超细镍粉体及其复合材料研究

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1、AbstraCtABSTRACTThisthesisinvestigatedfirstlythesynthesisoful1rafineulcke1poWdersbyliquidp腼ereductionmethodTheinuencesofPHvalue，NiZ十concentration，PolyVinylPyrolidone(PVP)concentratlo几SDSconcentralionandreactlontemPeratureonParticlediameter，morphologyofnickelPowderswereinvest1gatedrespectiv

2、elybyX-ray，im昭eanalysismeterandlasergrallu』而tyanalysismeter.TheresultsshowedPHva1Llea月七ctedthevelocityofreactionandPurityofnickel即wders;BOthSDSandPVpretardedthevelocityofreactiongreatly，andProPerconcentrationofthemcouldcol1trolnicke1Powdersgranl11arity;ThePolygonal，gooddisPersibilityandthe

3、averageParticlediameteraro助dl协multrafinenickelpowderscouldbesynlbes流dwi山55℃，PH=13，bothNiZ十andsns。oncentrationis0.1259/nll.ThroughstudyonthecourseProductsofreacti叽Theresultsshowed[N12+]/困2H4]coulddirectlyafectre叭ionmechanism·Second】y)NickelpowderscomPositeswithethoxylineisPreParedandnickel卯

4、wdersispreParedbyPreviousmethod.studyonitsPropeniesshowedtheencaPsulationmaterialssoftn1agnetismpe而rmancebecanlebeller诚thmore垃ckelPowderslnlowfrequency，self-inductance(L)deeraseobviously.Q一伪ctorbasalnlostlinearityrelationshiP诫thfrequency.从飞enmassratioofa‘elonetoe1hoxylneis0.2and0.4resPecti

5、vely，theencapsulationmalerlalsLval讹明dQva】tledecrasewithmorePA65O.Butwhenmassrati。。f朗etonetoethoxvlineis众6，theLvalueandQvalueincreasewithmorePA65O.ThroughsludyoncolnP0sitemetallicphase妙metallograPhicmicroscope，theresultsshowedwhenmassratioofnickel加Wderstoethoxylineiso.25，nickelpowdersisnot铭

6、脚gatio几butwhenmassratioofnickelPowderstoe1hOxylineisbiggerthan0.25，therislotsof眼『egation.A扣1ealingbadliuleinfluenceonmeta11icPhasemicroscoPicstructUre.Tl廿oughstudyonanealingtreatmentofcomPosite，theresultsshowedtheontima1timeandtemperatureofanealingisthalld8o℃respectivelv.andProPeranealingt

7、reatmentcou1dincreaseComP0sitemagnetOconduct1vityis268.33nH/m俪thfis500kwhenmassratioofethoxyline，PA650，即etoneandnickelpowdersisl，1，0.6，1.Keywords:preParation;liquidPhasereduction;comPosite;ethoxyline学位论文独创性声明学位论文独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果.据我所知，除