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欧美联手掀起去稀土风暴,中国掌握九成精炼能力,为何欧美仍敢叫板掀起稀土替代潮?
Sou Hu Cai Jing· 2025-10-01 14:50
Group 1 - The core viewpoint of the articles revolves around the geopolitical struggle for rare earth materials, particularly focusing on the efforts of Western countries to reduce their dependence on China for rare earth elements and magnets [1][3][4]. - Germany's VAC claims to have developed a magnet that does not rely on heavy rare earths, which is seen as a significant breakthrough in material science, but it is primarily a strategic move to lessen reliance on Chinese supplies [1][3]. - The European Union has established a Critical Raw Materials Alliance and classified rare earths as high-risk materials, indicating a coordinated effort among European nations to address their rare earth resource shortages [3][4]. Group 2 - The U.S. has been actively supporting domestic companies to reduce reliance on Chinese permanent magnets, with companies like NironMagnetics developing rare-earth-free alternatives, albeit with slightly lower performance [4]. - Japan's Toyota and Sumitomo Metal aim to reduce their use of heavy rare earths like dysprosium by 70%, while Australia and Canada still depend on China for refining processes despite having rare earth deposits [6]. - China has made significant advancements in heavy rare earth recycling technologies, achieving over 70% recovery rates, while also exploring new materials like high-entropy alloys [6]. Group 3 - The ongoing competition in the rare earth sector is characterized by a lack of clear technological breakthroughs, with countries pushing for a reshuffling of the industry driven by government intentions rather than pure technological advancements [6]. - The upcoming 2025 Shanghai Magnetic Materials Exhibition will be a critical event for Chinese companies to respond to the evolving landscape of the rare earth market, with the balance of power still uncertain [6].
美国宣称氮化铁“摆脱中国稀土”!网友:这玩意在中国是做冰箱贴的
Sou Hu Cai Jing· 2025-09-27 01:47
Core Insights - Rare earth elements are crucial for modern technology, including smartphones, air conditioners, and electric vehicles, due to their unique electronic structures and stability under extreme conditions [2][4] - The U.S. is seeking alternatives to Chinese rare earth supplies, with recent claims about iron nitride as a potential substitute, although its performance is significantly inferior to rare earth materials [6][9] Industry Overview - The importance of rare earth elements in high-tech products like neodymium-iron-boron magnets and catalysts highlights their role as essential components in modern industry [4] - The U.S. heavily relies on China for rare earth imports, with over 80% of its supply coming from China and a staggering 97% for heavy rare earths, indicating a critical dependency [8] Technological Challenges - Iron nitride, while marketed as a breakthrough, is primarily used in low-performance applications and cannot meet the stringent requirements of high-tech industries [6][9] - Previous U.S. attempts to find substitutes for rare earth elements have failed due to high costs and inadequate performance, suggesting that the current push for iron nitride is more of a psychological reassurance than a viable solution [9]