W Thomas Evans

Title: W Thomas Evans: Innovator in Composite Materials

Introduction

W Thomas Evans is a notable inventor based in Indiana, PA, who has made significant contributions to the field of composite materials. With a total of three patents to his name, Evans has focused on developing innovative solutions that enhance material properties and performance.

Latest Patents

One of Evans' latest patents is for an aluminum phosphate bonded fiber reinforced composite material. This invention outlines a method of forming a fiber reinforced aluminum phosphate bonded material that exhibits improved strength at elevated temperatures. The process involves preparing a slurry by blending alumina and aluminum phosphate solution, ensuring the slurry is substantially free of silica. Additionally, it includes providing a fiber substrate coated with various metals, infiltrating the slurry into the substrate, and curing it to create the composite material. In a preferred embodiment, the fiber substrate is made from SiC fibers, and the refractory metal is electrolessly coated nickel.

Another significant patent by Evans is for an electrolytic capacitor and the method of making it. This invention describes an improved valve metal electrolytic capacitor, such as an aluminum electrolytic capacitor. The improvement lies in forming a hydration resistant composite layer on the valve metal, which includes a valve metal oxide dielectric layer. This is achieved by anodizing the valve metal in an aqueous phosphorus-containing organic electrolyte, resulting in an electrolytic capacitor with increased resistance to hydration.

Career Highlights

Evans has been associated with the Aluminum Company of America, where he has applied his expertise in materials science to develop innovative products. His work has contributed to advancements in the field of composite materials, particularly in applications requiring high strength and durability.

Collaborations

Throughout his career, Evans has collaborated with notable colleagues, including Daniel J Boland and William P Kampert. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the industry.

Conclusion

W Thomas Evans is a distinguished inventor whose work in composite materials has paved the way for advancements in various applications. His innovative patents reflect a commitment to enhancing material performance and addressing industry challenges.