Why 1J85 Alloy Powder Is Ideal for High-Precision Magnetic Applications

Published by HUAXIAO TECH manufacturer

Magnetic shielding and precision inductive components demand materials with stable permeability and low core loss. 1J85 alloy powder, a high-nickel soft magnetic alloy, meets these requirements with exceptional consistency, making it a top choice in electronics, aerospace, and medical devices.

Optimized Magnetic Performance

1J85 alloy powder contains approximately 80% nickel and 4.5% molybdenum, offering:

• High initial and maximum permeability

• Low coercivity and core loss

• Excellent magnetic stability over a wide temperature range

Its magnetic softness makes it particularly valuable in environments where signal integrity and magnetic shielding are critical.

Stable Processing for Advanced Manufacturing

The powder form of 1J85 offers significant processing advantages:

• Spherical particles with excellent flowability

• High tap density and uniform packing

• Superior compatibility with metal injection molding (MIM), additive manufacturing (AM), and pressing/sintering

These features allow consistent production of complex magnetic parts with tight tolerances.

Key Applications Across Industries

1J85 alloy powder is widely used in:

• Magnetic shielding cases for avionics and sensors

• Precision transformers and inductors

• Magnetic cores in pulse transformers and relays

• MRI-compatible electronic components

• Medical instrument shielding structures

Its reliability and low magnetic noise make it particularly suitable for aerospace navigation and sensitive measuring devices.

Benefits Summary

• High permeability and low coercivity

• Excellent frequency response

• Thermal stability across operating ranges

• Efficient in miniaturized or complex parts via AM and MIM

Frequently Asked Questions (FAQ)

Q1: What is the recommended particle size for MIM or AM?
A1: Typical size range is 5–25 μm for MIM, and 15–53 μm for AM applications.

Q2: How does 1J85 compare to 1J79 or 1J50?
A2: 1J85 provides higher permeability and better thermal stability, making it more suitable for high-precision magnetic shielding.

Q3: Does the alloy require any post-treatment?
A3: Annealing in a hydrogen atmosphere is recommended to optimize magnetic properties.

Conclusion

1J85 alloy powder delivers precision, magnetic efficiency, and process adaptability. Whether in high-frequency transformers or critical aerospace shielding, it ensures reliable performance where magnetic precision matters most.

For tailored magnetic powder solutions, contact HUAXIAO TECH and explore our full range of soft magnetic materials.