Neodymium-Iron-Boron (NdFeB) permanent magnets are essential components in many mechanical, electric and electronic devices, providing large magnetic fields with no energy consumption. Nevertheless, their poor corrosion resistance is an important issue that makes them susceptible to degradation of the magnetic properties. In this paper, the authors propose the preparation of NdFeB – Poly-ether-ether-ketone (PEEK) composites, with the dual target of protecting the magnetic alloy, preventing it from corrosion, while realizing a new 3D printable material, to produce high performance magnets with customized and optimized design. PEEK – NdFeB filaments were produced with different filler amount (15, 34 and 41 vol%). 3D printed bonded magnets were successfully produced, resulting in magnetic remanence of 82, 218, and 226 mT respectively, as well as intrinsic coercivity of 627, 684 and 672 kA/m. The influence of the filler on the thermal and mechanical properties of the resulting composites were evaluated by means of several investigation techniques.

钕铁硼 (NdFeB) 永磁体是许多机械、电气和电子设备的重要组成部分，可提供大磁场且不消耗能量。然而，它们较差的耐腐蚀性是一个重要问题，使它们易于磁性能下降。在本文中，作者提出制备 NdFeB-聚醚醚酮 (PEEK) 复合材料，具有保护磁性合金、防止其腐蚀的双重目标，同时实现了一种新的 3D 可打印材料，以生产高具有定制和优化设计的高性能磁铁。PEEK – NdFeB 长丝使用不同的填料量（15、34 和 41 vol%）生产。3D打印粘结磁铁成功制作，剩磁分别为82、218、226mT，以及 627、684 和 672 kA/m 的内禀矫顽力。通过多种研究技术评估了填料对所得复合材料的热性能和机械性能的影响。