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Our technical experts are ready to answer your questions and address your magnetic needs. Whether it’s selecting a magnet to fit an application, choosing the most cost effective material or reviewing options from what is available in the market, we are here to help with:

  • Application and Design Engineering Assistance
  • Testing/Analysis of Magnetic Materials
  • Magnetic Circuit Analysis/FEA
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Demagnetization Curves

A second quadrant demagnetization curve provides information about the magnetic characteristics of a magnet, including the magnetic field strength and how resistant it is to demagnetize. How it is used in a magnetic circuit will affect its performance. When a permanent magnet is fully magnetized, its magnetic domains are aligned. Certain conditions such as temperature and reverse magnetic fields can cause some of the domains to lose this alignment and reverse, triggering the magnet to lose some or all of its magnetic field.  Click to view our demagnetization curves.

 

Magnet Stabilization and Calibration

If you need to ensure magnetic stability over temperature range, or tight tolerances on flux output, we have a great whitepaper covering this topic.   It is intended for manufacturers that use permanent magnets and need magnets or assemblies that are magnetically stable over the expected temperature range of use or those manufacturers requiring magnets to perform within a very tight tolerance of flux output.  Read more.

Resources

Adams 2016 Hard Magnet Materials Catalog
(7MB) Featuring a magnet materials overview, chart of materials properties and demagnetization curves for Neodymium, Samarium Cobalt, Ceramic (Ferrite) and Alnico materials offered by Adams.
Chart of Material Properties
Displays each permanent magnet material along with its Maximum Energy Product: Bhmax, Residual Flux Density: Br Gauss, Coercive Force: Hc Oersteds, Intrinsic Coercive Force: Hci Oersteds and Maximum Operating Temperature: C / F.
Breakaway Force of a Magnet
Explains the test methods used to determine how much force it takes to pull a magnet directly away from the surface it is attached to.
Samarium Cobalt Product Specifications
Samarium Cobalt (or SmCo) magnets are strong permanent magnets made of an alloy of samarium and cobalt. They are known for their high magnetic strength, exceptional temperature resistance, and reliable performance without oxidation protection. As a result, they are more suitable for certain applications than Neodymium magnets.
Adams TabMAG® Neodymium with Adhesive Product Specifications
Adams offers TabMAG® Neodymium discs and rectangles with adhesive on one side. They are commonly used in packaging, box closure, display, and door latch applications. This PDF gives an overview of our most popular TabMAG® magnets.
Standard Specifications for Permanent Magnet Materials
Defines thermal and mechanical characteristics and properties of commercially available permanent magnet materials including Alnico, Ceramic, Rare Earth (Samarium cobalt and neodymium) and Iron-Chromium-Cobalt. Includes a Glossary of Terms and Magnetic Quantities (Symbols, Units and Conversion Factors).