy Corp.

Building Your Magnetic Field Mapper with LEGO
We will present a prototype of a modular, easily reconfigurable
system for mapping magnetic fields. The basic module is a
LEGO-compatible "brick," based on a recently introduced 3-axis
digital "magnetometer on a chip."
Philip Keller, Marketing & Product Management, Metrolab
Technology SA

New Permanent Magnet Materials from the Critical
Materials Institute
This presentation will discuss several recent discoveries by the
US DOE-funded Critical Materials Institute including: the rareearth-free potential Alnico-beating "gap magnets" Fe5PB2 and
Fe5SiB2; the potential high-performance magnet LaCeCo16Ti;
and a less costly high performance magnet alloys based on the
Nd2Fe14B material.
Dr. David Parker, Staff Scientist, Oak Ridge National Laboratory

Big Magnets are a Big Problem No More
More and more applications enlist magnets and the according
magnet sensors for position, fixation or tracking purposes. For
optimal system functionality, both parts have to meet very specific standards. While the magnet sensors may be calibrated
all in the same manner, the characterization of the respective
magnets is more complex.
Matthias Schmidt, Research Associate, MATESY GmbH

www.MagneticsMag.com

Magnetic Materials Fabricated by Cold Spray
Additive Manufacturing
This presentation discusses the cost effective fabrication of soft
and hard magnetic materials using cold spray additive manufacturing. This technique allows for 3D build-up of complex
shapes permitting fabrication of high complexity motor designs
for enhanced performance. Combination of sprayed soft and
hard magnetic materials opens up synergetic design possibilities for additional performance gain and cost savings.
Jean-Michel Lamarre, Research Officers, National Research
Council of Canada

Expanded Temperature Capability for Permanent
Magnet Testing and a New Single Sheet Tester for
Electrical Steels
The testing of demagnetization curves of permanent magnets
at elevated temperatures in hysteresigraphs is fairly routine,
but testing below room temperature is not. A new system of
thermoelectrically cooled electromagnet pole tips for testing
magnets down to approximately -40°C is described along with
examples of measurements that have been made with the
equipment.
Reinhold M.W. Strnat, President, Magnet-Physics, Inc.

Additive Printing of Permanent Magnets
This presentation is focused on the additive manufacturing
techniques to print magnets with complex size and shape. Big
Area Additively Manufactured (BAAM) NdFeB bonded magnets
with performance comparable to, or better than, magnets of
the same composition made using traditional injection molding. We will review all the additive printing techniques that are
suitable for fabricating bonded magnets.
Dr. M. Parans Paranthaman, Corporate Fellow and Group Leader,
Oak Ridge National Laboratory

Permanent Magnets Material Options: Why $/kg and
(BH)max are Misleading Metrics
It has become accepted practice in the permanent magnet industry that $/kg and (BH)max are the primary metrics determining the optimum material choice for an application. However, there are many situations were both metrics are misleading
and may lead to a less than optimal material selection. These
shortcomings will be illustrated using case studies and alternative metrics will be discussed.
Dr. John Ormerod, Senior Technology Advisor, Magnet
Applications, Inc.

A Comparison of Permanent Magnet Axial Flux
Motors to Permanent Magnet Radial Flux Motors in
Commercial Drone Applications
Commercial applications for battery powered autonomous
vehicles used in air, land and sea environments will grow exponentially in the next few years. The drone application is the
most popular of these applications in the present time. These
applications need the low weight to allow a higher payload and
a very low resistance to allow longer flight times.
Lowell Christensen, Consultant Permanent Magnet Motor Design,
Lowell Christensen LLC

Winter 2017 * Magnetics Business & Technology

http://www.MagneticsMag.com

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