John N Periard

Title: The Innovations of John N. Periard

Introduction

John N. Periard is a notable inventor based in Bay City, MI (US). He has made significant contributions to the field of materials science, particularly in the development of magnesium aluminum spinels. His innovative work has led to the granting of a patent that showcases his expertise and creativity in this area.

Latest Patents

John N. Periard holds a patent for "Magnesium aluminum spinels." This patent outlines several methods for preparing polymetallic spinels by coprecipitating two or more metal compounds. The methods require coprecipitation of the metals in the hydroxide form or in a form convertible to the hydroxide-oxide form. The process involves calcining the coprecipitate and sintering the calcined material at about one-half its melting point or greater. This results in a spinel with a density greater than 50 percent of the theoretical density of the spinel crystal. Additionally, the patent discloses techniques for preparing spinels with more than two metals incorporated into the spinel lattice, as well as a separate oxide phase associated with the spinel crystallites.

Career Highlights

John N. Periard is associated with The Dow Chemical Company, where he has applied his knowledge and skills in materials science. His work has contributed to advancements in the production and application of spinel materials, which are essential in various industrial applications.

Collaborations

Throughout his career, John has collaborated with notable colleagues, including Walter W. Henslee and John S. Lindsey. These collaborations have further enriched his research and development efforts in the field of materials science.

Conclusion

John N. Periard's innovative work in the development of magnesium aluminum spinels exemplifies his commitment to advancing materials science. His contributions through patents and collaborations highlight the importance of innovation in this field.