Within the materials community, there are several data repository efforts including the NIST Materials Data Repository (https://materialsdata.nist.gov), Automatic Flow for Materials Discovery (AFLOW) through the AFLOW Consortium (http://aflowlib.org), Citrine Informatics (http://www.citrine.io), Materials Project (https://www.materialsproject.org/), National Center for Supercomputing Applications (NCSA) Materials Data Facility as part of its National Data Facility (http://www.nationaldataservice.org/projects/mdf.html), and the University of Michigan Materials Common as part of its PRISM Center (Predictive Integrated Structural Materials Science: http://prisms.engin.umich.edu/#/prisms/materialscommons).
Bhat, T. N., Bartolo, L. M., Kattner, U. R., Campbell, C. E., & Elliott, J. T. (2015). Strategy for Extensible, Evolving Terminology for the Materials Genome Initiative Efforts. JOM, 67(8), 1866-1875.