Mark A Harper

Title: Mark A Harper - Innovator in Diffusion Coatings

Introduction

Mark A Harper is a notable inventor based in Columbus, OH (US). He has made significant contributions to the field of materials science, particularly in the development of diffusion coatings. His innovative work has led to advancements that enhance the performance and durability of steel in various applications.

Latest Patents

Mark A Harper holds a patent for the "Codeposition of chromium and silicon diffusion coatings in FE-base." This patent describes a method for producing diffusion coatings that incorporate approximately 18 to 35 wt % chromium and 1 to 3% silicon in 2.25Cr-1.0Mo steel and 1018 steel using a pack cementation method. The process requires a 'mixed activator,' which is a fused salt solution of NaF and NaCl. The coatings have demonstrated excellent cyclic oxidation resistance when tested in air at 700°C, showcasing their effectiveness in protecting steel from oxidation and corrosion.

Career Highlights

Mark A Harper is affiliated with The Ohio State University, where he continues to engage in research and development in materials science. His work has not only contributed to academic knowledge but has also practical implications in various industries that utilize steel components.

Collaborations

One of his notable collaborators is Robert A Rapp, with whom he has worked on various projects related to diffusion coatings and materials engineering.

Conclusion

Mark A Harper's innovative contributions to the field of diffusion coatings have paved the way for improved material performance in steel applications. His patent reflects a significant advancement in the protection of steel against oxidation and corrosion, highlighting his role as a key inventor in this area.