Rapid multiple property determination from bulk materials libraries prepared from chemically synthesized powders

Area of Science:

• Materials Science
• Metallurgy
• Solid State Physics

Background:

• High-performance materials are critical for electrical, electronic, and mechanical systems, which consume substantial global energy.
• Next-generation systems demand novel material compositions with enhanced structural and functional properties.
• Accelerated methodologies are essential for efficiently evaluating multiple material properties.

Purpose of the Study:

• To synthesize and characterize a library of iron-cobalt-nickel ternary alloy compositions.
• To establish an accelerated methodology for determining multiple material properties.
• To identify specific alloy compositions with desirable property combinations for future applications.

Main Methods:

• Chemical synthesis of iron-cobalt-nickel ternary alloy powders.
• Spark plasma sintering to create compositionally graded bulk material libraries.
• Comprehensive characterization of crystal structure, magnetic, mechanical, and electrical properties.

Main Results:

• A range of ternary alloy compositions were successfully synthesized and processed.
• Specific compositions demonstrated optimized property sets: Fe50Co40Ni10 (magnetic and mechanical), Fe54Co17Ni29 (electrical resistivity), and Fe57Co29Ni14 (saturation magnetization and hardness).
• The developed methodology enables rapid screening of material properties.

Conclusions:

• Accelerated material property evaluation is feasible for ternary alloys.
• The study identified promising iron-cobalt-nickel compositions for diverse applications.
• This approach facilitates the discovery of new materials for next-generation systems.