Enhanced micro-vibration sensitive high-damping capacity and mechanical strength achieved in AI matrix composites reinforced with garnet-like lithium electrolyte  

作　　者：Xian-Ping WANG YiZHANG Yu XIA Wei-Bing JIANG Hui LIU Wang LIU Yun-Xia GAO Tao ZHANG Qian-Feng FANG 

机构地区：[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

出　　处：《Frontiers of Materials Science》2017年第1期75-81,共7页材料学前沿（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China （Grant Nos. 51401203, 11274309, 11274305, and 11374299）.

摘　　要：A novel micro-vibration sensitive-type high-damping AI 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/AI 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/AI 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.A novel micro-vibration sensitive-type high-damping AI 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/AI 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/AI 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.

关 键 词：high-damping materials micro-vibration sensitivity LLZNO/AI metalmatrix composites mechanical property 

分 类 号：TB33[一般工业技术—材料科学与工程] TB331