This inventor holds 2 USPTO granted patents. Top assignee: Centre National De La Recherche Scientifique. Active years: 1989-1990.
Company Filing History:
Years Active: 1989-1990
Title: Innovations of Jean C. Viala in Carbon Fiber Coating
Introduction
Jean C. Viala is a notable inventor based in Villeurbanne, France. He has made significant contributions to the field of materials science, particularly in the coating of carbon fibers. With a total of 2 patents, his work focuses on enhancing the properties of carbon filaments through innovative processes.
Latest Patents
Viala's latest patents include a groundbreaking process for coating carbon fibers with a carbide. This process involves continuously coating a strand of carbon filaments using a refractory carbide through a reactive technique. The method requires the strand to travel under mechanical tension within a hermetic enclosure. Simultaneously, a carbon-free gas mixture, consisting of hydrogen and a volatile compound capable of forming a refractory carbide, is introduced into the enclosure. The reaction mixture is then heated under controlled conditions, allowing a chemical reaction between the carbon in the filaments and the gas mixture to occur. This self-regulated reaction produces a thin, homogeneous passivation coating on each filament.
Another patent by Viala details a similar process for coating carbon fibers with a carbide through reactive CVD deposition. This method also involves the strand traveling under mechanical tension within a hermetic enclosure. A gas mixture of hydrogen and a volatile compound is introduced, and the reaction mixture is heated to facilitate the formation of the carbide deposit. The reaction is self-regulated by the diffusion of carbon through the already formed carbide layer.
Career Highlights
Jean C. Viala is affiliated with the Centre National de la Recherche Scientifique, where he conducts his research and development activities. His work has significantly advanced the understanding and application of carbon fiber technology.
Collaborations
Viala has collaborated with notable colleagues, including Jean Bouix and Jean L. Ponthenier, contributing to various research projects and innovations in the field.
Conclusion
Jean C. Viala's contributions to carbon fiber coating processes exemplify the innovative spirit of modern materials science. His patents reflect a commitment to advancing technology and improving material properties for various applications.