Ralf Riedel (born 11 February 1956) is a German professor of Materials Science at the Technical University of Darmstadt (TU Darmstadt) in Germany. He is known for his contributions to ceramics, polymer-derived ceramics (PDCs), and high-performance materials, which has advanced the understanding and application of ceramic materials in fields such as aerospace, automotive, and energy technologies.
Riedel studied chemistry at the University of Stuttgart with his Diploma Thesis concerning (Experiments on the reduction of aldehydes with white phosphorus). From 1984, he pursued a Ph.D. in the field of Inorganic Chemistry at the University of Stuttgart. In 1986, he graduated with his dissertation (White phosphorus as a starting material for the synthesis of organophosphorus compounds).
After education, Riedel undertook postdoctoral research at Max Planck- Institute for Metals Research, Institute for Materials Research, PML, Stuttgart in materials processing and characterization techniques. Between 1986 and 1992, he worked on his habilitation concerning (Non-oxide ceramics from inorganic precursors) under the supervision of Gerd Becker and Fritz Aldinger.
Riedel established and led the Dispersive Solids Group at the Institute of Materials Science, Technical University of Darmstadt (TU Darmstadt) as professor from 1993 until his retirement in 2022. His research in the Dispersive Solids Group focused on the development of polymer-derived ceramics, high-temperature materials, and functional ceramics for structural and electronic applications.
Ralf Riedel's career spans several decades with contributions to materials science, particularly in the development and application of polymer-derived ceramics (PDCs) as well as high pressure materials synthesis. His work bridges theoretical research and practical applications.
Riedel's early research focused on developing ceramic materials through synthesis routes, Highlights of Riedel's research at the Dispersive Solids Group are as follows:
Riedel is known for his work on PDCs. He has developed methods to design ceramics at the molecular level, enabling the production of materials with tailored properties. These advances have applications in high-performance coatings, lightweight structural materials, and energy storage technologies. His research into PDCs has been on extending their use to fields like aerospace engineering and microelectronics.
Riedel's work on ceramics designed for high-temperature environments has advanced the understanding of the thermal stability, creep resistance, and oxidation behavior of ceramics under extreme conditions.
In addition to PDCs, Riedel has contributed to the field of ceramic composites, where he has developed lightweight, high-strength materials by integrating ceramic matrices with other reinforcing materials. These composites are used in applications requiring exceptional mechanical properties, such as turbine blades and wear-resistant components.
In recent years, Riedel has focused on using sustainable materials and processes in ceramics manufacturing, contributing to the development of environmentally friendly materials for energy-efficient systems.
Throughout his career, Riedel has worked closely with industrial partners to ensure the translation of his research into practical applications. He has collaborated with companies in sectors such as aerospace, automotive and energy. He has served on the advisory board of the (IGB), an applied research institute.