ASTM C-28 Committee on Advanced Ceramics: Information Summary | Standards for Advanced Ceramics
Mat Web: Free materials information database with data on 22,154 materials, including metals, plastics, ceramics, and composites. Comprised mostly of data sheets and spec sheets supplied by manufacturers and distributors.
MEMS Material Properties Database: Includes mechanical properties, electrical properties, optical properties, and other values acquired through a literature search conducted by the MEMS Clearinghouse.
NASA Ames TPSX Materials Property: Database for advanced thermal protection material properties.
Inorganic Crystal Structure Database (ICSD): Maintained by Fachsinformationzentrum (FIZ) in Karlsruhe, Germany.