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Novel Nano-Laminated Fe Soft Magnetic Materials with High Flux Density

Award Information

Department of Defense
Award ID:
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
CM-Tec, Inc.
1 Innovation Way Suite 100 Newark, DE 19711
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2004
Title: Novel Nano-Laminated Fe Soft Magnetic Materials with High Flux Density
Agency / Branch: DOD / NAVY
Contract: N00024-04-C-4198
Award Amount: $69,854.00


We propose to develop a novel nano-laminated Fe magnetic core material. With our proprietary technique, we have developed a process to create Fe sheets of hundred nanometers thick. By coating these Fe sheets with a thin insulating layer and subsequent consolidation, we can achieve nano-laminated soft magnetic Fe cores, which is a nano-scale version of the conventional laminated silicon steel cores. This innovation makes it possible to form and preserve the nanometer sheet structures during the process. The process greatly simplifies the manufacture procedures and reduces the cost. The net-shape capability further reduces the cost. The materials have low weight and are anticipated to have good mechanical properties. More importantly, it is likely to achieve high magnetic flux density over a wide frequency from dc to MHz range, surpassing any current commercial materials. The proposal objective is the feasibility demonstration of fabricating nano-laminated Fe cores with high flux density close to 1.9T, low weight, low cost, and good mechanical properties. Specifically, we will (1) determine the experimental conditions to form nano-laminates; (2) optimize the structure to achieve good magnetic properties; and (3) achieve dense compacted samples with magnetic and mechanical properties similar to those of M-19 silicon steel.

Principal Investigator:

XiaoChun Lu
Sr. Scientist

Business Contact:

Robert A. Wolffe
Chief Operating Officer
Small Business Information at Submission:

Delaware Technology Park, 1 Innovation Way, Suite Newark, DE 19711

EIN/Tax ID: 010656402
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No