Presolicitation DEPT OF DEFENSE AFRL/RX Structural Materials Open BAA is seeking white papers and potentially technical and cost proposals to support the needs of its Structural Materials and Applications mission. The Air Force Research Laboratory is interested in technologies related to structural materials, including materials and scientific discovery, technology development, and transition. The solicitation provides descriptors of technology interests in the context of structural materials science and engineering academic "competencies" and Air Force application area needs.