Stress-stimulated luminescent material, paint containing the same-stressed luminescent material, stress-stimulated luminescent material, and method for producing stress-stimulated luminescent material

摘要

Provided is a stress-stimulated luminescent material that can exhibit high-luminance luminescence compared to conventional SAO-based stress-stimulated luminescent materials even for small strains and has a relatively high stress-stimulated luminescence ability even when left for a long time after excitation. A strontium aluminate-based stress luminescent material containing Zr ions was used. The Zr ion is contained in a reduced state, the Zr ion content is 10 mol% or less, and one or more emission peaks are observed at a temperature of 100 ° C. or higher in thermoluminescence measurement. Also has features.