Assertion: cristobalite | /r/MadeOf | 30 vol% of titanium
Facets:
Source sentences:
text: Due to the percolation effect, partially-stabilized zirconia containing 25 vol% of titanium, or nickel, shows an insulator to conductor transition, and cristobalite containing 30 vol% of titanium shows a conductor to insulator transition as the temperature is raised.