Innovative Nanocrystalline Magnetic Core Solutions for Cutting-Edge Technology

• Customization: Available
• Material: Cobalt-based Nanocrystalline Core
• Shape: Type C and Ring
• Model NO.: 1k107
• Certification: ISO9001
• Transport Package: Export of Packing
• Specification: 18x34x15
• Trademark: evergrowing
• Origin: Jiangsu, China
• HS Code: 8504901900
• Production Capacity: 500000 Pieces/Year

Product Description

Product Description

Nanocrystalline cores

Nanocrystalline cores are core components made of nanocrystalline soft magnetic alloy materials. With their unique microstructure and excellent magnetic properties, they have demonstrated significant application value in modern electronics, power and other fields. The following is a detailed description from aspects such as material properties, structural features, performance advantages, and application scenarios:

Material and Microstructure Characteristics:

1. Material composition: It is mainly composed of elements such as iron (Fe), silicon (Si), boron (B), nickel (Ni), and copper (Cu), with a typical composition of Fe73.5Cu1Nb3Si13.5B9 (there may be slight differences depending on different processes or models). Amorphous alloys are formed through rapid quenching (such as the single-roll rapid cooling method), and then undergo precisely controlled annealing treatment to precipitate nanocrystalline phases (α-Fe-Si crystals) with a particle size of 10-20 nanometers in the matrix, which are uniformly distributed in the amorphous matrix to form a "nanocrystalline-amorphous" composite structure.

2. Microstructure Advantages • Nanocrystalline phase: The fine crystal particles eliminate the grain boundary scattering of traditional coarse-grained materials, reduce the anisotropy of magnetic crystals, and make the rotation of magnetic domains easier. • Amorphous matrix: It retains the high magnetic permeability and low hysteresis loss characteristics of the amorphous structure, and the combination of the two forms the "super-soft magnetic" performance.

Core magnetic properties and physical characteristics:

1.Outstanding magnetic performance • High magnetic permeability: The initial magnetic permeability (μi) can reach the 10^5-10^6 level, far exceeding that of silicon steel (μi approximately 10^4) and common amorphous alloys (μi approximately 10^4-10^5), enabling more efficient magnetic permeability. • Low loss: Iron loss (such as at 10kHz and 0.5T) can be as low as below 0.1W/kg, which is only 1/10 to 1/5 of that of silicon steel, making it suitable for high-frequency scenarios. • Low coercive force: The coercive force (Hc) is usually less than 0.1A/m, with small domain reversal resistance, easier magnetization/demagnetization, and low energy loss. • High saturation magnetic induction intensity (Bs) : Bs is approximately 1.2-1.3T, close to silicon steel (1.5-1.7T), and superior to most amorphous alloys (0.8-1.0T), making it suitable for scenarios with high power density.
2. Physical Properties • Thin strip form: It is usually processed into thin strips with a thickness of 10-30μm to reduce eddy current losses and is suitable for high-frequency applications. • Hardness and toughness: The Vickers hardness (HV) is approximately 500-600, which is harder than silicon steel. Special molds are required for processing, but it still has a certain degree of ductility and can be wound into ring-shaped, C-shaped, EI-shaped and other cores. • Temperature stability: The Curie temperature (Tc) is approximately 500-550℃, with a wide operating temperature range (-50℃ to 130℃), a low temperature coefficient, and magnetic properties are less affected by temperature fluctuations.

Specification

Comparison with other core materials

Comparison with other 3 core materials

Material Type	nanocrystalline core	amorphous core	silicon steel core	ferrite core
Permeability	Extremely High(10^5-10^6)	High(10^4-10^5)	Middle (10^4)	Middle low(10^3-10^4)
Iron loss (10kHz)	<0.1W/kg	0.1-0.3W/kg	1-3W/kg	0.5-2W/kg(High-frequecy advantage)
Saturation flux density	1.2-1.3T	0.8-1.0T	1.5-1.7T	0.3-0.5T
Working Frequency	1kHz-1MHz	50Hz-200kHz	50Hz-20kHz	10kHz-10MHz
Cost	High(Production process complex)	Medium to high	middle	low
Typical Application	High-frequency power devices, precision transformers	Low-frequency transformers and reactors	Power frequency transformer, motor	Switching power supplies, radio frequency components