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Enhanced micro-vibration sensitive high-damping capacity and mechanical strength achieved in Al matrix composites reinforced with garnet-like lithium electrolyte |
Xian-Ping WANG1(),Yi ZHANG1,2,Yu XIA1,Wei-Bing JIANG1,Hui LIU1,Wang LIU1,Yun-Xia GAO1,Tao ZHANG1,Qian-Feng FANG1 |
1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China 2. School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China |
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Abstract A novel micro-vibration sensitive-type high-damping Al matrix composites reinforced with Li7−xLa3Zr2−xNbxO12 (LLZNO, x = 0.25) was designed and prepared using an advanced spark plasma sintering (SPS) technique. The damping capacity and mechanical properties of LLZNO/Al composites (LLZNO content: 0–40 wt.%) were found to be greatly improved by the LLZNO addition. The maximum damping capacity and the ultimate tensile strength (UTS) of LLZNO/Al composite can be respectively up to 0.033 and 101.2 MPa in the case of 20 wt.% LLZNO addition. The enhancement of damping and mechanical properties of the composites was ascribed to the intrinsic high-damping capacity and strengthening effects of hard LLZNO particulate. This investigation provides a new insight to sensitively suppress micro-vibration of payloads in the aerospace environment.
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Keywords
high-damping materials
micro-vibration sensitivity
LLZNO/Al metal matrix composites
mechanical property
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Corresponding Author(s):
Xian-Ping WANG
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Online First Date: 14 December 2016
Issue Date: 22 January 2017
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