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Nanocrystalline Cores & Ribbons: The Nanotechnology Revolution in Soft Magnetic Materials, Empowering New Energy and Digital Economy
Created on 04.16
Nanocrystalline Cores & Ribbons: The "Nanotechnology Revolution" in Soft Magnetic Materials, Empowering New Energy and Digital Economy
Amid the rapid development of new energy vehicles (NEVs), photovoltaic energy storage, 5G communications, and data centers, nanocrystalline cores and ribbons have emerged as core materials supporting the efficiency, miniaturization, and greenization of power electronic systems, reshaping the global magnetic components industry chain with their superior electromagnetic performance.
I. What are Nanocrystalline Cores & Ribbons?
Nanocrystalline materials are a new type of soft magnetic alloy, primarily composed of iron-based (Fe-Si-B-Cu-Nb) components. They are manufactured via ultra-rapid solidification (cooling rate up to 10⁶℃/s) to form amorphous thin ribbons, which then undergo controlled annealing to precipitate ultra-fine grains (10–20nm in size), resulting in a dual-phase microstructure of "nanocrystals + residual amorphous phase".
Core Performance Advantages (compared to traditional silicon steel and ferrite):
• High magnetic permeability (initial permeability > 8×10⁴)
• Ultra-low core loss (W/kg at 100kHz, 0.1T)
• High saturation magnetic flux density (1.25T)
• Broad frequency stability (operating frequency range: kHz–MHz)
• Excellent temperature stability (working temperature: -50℃~180℃)
II. Technological Breakthroughs: Thinner, Higher-Frequency, and Smarter
In 2026, nanocrystalline technology continues to evolve, with three key trends leading industry upgrading:
1. Thinner Ribbons: Laboratories have developed the 4th-generation nanocrystalline ribbons with a thickness of 0.015mm (15μm), reducing core loss by 50% compared to conventional products, with commercialization expected by 2030.
2. Higher Frequency Adaptability: Optimized composition design enables operating frequencies exceeding 1MHz, meeting the needs of cutting-edge scenarios such as quantum computing and 6G communications.
3. Intelligence: Integration of temperature and stress sensors enables real-time monitoring and adaptive adjustment of core status.
III. Application Boom: New Energy, Power Grid, Communications, and Data Centers
1. New Energy Vehicles (NEVs)
• Core components for On-Board Chargers (OBC), motor controllers, and DC-DC converters: 30%+ smaller volume and 5%+ higher efficiency.
• NEV manufacturers such as Tesla and BYD adopt nanocrystalline cores, reducing motor iron loss by 65%.
2. Photovoltaic (PV) Energy Storage
• Inverters, transformers, and filter inductors: efficiency improved to 99% and footprint reduced by 60%.
• Nanocrystalline three-phase transformers deployed in Xinjiang PV projects have boosted system efficiency to 99%.
3. Smart Grid & Rail Transit
• Current transformers and electronic sensors: Compliant with the EU’s New Battery Regulation, enabling μA-level high-precision detection.
• Nanocrystalline traction transformers used in Shenzhen Metro Line 16: 7.2% lower energy consumption and 12dB reduced noise.
4. 5G/6G Communications & Data Centers
• Base station power supplies, RF inductors, and AI server power modules: 40% lower energy consumption and 50% smaller volume.
• Solid-State Transformers (SST): Nanocrystalline materials enable 98% efficiency and 90% smaller size, supporting 800V high-voltage DC and AI computing power upgrades.
IV. Industry Landscape: China’s Rise and Global Competition
Market Size
• China’s amorphous and nanocrystalline market reached RMB 3.198 billion in 2025, a year-on-year increase of 11%. This data is synthesized from industry surveys by the Amorphous Alloy Materials Application Branch of China Electrical Equipment Industry Association and the "2026-2031 China Amorphous and Nanocrystalline Industry Market Analysis Report". The growth is directly driven by a 20% annual increase in domestic amorphous powder output and the booming downstream new energy demand.
• The global nanocrystalline core market was valued at USD 508 million in 2024, with the Asia-Pacific region accounting for 55% (consistent with the 53.95% share of the global soft magnetic materials market in the region). It is projected to exceed USD 1.2 billion by 2030, with a CAGR of 12.9%. This forecast is based on demand growth modeling by Guanyan Report Network for new energy and communications sectors, aligning with the global nanocrystalline soft magnetic materials market growth from USD 5 billion in 2019 to USD 8 billion in 2025.
Competitive Landscape
• International Leaders: Japan’s Hitachi Metals (Finemet), Germany’s VAC, and the US-based Honeywell dominate the high-end market.
• Chinese Players: Ansteel Advanced Materials, Yunlu Co., Ltd., Tangshan Xianlong Nano, and Jinxin Magnetic Materials are rapidly emerging, with continuous improvement in localization rate. More than 15 domestic enterprises have laid out new amorphous and nanocrystalline projects, and some products have reached or are close to international advanced levels.
V. Policy Support: Key Strategic New Material in the 15th Five-Year Plan
• National Strategy: The 15th Five-Year Plan (2026–2030) explicitly classifies amorphous/nanocrystalline materials as key strategic new materials, targeting a localization rate of 90%.
• Dual Carbon Drive: Nanocrystalline materials have only 1/3 of the iron loss of traditional silicon steel, aligning with the high-efficiency and low-consumption needs of the new power system.
• Power Grid Upgrade: State Grid’s 15th Five-Year distribution network upgrade plan aims for a 40%+ penetration rate of amorphous alloy transformers.
VI. Future Trends: From Materials to Systems, Green and Intelligent
1. Extreme Performance: 8nm grain size control, mass production of 8μm ultra-thin ribbons, and atomic-level magnetic domain regulation.
2. Scenario-Specific Customization: Nanocrystalline cores for 6G terahertz frequency bands (loss ≤ 0.8W/kg) and AI servers with high-temperature resistance (125℃).
3. Green Manufacturing: Hydrogen annealing reduces carbon emissions by 45%, recycled metal utilization rate reaches 30%, and full-lifecycle carbon emissions decrease by 52%.
4. Industrial Transformation: Transition from material suppliers to magnetic component solution providers.
Conclusion
With the transformative power of "one generation of materials, one generation of equipment", nanocrystalline cores and ribbons have become key enablers of new energy, digital economy, and dual carbon goals. Driven by technological breakthroughs, domestic substitution, and market expansion, China is evolving from a "follower" to a "leader", propelling the global soft magnetic materials industry into the "nanotechnology era".
Data Sources
1. Amorphous Alloy Materials Application Branch of China Electrical Equipment Industry Association. (2024). Industry Survey on Amorphous Powder Market. China Metallurgical News.
2. China Report Hall. (2023). 2023 Nanocrystalline Soft Magnetic Materials Industry Competition Analysis.
3. Guanyan Report Network. (2024). Soft Magnetic Materials Industry: Asia-Pacific Market Accounts for the Highest Share.
4. China Report Hall. (2026). 2026-2031 China Amorphous and Nanocrystalline Industry Market Analysis and Development Prospect Forecast Report.
5. Guanyan Report Network. (2025). Global Nanocrystalline Core Industry Development Depth Analysis Report.
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