Mechanoluminescence of nitride ceramics

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630275
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Yokohama National University
• Principal Investigator: TATAMI Junichi 横浜国立大学, 環境情報研究科(研究院), 教授 (30303085)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 窒化物セラミックス / メカノルミネッセンス / トライボルミネッセンス

Outline of Final Research Achievements

In this study, triboluminescence of Mn doped AlN ceramics and Eu doped CaAlSiN3 ceramics was investigated. The triboluminescence was measured using a tribometer with photomultiplier. As a result, luminescence intensity increased with an increase in the applied load. Triboluminescence increased with an increase in the wear volume. In Mn doped AlN ceramics, the cumulative triboluminescence intensity was proportional to the wear volume and luminescence occurred without wear. Furthermore, the triboluminescence increased with an decrease in the oxygen content in AlN grains.

Free Research Field

先進セラミックス