Kalatur S Narasimhan

Title: Innovations of Kalatur S. Narasimhan: A Pioneer in Rare-Earth Permanent Magnets

Introduction

Kalatur S. Narasimhan, a renowned inventor based in Monroeville, PA, holds five patents that highlight his significant contributions to the field of material science. His latest innovations focus on the production of rare-earth element-containing permanent magnets, which play a crucial role in various technological applications.

Latest Patents

Among his notable patents is a groundbreaking method for making rare-earth permanent magnets. This involves producing a molten mass of a rare-earth magnet alloy through induction melting, which is then introduced as a stream into a protective atmosphere chamber. This chamber contains a cooling medium, such as liquid argon, that facilitates the cooling and solidification of the alloy. After this process, the alloy is collected and comminuted into particles, which are then formed into a robust magnet body. Narasimhan's patent also describes an alternative process where the molten stream is atomized through a jet of inert gas, creating discrete droplets that are likewise directed towards the cooling medium.

Another key patent pertains to a permanent magnet of R.sub.2 Co.sub.17 type crystal structure, comprising a specific composition of rare earth elements, cobalt, copper, iron, and zirconium. By strategically substituting zirconium for a portion of copper, an optimal balance of coercive force and residual magnetization is achieved, enhancing the performance of the magnets produced.

Career Highlights

Kalatur S. Narasimhan has made significant strides in the field while working at Crucible Materials Corporation. His innovative approach to permanent magnets has positioned him as a leader in his domain, contributing to advancements that have far-reaching implications in various industries.

Collaborations

Throughout his career, Narasimhan has collaborated with esteemed colleagues, including Edward J. Dulis and George A. Strichman. These collaborations have fostered an environment of collective innovation and have contributed to the successful realization of numerous patent applications.

Conclusion

Kalatur S. Narasimhan's work in the development of rare-earth permanent magnets showcases his inventive spirit and dedication to advancing material science. With five patents to his name, his contributions continue to influence the industry, paving the way for future innovations in the field.