Acoustic Emission and Damage Characteristics of Alumina |
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| Authors: | REN Hui-lan NING Jian-guo and HE Jian-hua |
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| Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Advanced multi-channels acoustic emission(AE)system is used to study the fracture process of alumina material subjected by three-point-bending loading.Using AE counts and AE hits,the location of damage and damage characteristics are discussed.AE energy,AE counts,AE amplitude changing with loading time are analyzed for the notched alumina specimen.It is indicated that AE characteristic parameters reflect the damage process and fracture of material. |
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| Keywords: | acoustic emission alumina three-point-bending damage characteristic |
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