Magnetics Business & Technology - Winter 2017 - 22

MAGNETICS 2018 CONFERENCE PREVIEW

Conference Program
Keynote Panel: The Future of the Magnetics Industry -
Pricing, Trends, Technology
How high will the price of Rare Earth materials climb? Is there
sufficient magnet supply to fuel the demand from electric vehicles? Attend the Keynote panel at MAGNETICS 2018 as industry
leaders will discuss the future of the magnetics industry.
Moderated by Scott Tubbs, Vice President of Sales & Marketing,
Quadrant Magnetics
James Bell, Principal Consultant, MagnetoDynamics
Stan Trout, President, Spontaneous Materials
Walter Benecki, President, Walter T. Benecki LLC
Scott Struven, Sr. Mgr. Sales and Engineering, Hitachi Metals

International Rare Earth Standards
The International Organization for Standardization (ISO) recently established a Technical Committee tasked with writing
standards within the field of rare earth elements. To ensure
that US market needs and perspectives are adequately represented, an advisory group of US-based rare earth stakeholders,
from a variety of sectors, have engaged in the process of helping write these new standards. The presentation will expand on
this effort, as well as the opportunities that exist for additional
stakeholder engagement.
Brian Zupancic, Senior Project Manager, CSA Group

Comparison of Open-Loop and Closed-Loop Hysteresis Measurement Systems for Permanent Magnets
It is established that measuring the BH curve of permanent magnets with open-loop and closed-loop measurement system yields
the same results for the key parameters of a hysteresis trace: Br;
HcB, HcJ and BHmax. Beyond these four key parameters, there
exists small differences between the two measurement systems.
This presentation will focus on these differences from the theoretical point as well as highlight some practical cases.
Dr. Luc Van Bockstal, Technical Director, Metis Instruments n.v

Wide Temperature Range Hall Effect Sensors with
Minimal Planar Hall Effect
Recent development efforts have resulted in a new sensor technology for accurately measuring magnetic fields. These sensors
rely on the Hall effect in a 2DEG structure, resulting in advantages such as an enormous operating temperature range, a massive
reduction in planar Hall effect and excellent sensitivity. These
sensors open up new measurement opportunities that may previously have been out of reach, such as high-stress cryogenic environments or high temperature industrial applications.
Daniel Hoy, Application Engineer, Lake Shore Cryotronics

AC Magnetic Field Measurements with the Senis
Magnetic Field Mappers
The Senis Magnetic Field Mappers were initially developed for
high position resolution mapping of the three field components
Bx, By, Bz in a 3D volume around a permanent magnet assembly. The Mapper hardware, signal processing and display software can also be applied for ac field measurement. Maps of the
AC magnetic field in and around a power supply can show the
fringe magnetic field from the transformer and inductor magnetic components as a function of position.
Dr. Zhen Xu, Development Engineer, GMW

Magnetics Business & Technology * Winter 2017

Site Specific Magnetic Anisotropy in Rare Earth and
Transition Metal Based Permanent Magnetic Materials
The very first criteria for the permanent magnetic material
design is crystal structure which allows magnetic moments to
align along the anisotropic crystal axis. The involved crystal
sites play a key role in determining the magnetic moments and
uniaxial magnetic anisotropy. Here we present how advanced
density functional calculations incorporating electron correlation and spin orbit coupling are capable to predict and optimize
magnetic anisotropy contributed by the rare-earth sites due to
the crystal-field split and spin-orbit coupled 4f-states.
Durga Paudyal, Ph.D., Associate Scientist, Ames Laboratory

Injection Molded Magnets: Methods to Improve Their
Accuracy for Positional Sensor Applications
The positional accuracy of magnetic sensor systems with injection molded magnets depends on different parameters. In this
presentation the different sorts of injection molded magnets for
the most common magnetic position sensors will be explained as
well as the basic physical principles of their interaction.
Thomas Schliesch, Head of R&D, Baermann GmbH

Evaluating Magnetic Materials on Brushless PM
Motor Performance
A potential challenge for simulating motor designs is the impact of stator lamination materials on motor performance.
There are a number of variables in selecting magnetic materials for use in a brushless PM motor design. A Motor-CAD BPMEMag module simulation program will be used to illustrate the
performance impact of these various materials on overall motor performance.
Dan Jones, President, Incremotion Associates

Cooling Technology Based on Magnetic Materials:
What Does the Future Hold?
Caloric (solid) materials are referred to as those whose temperatures alter in responses to applied external fields. Representative examples include magnetocaloric, electrocaloric,
and mechanocaloric (elastocaloric or barocaloric) materials.
Refrigeration using these materials may yield significant advantages over conventional gas compression techniques. Current
research is focused on the development of materials with desirable caloric properties for energy-efficient refrigeration.

Manh-Huong Phan, Associate Professor, Department of Physics,
University of South Florida

Nanostructured Rare Earth Ferrites Fabricated by
Solution Combustion Synthesis
Rare earth ferrites exhibit a high electrical resistivity as well
as an excessive value of magnetic permeability and low power
losses that describes a growing interest for electronic applications at higher frequencies. In this report, the development
of nanostructured particles of rare earth ferrites by Solution
Combustion Synthesis is described. The method uses exothermic reaction to produce a thermal front that moves through
the sample converting components to the desired rare earth
ferrite nanoparticles.
Dr. Karen Martirosyan, Professor in Physics, University of Texas Rio
Grande Valley

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Table of Contents for the Digital Edition of Magnetics Business & Technology - Winter 2017