陶瓷材料合成与制备化学讲义英文

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1、AdvancedCeramicsProcessingLecturenotesLouisWinnubstUT-code:373701UniversityofTwenteFacultyofScienceandTechnologyP.O.Box2177500AEEnschedeTheNetherlandse-mail:a.j.a.winnubst@utwente.nlAugust20083PrefaceTheselecturenotesareintendedforacourseonAdvancedCeramicsProcessing.Thisisstil

2、ladraftversion.Somepartsarenotcomplete(especiallymorequantificationisnecessary)Thegeneralaimofthiscourseistoobtaininsightsinprocesses,whichplayaroleinthefabricationofinorganic(orceramic)materialsandceramiccoatings.Thefabricationprocessistreatedandtheimportanceisemphasizedforun

3、derstandingtheeffectsofprocessingvariablesontheevolutionofmicrostructuralparameters.Ifonehassufficientinsightintheseveralprocessstepsitispossibletomakeareproduciblematerialwithregardtopropertiesandmicrostructure.Theobjectiveinmaterialsprocessengineeringistofindrelationsbetween

4、(desired)materialspropertiesandrelevantmicrostructuralparametersononesideandtounderstandwhichprocessparameterchangesacertainmicrostructuralparameterontheotherhand.Themicrostructurein-cludescharacteristicslikecrystalstructure,chemicalcomposition,crystallitesizeandaggregateoragg

5、lomeratemorphology,poresizeandporemorphology.Theintegralceramicfabricationprocessisdividedintothefollowingprocessstepsorbasicproc-esses:·Powderpreparation·Powdertreatmentslikemillingandmixing·Formingintoagreenshape·Coatingtechniques·SinteringEachstephasitsspecificinfluenceonth

6、emicrostructure.Thereforecontrolandknowledgeofthewholeprocessisimportant.Optimalpropertiesrequireoptimisationandcontrolofeachofthesestepsinacoherentway.Thefollowingbasicphenomenawillbetreatedinthecourseforobtainingabetterunderstandingofthebasicprocesses:·Particlesizeandmorphol

7、ogy·Interactionbetweenparticles(agglomeration,suspensionstability,rheology,etc.)·Nucleationandcrystallisation·Reactionsbetweensolidstateparticles4Literature.Thefollowingbookscoverthebroadfieldofceramicprocessengineering:§J.S.Reed“PrinciplesofCeramicProcessing”2nded.,JohnWilley

8、&Sons(NewYork)1995(ISBN0-471-59721-X)§W.D.Kingery,H.K.Bowen,D