简要介绍资料的主要内容,以获得更多的关注

23

1

Vol.23No.1February2009

2009

2

CHINESEJOURNALOFMATERIALSRESEARCH

/

(

430070)

,

,

.

1%(

)

50%.

,

.

,

,

/

,

,

TB332

1005-3093(2009)01-0059-05

CNTsreinfocedaluminaceramicspreparedbyhotpressingtechnologywithultra-fastheatingratebasedoncombustion

reaction

HUANGLiwei

FUZhengyi

MENGFancheng

(StateKeyLaboratoryofAdvancedTechnologyforMaterialsSynthesisandProcessing,

WuhanUniversityofTechnology,Wuhan430070)

*SupportedbyNationalNaturalScienceFoundationofChinaNo.50772081andProjectFundofMinistryofEducationNo.PCSIRT0644.ManuscriptreceivedJune11,2008;inrevisedformNovember1,2008.**Towhomcorrespondenceshouldbeaddressed:Tel:(027)87867824,E–mail:huangllww@163.com

ABSTRACTAnovelmethodforproducingcarbonnanotubes(CNTs)reinforcedaluminaceramicswasreported.Thereactionheatgeneratedbycombustionwasutilizedasahightemperaturesource,andgreatmechanicalpressurewasappliedwhenthecombustionreactionwas nished.Whenadding1%CNTs,thefracturetoughnessofthecompositesincreasedabout50%comparedwiththepurealuminaceramicspreparedinthesameconditions.Theresultsindicatethatthesinteringmethodisbene cialtoprotectingtheCNTsfromdestruction.ThetougheningmechanismsaremainlyCNTspulled-outandCNTsbridging.KEYWORDScomposites,carbonnanotubes,self-propagatingcombustion/quickpressing,tougheningmechanism,mechanicalproperties

[1]

,

[8,9]

.

.

,

[2]

.

.

,.

,

,

,

,

[3 5]

;SPS(spark

[3 7]

.

plasmasintering)

(100–600

/min),,

:

,

,

;

[6]

.

,

SPS

;

,

1150

,

[7]

.

,

*

50772081

PCSIRT06441

.

.

/

2008

6

11

;2008

11

.

,

:

,

,