Ti3Sn-NiTi Syntactic Foams with Extremely High Specific Strength and Damping Capacity Fabricated by Pressure Melt Infiltration

时间:2019-09-19作者:浏览量:404


Ti3Sn-NiTi Syntactic Foams with Extremely High Specific Strength and Damping Capacity Fabricated by Pressure Melt Infiltration

作者:Xie, CC (Xie, Changchun)[ 1 ] ; Li, H (Li, Hua)[ 1 ] ; Yuan, B (Yuan, Bin)[ 1,2 ] ; Gao, Y (Gao, Yan)[ 1,2 ] ; Luo, ZT (Luo, Zhengtang)[ 3 ] ; Zhu, M (Zhu, Min)[ 1,2 ]


ACS APPLIED MATERIALS & INTERFACES


卷: 11  期: 31  页: 28043-28051

DOI: 10.1021/acsami.9b08145


出版年: AUG 7 2019


文献类型:Article


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摘要

NiTi shape-memory alloy foams have attracted much attention due to their unique superelasticity, excellent mechanical properties, and damping capacities, but their high-temperature damping capacity and compressive strength remain to be a challenge. Herein, we demonstrate the preparation of Ti3Sn-NiTi syntactic foams using Ti58Ni34Sn8 alloy and alumina microspheres by novel pressure melt infiltration and air-cooling strategies. The syntactic foams with 45% porosity contain spherical and well-distributed pores of average size 500-600 mu m. A fine lamellar Ti3Sn/NiTi eutectic with an interspacing distance of 600-900 nm and a Ti2Ni interfacial layer of 10 mu m thickness were formed between the alumina microspheres and the matrix. The syntactic foams achieved a high specific compressive strength (110.2-110.8 MPa cm(3)/g) at a wide temperature range because of the large interfacial area and good lattice strain matching in the lamellar Ti3Sn/NiTi. They also exhibited 2% recoverable strain and high specific energy absorption capacity (31.5 kJ/kg). Moreover, the showed ultrahigh damping capacity (0.066) at a temperature range of -150 to 200 degrees C. Most interestingly, the Ti3Sn-NiTi syntactic foams showed the highest comprehensive coefficient, (sigma/rho).tan delta, of 5.07 to date. Because of these impressive features, Ti3Sn-NiTi syntactic foams become a promising material for energy absorption and damping applications.


关键词

作者关键词:Ti3Sn/NiTi; syntactic foam; strength; damping capacity; melt infiltration


KeyWords Plus:SHAPE-MEMORY ALLOYS; POROUS NITI ALLOY; COMPRESSIVE PROPERTIES; MECHANICAL-PROPERTIES; ENERGY-ABSORPTION; BEHAVIOR; COMPOSITE; MICROSTRUCTURE; METALLURGY; POROSITY


作者信息

通讯作者地址: Yuan, B (通讯作者)


显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China.

通讯作者地址: Yuan, B (通讯作者)

      Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 51640, Guangdong, Peoples R China.

通讯作者地址: Luo, ZT (通讯作者)

显示更多Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China.

地址:


显示更多[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

      [ 2 ] Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 51640, Guangdong, Peoples R China

显示更多[ 3 ] Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China

电子邮件地址:apsheng@scut.edu.cn; keztluo@ust.hk


基金资助致谢

基金资助机构授权号

National Natural Science Foundation of China

51571090 

Training Program of Major Basic Research Project of Provincial Natural Science Foundation of Guangdong

2017B030308001 

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出版商

AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA


期刊信息

Impact Factor (影响因子): Journal Citation Reports

类别 / 分类

研究方向:Science & Technology - Other Topics; Materials Science


Web of Science 类别:Nanoscience & Nanotechnology; Materials Science, Multidisciplinary