MECHANOLUMINESCENCE MATERIAL AND PROCESS FOR PRODUCING THE SAME

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A mechanoluminescence material comprising a matrix of composite metal oxide containing strontium and aluminum, represented by the general formula SrMAl6O11 (wherein M is an alkaline earth metal) or SrMAl3O7 (wherein M is a rare earth metal), and further comprising, as luminescence centers, a metal selected from among rare earth metals and transition metals capable of emitting light when a carrier having been excited by mechanical energy returns to its ground state.