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

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• 作者：Xian-Ping Wang ; Yi Zhang ; Yu Xia ; Wei-Bing Jiang ; Hui Liu…
• 关键词：high ; damping materials ; micro ; vibration sensitivity ; LLZNO/Al metal matrix composites ; mechanical property
• 刊名：Frontiers of Materials Science
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：11
• 期：1
• 页码：75-81
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science, general;
• 出版者：Higher Education Press
• ISSN：2095-0268
• 卷排序：11

文摘

A novel micro-vibration sensitive-type high-damping Al matrix composites reinforced with Li_7-xLa₃Zr_2-xNb_xO₁₂ (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.