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1、JMaterSci(2009)44:1–39DOI10.1007/s10853-008-3008-0REVIEWReview:liquidphasesinteringRandallM.GermanÆPavanSuriÆSeongJinParkReceived:22May2008/Accepted:16September2008/Publishedonline:11December2008ÓSpringerScience+BusinessMedia,LLC200833AbstractLiquidphasesint
2、ering(LPS)isaprocessforCSolidconcentrationinthematrix,m/morforminghighperformance,multiple-phasecomponentsdimensionlessfrompowders.ItinvolvessinteringunderconditionswhereCGGrainconnectivity,dimensionlesssolidgrainscoexistwithawettingliquid.ManyvariantsofCSSC
3、ontiguity,dimensionlessLPSareappliedtoawiderangeofengineeringmaterials.DParticlesize,m(convenientunits:lm)ExampleapplicationsforthistechnologyarefoundinD1Firsteigenvalueofdiameterofcurvature,mautomobileengineconnectingrodsandhigh-speedmetal(convenientunits:l
4、m)cuttinginserts.ScientificadvancesinunderstandingLPSD2Secondeigenvalueofdiameterofcurvature,mbeganinthe1950s.Theresultingquantitativeprocess(convenientunits:lm)modelsarenowembeddedincomputersimulationstoDSTemperature-dependentsoliddiffusivity2enablepredictio
5、nsofthesinteredcomponentdimensions,intheliquid,m/smicrostructure,andproperties.However,thereareremain-F(G)Cumulativegrainsizedistribution,ingareasinneedofresearchattention.ThisLPSreview,dimensionless[0,1]basedonover2,500publications,outlineswhathappensF(L)Cu
6、mulativeinterceptsizedistribution,whenmixedpowdersareheatedtotheLPStemperature,dimensionless[0,1]withafocusonthedensificationandmicrostructureevolu-GGrainsize,m(convenientunits:lm)tionevents.G1Biggergrainsize,m(convenientunits:lm)G2Smallergrainsize,m(convenie
7、ntunits:lm)G50Mediangrainsize,m(convenientunits:lm)K1MechanismdependentparameterfornecksizeNomenclaturemmratio,m/s(convenientunits:lm/s)ANCcos(u/2),dimensionlessK2MechanismdependentparameterforsinteringASolid–solidcontactarea,m2(convenientunits:m2m2SSshrinka
8、ge,m/s(convenientunits:lm/s)2lm)K3Materialconstantinthedensificationrate33calculation,m/s(convenientunits:lm/s)R.M.GermanK4Materialconstantinthegraingrowthrate2CollegeofEngineering,SanDiegoStateU
