• AEROSPACE SHANGHAI
  • Vol. 41, Issue 3, 103 (2024)
Jinghong HUANG*, Rezhen ZOU, Hang CHEN, Shuai ZHU, Yan JIANG, Genlian FAN, Zhanqiu TAN, Zhiqiang LI, and Di ZHANG
Author Affiliations
  • State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China
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    DOI: 10.19328/j.cnki.2096-8655.2024.03.011 Cite this Article
    Jinghong HUANG, Rezhen ZOU, Hang CHEN, Shuai ZHU, Yan JIANG, Genlian FAN, Zhanqiu TAN, Zhiqiang LI, Di ZHANG. Mechanical Properties and Damping Capacity of CNT Reinforced Aluminum Maxtrix Composites[J]. AEROSPACE SHANGHAI, 2024, 41(3): 103 Copy Citation Text show less

    Abstract

    Carbon nanotube (CNT) reinforced aluminum matrix (CNT/Al) composites have the advantages of light weight,high strength,high modulus,and easy processing,and have a great application prospect in the aerospace field as lightweight materials.In order to obtain a lightweight structural material with both good mechanical properties and perfect damping capacity,the 1.5%(mass fraction) CNT/2A12 composite is prepared by flake powder metallurgy and elemental alloying.When the composite is aged at 130 ℃ for 6~14 h,it exhibits high tensile strength and good ductility.The tensile strength is up to 595 MPa at 12 h of aging,and the elongation is up to 14.0% at 8 h of aging.The damping capacity of the composite is about 0.005 at 0~180 ℃,but significantly increases at 180~300 ℃,reaching 0.05 at 300 ℃.The damping capacity is hardly affected by the aging time.The storage modulus of the composite decreases when the test temperature increases,and increases at 180~300 ℃ when the vibration frequency increases.Taking the overall properties into consideration,at 130 ℃ and 8 h,the 1.5%(mass fraction) CNT/2A12 composite has the optimal mechanical properties and damping capacity.
    Jinghong HUANG, Rezhen ZOU, Hang CHEN, Shuai ZHU, Yan JIANG, Genlian FAN, Zhanqiu TAN, Zhiqiang LI, Di ZHANG. Mechanical Properties and Damping Capacity of CNT Reinforced Aluminum Maxtrix Composites[J]. AEROSPACE SHANGHAI, 2024, 41(3): 103
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