23 Chemistry and Materials (General)
Includes general research topics related to the composition, properties, structure, and use of chemical compounds and materials as they relate to aircraft, launch vehicles, and spacecraft. For specific topics in chemistry and materials see categories 24 through 29. For astrochemistry see category 90 Astrophysics.
Chemistry – The science that studies the composition, structure, properties, interactions, and transformations of elemental matter and compounds. NASA Thesaurus, Washington, DC: National Aeronautics and Space Administration.
Materials – In general, the substances of which aircraft, launch vehicles, and space vehicles are composed; specifically, the metals, alloys, ceramics, and plastics used in structural, protective, and electronic functions. Adapted from the Dictionary of Technical Terms for Aerospace Use. Wm. H. Allen, ed., 1965. NASA SP-7.
Exhaustive Interest : Properties, composition, structure, synthesis, and manufacture of compounds and materials used for aircraft, launch and space vehicles, launch site equipment, space structures, and other aerospace applications.
Selective Interest : Studies of chemistry or materials having no aerospace applications.
Input Subjects of Specific Interest