Densification and Some Properties of Carbon Nanotubes-Dispersed Al 2 O 3 Nanocomposite Powders

2005

In-situ processing route was adopted to disperse carbon nanotubes (CNTs) into powders homogeneously. The composite powders with homogeneous dispersion of CNTs could be synthesized by a catalytic route for in-situ formation of CNTs on nano-sized Fe dispersed powders. CNTs/Fe/ nanopowders were densified by spark plasma sintering (SPS). The hardness and bending strength as well as electrical conductivity increased with increasing sintering temperature. However, the electrical conductivity of the composites sintered at above showed decreased value with increasing sintering temperature due to the oxidation of CNTs.焈돀こΗ⨀塨?⨀硽Η⨀䤈돐顽Η⨀�잖⨀ꁽΗ⨀℈덐끽Η⨀ 萁尅䥓䑂䄐䥓〲ㅟ䅕䥎彋佔䥔㢈Ǿ8āⲄǾ,Չ卄䉁੉匰㈱彁啉丈≋佟呉吢ࡖ䅒䍈䅒㋿ƀƀ

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