Thermomechanical Behavior of Bulk Ni/MWNT Composites Produced via Powder Metallurgy

被引：18

作者：

Suarez, Sebastian ^{[1
]}

Soldera, Flavio ^{[1
]}

Gonzalez Oliver, Carlos ^{[2
]}

Acevedo, Diego ^{[3
]}

Muecklich, Frank ^{[1
]}

机构：

[1] Univ Saarland, Dept Mat Sci, D-66123 Saarbrucken, Germany

[2] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

[3] Univ Nacl Rio Cuarto, Dept Quim, Rio Cuarto, Argentina

来源：

ADVANCED ENGINEERING MATERIALS | 2012年 / 14卷 / 07期

关键词：

CARBON NANOTUBES; THERMAL-EXPANSION; ALUMINUM; NICKEL;

D O I：

10.1002/adem.201200100

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermal expansion behavior of Ni matrix composites reinforced with multiwalled carbon nanotubes (MWNT) fabricated by pressureless sintering and hot uniaxial pressing was studied in the range between 50 and 1050 degrees C and compared to that of pure Ni. The results show an active interaction between the MWNT and the Ni matrix by reducing the coefficient of thermal expansion (CTE) of pure Ni up to 76% between 50 and 400 degrees C. This reduction is due to the strong interfacial interaction between the matrix and the reinforcement and the low intrinsic CTE of the nanotubes. This outstanding behavior may be very useful in applications were low CTE is required as for example structural materials.

引用

页码：499 / 502

页数：4

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