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About

Norman J. Johnston is a materials scientist and aerospace engineer whose career centered on advancing composite materials fabrication technologies at NASA Langley Research Center (LaRC). His research focused on automated fiber and tow placement, high-performance polymer matrix composites, and cost-effective manufacturing processes for aerospace structures. Johnston made significant contributions to the development of automated fabrication methods for both thermosetting and thermoplastic composites, including pioneering work on LARC™-PETI-5, a phenylethynyl-terminated polyimide resin developed at NASA LaRC that offered exceptional thermal stability and superior mechanical properties for demanding aerospace applications. His investigations into film interleaf techniques for PEEK/IM7 composites demonstrated meaningful improvements in fatigue resistance and impact performance, while his work on hybrid infrared-hot gas heating systems helped refine the precision and efficiency of tow placement hardware. As a researcher at one of the world's foremost aerospace research institutions, Johnston contributed to foundational overviews of composite structures research that helped shape the direction of low-cost robotic fabrication and liquid molding processes. His published work, accumulating citations across the composites manufacturing community, reflects a career dedicated to bridging advanced materials chemistry with practical, scalable aerospace manufacturing solutions.