Engineering topics

Lograsso, Thomas

Publications and source records attributed to Lograsso, Thomas.

3 records

DOE OSTI2024

Critical Materials Institute (CMI) Year 10 Cumulative Report

This 40-page technical report summarizes the achievements and success of the first 10 years of the Critical Materials Institute (CMI). CMI is an Energy Innovation Hub created by the U.S. Department of Energy (DOE) that focuses on developing the technical innovations needed to address the supply chain of critical materials important to clean energy technologies. The report describe the CMI’s unique implementation of the Energy Innovation Hub model including sections on situational analysis and approach; critical materials challenges and technical achievements; and diverse impacts of the first 10 years of operations.

36 MATERIALS SCIENCE↗

DOE OSTI2022

Manufacturing Processes for Permanent Magnets: Part II—Bonding and Emerging Methods

Abstract Permanent magnets produce magnetic fields and maintain the field even in the presence of an opposing magnetic field. They are widely used in electric machines, electronics, and medical devices. Part I reviews the conventional manufacturing processes for commercial magnets, including Nd-Fe-B, Sm-Co, alnico, and ferrite in cast and sintered forms. In Part II, bonding, emerging advanced manufacturing processes, as well as magnet recycling methods are briefly reviewed for their current status, challenges, and future directions.

Cui, Jun (ORCID:0000000179118172)↗

DOE OSTI2022

Manufacturing Processes for Permanent Magnets: Part I—Sintering and Casting

Abstract Permanent magnets (PMs) produce magnetic fields and maintain the field even in the presence of an opposing magnetic field. Electrical machines using permanent magnets are more efficient than those without. Currently, all known strong magnets contain rare earth (RE) elements, and they are core components of a wide range of applications including electric vehicles and wind turbines. RE elements such as Nd and Dy have become critical materials due to the growing demand and constrained supply. Improving the manufacturing process is effective in mitigating the RE criticality issue by reducing waste and improving parts consistency. In this article, the state of the industry for PM is reviewed in detail considering both the technical and economic drivers. The importance of RE elements is discussed along with their economic importance to green energy. The conventional sintering and casting manufacturing processes for commercial magnets, including Nd-Fe-B, Sm-Co, Alnico, and ferrite, are described in detail.

36 MATERIALS SCIENCE↗