NdFeB Magnets in the Context of Automotive Applications - ABM
NdFeB Magnets in the Context of Automotive Applications - ABM
NdFeB Magnets in the Context of Automotive Applications - ABM
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>NdFeB</strong> <strong>in</strong> <strong>the</strong> <strong>Automotive</strong> <strong>Context</strong><strong>NdFeB</strong> – Challenges and Open QuestionsIn contrast to stable hard ferrites, s<strong>in</strong>tered <strong>NdFeB</strong> materials oxidize <strong>in</strong> humid environments.This corrosion process leads to mechanical and magnetic degradation <strong>of</strong> <strong>the</strong> material.Left: Needles <strong>of</strong> magnetic corrosion products on <strong>the</strong> surface <strong>of</strong> a <strong>NdFeB</strong> magnet.Right: Cross section <strong>of</strong> a magnet with a layer <strong>of</strong> corrosion products.Long term stability (chemistry, <strong>the</strong>rmal stability)Long term availability and access (Nd, Dy, …)Overall environmental impactCost18CR/ARM3, Alexandra Wilde | 07/02/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regard<strong>in</strong>g any disposal, exploitation,reproduction, edit<strong>in</strong>g, distribution, as well as <strong>in</strong> <strong>the</strong> event <strong>of</strong> applications for <strong>in</strong>dustrial property rights.
Change language