{"id":125425,"date":"2026-09-21T14:04:52","date_gmt":"2026-09-21T08:34:52","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=125425"},"modified":"2026-09-21T14:04:52","modified_gmt":"2026-09-21T08:34:52","slug":"neodymium-iron-boron-ndfeb-magnets","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/neodymium-iron-boron-ndfeb-magnets\/","title":{"rendered":"Neodymium-Iron-Boron (NdFeB) Magnets"},"content":{"rendered":"<h2><b>Neodymium-Iron-Boron (NdFeB) Magnets Latest News<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Neodymium-Iron-Boron (NdFeB) magnets have become the backbone of energy transition and advanced manufacturing.<\/span><\/p>\n<h2><b>About Neodymium-Iron-Boron (NdFeB) Magnets<\/b><\/h2>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">NdFeB magnets are a<\/span> <span style=\"font-weight: 400;\">type of <\/span><b>rare-earth permanent magne<\/b><span style=\"font-weight: 400;\">t composed of an <\/span><b>alloy of neodymium (Nd), iron (Fe), and boron (B).\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">First <\/span><b>developed <\/b><span style=\"font-weight: 400;\">in the early <\/span><b>1980s<\/b><span style=\"font-weight: 400;\">, they are the <\/span><b>strongest commercially available permanent magnets <\/b><span style=\"font-weight: 400;\">in the world, offering an extraordinary combination of <\/span><b>high magnetic energy density, coercivity,<\/b><span style=\"font-weight: 400;\"> and remanence in a<\/span><b> compact size.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The <\/span><b>chemical formula <\/b><span style=\"font-weight: 400;\">for the primary magnetic phase in an NdFeB magnet is <\/span><b>Nd\u2082Fe\u2081\u2084B <\/b><span style=\"font-weight: 400;\">\u2014 a <\/span><b>tetragonal crystalline structure <\/b><span style=\"font-weight: 400;\">that gives the material its exceptional magnetic properties.\u00a0\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><b>Typically, <\/b><span style=\"font-weight: 400;\">the composition includes <\/span><b>29-32.5% neodymium, 64-69% iron,<\/b><span style=\"font-weight: 400;\"> and <\/span><b>1.1-1.2% boron.\u00a0\u00a0\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Their<\/span><b> magnetic performance<\/b><span style=\"font-weight: 400;\"> can <\/span><b>deteriorate at high temperatures,<\/b><span style=\"font-weight: 400;\"> although specialized grades are designed for higher-temperature applications.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The <\/span><b>addition of heavy rare-earth elements <\/b><span style=\"font-weight: 400;\">like dysprosium (Dy) or terbium (Tb) is <\/span><b>common in high-temperature grades to maintain performance above 150\u00b0C.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">All the NdFeB magnets are <\/span><b>prone to corrosion<\/b><span style=\"font-weight: 400;\">. They will <\/span><b>require <\/b><span style=\"font-weight: 400;\">a form of <\/span><b>protective coating.<\/b><span style=\"font-weight: 400;\"> The<\/span><b> standard coating <\/b><span style=\"font-weight: 400;\">is a triple-layer <\/span><b>plating of nickel copper nickel (Ni-Cu-Ni).\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><b>Applications<\/b><span style=\"font-weight: 400;\">:<\/span>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">NdFeB magnets find widespread use in various industries, including <\/span><b>electronics, automotive, medical devices, renewable energy, <\/b><span style=\"font-weight: 400;\">and more.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In everyday products like headphones, electric motors, sensors, speakers, and generators, NdFeB magnets deliver enhanced performance, underlining their adaptability in modern technology.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><b>News: <\/b><a href=\"https:\/\/www.thehindu.com\/opinion\/op-ed\/missing-measure-in-indias-magnet-mission\/article71488862.ece#google_vignette\" target=\"_blank\" rel=\"nofollow noopener\"><b>TH<\/b><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Neodymium-Iron-Boron (NdFeB) Magnets are a type of rare-earth permanent magnet composed of an alloy of neodymium (Nd), iron (Fe), and boron (B). <\/p>\n","protected":false},"author":23,"featured_media":125478,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[10394],"class_list":["post-125425","post","type-post","status-publish","format-standard","has-post-thumbnail","category-upsc-prelims-current-affairs","tag-neodymium-iron-boron-ndfeb-magnets","no-featured-image-padding"],"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/125425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=125425"}],"version-history":[{"count":4,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/125425\/revisions"}],"predecessor-version":[{"id":125485,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/125425\/revisions\/125485"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/125478"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=125425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=125425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=125425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}