简介：TheantibacterialeffectofcarryingsilverB2O3-SiO2-Na2Oglassmaterialwasstudiedbymeansofantibacterialring,nephelometery,MICvalue,thinfilmattachmentandmicrocalorimetry,respectively.TheexperimentalresultsoffivekindsofantibacterialtestmethodsarealmostidenticalandcanverifythatcarryingsilverB2O3-SiO2-Na2Oglassmaterialexertsanexcellentantibacterialperformance.Antibacterialringandnephelometeryaresimple,quick,buttheprecisionisrestrictive.MICvalue,thinfilmattachmentmethodandmicrocalorimetrycanquantitativelycomparetheantibacterialeffectsoftheantibacterialglassmaterial.Comparedwiththetraditionalmicrobetestmethods,themicrocalorimetrycananalyzetheinhibitingeffectofthecell'sgrowthandmetabolismontheantibacterialglassmaterialbymonitoringthethermaleffectcontinuouslyandautomatically.
简介：Throughmeasuringthecoefficientoflinearexpansion,thestructureandpropertiesoftheLi2O-Al2O3-SiO2lowexpansionglassceramicscontainingB2O3arestudiedbyJRandXRD.ItisshoutnthattheIRmethodisefficientinthestudyoftheglass-ceramicsstructure.Thereisa"Boronabnormality"inthesystemwhichhasanimportantinfluenceonthepropertiesoftheglass-ceramics.
简介：SiO2-B2O3-Al2O3-CaO在低sintering温度使契约成玻璃，高力量被讨论。FTIR和XRD分析被用来与铝的不同内容描绘基本使成玻璃的契约的结构。弯曲力量和热扩大系数也被测试。同时，在660光线衍射(XRD)的sintering温度的合成标本的微观结构，扫描电子显微镜(SEM)分析和其它工具。结果证明分别地，钾和磷的溶解率在95.64wt%lessthan的一种谷物尺寸的条件下面是70wt%和93.7wt%0.074公里，9.78gg-1硫磺的酸，0.5gg-1铵氟化物，160桴???瑳畲瑣牵獥椠?慭湩慴湩摥映吗？？
简介：AnO'-Sialon-Al2O3compositerefractorywaspreparedbyinsitureactionofSi3N4-ZrSiO4-Al2O3mixturewithfusedaluminaaggregates.Densification,insitureactionprocedureandmicrostructureofthematerialwereinvestigatedbymeansofX-raydiffraction,opticalandscanningelectronicmicroscopesandEDAX.
简介：Thesolidaddofthefirstprotonatedzincoborophosphate,(H3O)Zn(H2O)2BP2O8·H2O(1),wassoventothermallysyn-thesizedbythereactionofZn(NO3)2·6H2OandH3BO3withH3PO4inamixedsolvent,andstructurallycharacterizedbysingle-ystalX-raydiffractionanalysis.ItcrystallizesinthehexagonalP6122,a=0.9604(4)nm,c=1.5297(6)nm,V=1.2218(8)nm^3,Dc=2.921g/cm^3,Z=6,F(000)=1080,μ=3.495mm^-1.Thestmchwefeaturesthatthetetrahedra-te-trahedrahdlcesinterconnectedbyoctahedraandstronghydro-gembondinteractionsformathree-dimensionalframework.Theprotonatedwatermoleculesarelocatedatuniquepositions.othercharacterizationsbyIRandthermalanalysisarealsode-scribed.
简介：TheZrO2-Al2O3ceramiccompositeswerepreparedbyappropriatetechniqueswithcommercialZrO2andAl2O3powdersasrawmaterialsandY2O3asstabilizer.TheresultsindicatethatwiththeintroductionofAl2O3intotheZrO2matrixwherethequantityofadditiveY2O3is3.5%(molefraction),thegrowthofZrO2grainsisefficientlyinhibited,whichhelpstheZrO2grainsexistinametastabletetragonalmanner;thushigherstrengthandtoughnessareacquired.Whenthecontentofaluminais20%(massfraction),thebendingstrengthandfracturetoughnessofthecompositesare676.7MPaand10MPa·m1/2respectively,themechanicalbehaviorsareclosetothosepreparedwithZrO2andAl2O3powderssynthesizedthroughwetchemicalapproach.Themechanicalbehaviorsofthecompositesarewellimprovedowingtothedispersiontougheningofaluminagrainsandphasetransformationtougheningofzirconiagrains.
简介：Yb3+complexeswithtwonitrilotriaceticacidmoleculeswerepreparedandtheircompositionsweredeterminedasK3[Yb(nta)2(H2O)]*5H2OandNa3[Yb(nta)2]*6H2Obyelementalanalyses.Theirstructureswerecharacterizedbysingle-crystalX-raydiffractionanalyses.IncomplexK3[Yb(nta)2(H2O)]*5H2O,theYbN2O7partformsanine-coordinatemonocappedsquareantiprismaticstructure.IncomplexNa3[Yb(nta)2]*6H2O,theYbN2O6partformsaneight-coordinatesquareantiprismaticstructure.Itcanbeseenthattheoutercations(K+andNa+)greatlyaffectthecoordinationnumberandcoordinatestructurefromtheseresults.
简介：采用Nb2O3、Y2O3复合稳定剂,制得了高韧性、高强度的四方相ZrO2陶瓷材料,发现在Y2O3-ZrO2材料中加入0.5～1molNb2O3,可使材料在保持原有抗弯强度的同时,一定程度上改善了断裂韧性和相组成。
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![Syntheses and Structural Researches of Yb^<b style='color:red'>3</b>＋ Complexes with Nitrilotriacetic Acids—Nine—coordinate K<b style='color:red'>3</b>[Yb（nta）<b style='color:red'>2</b>（H<b style='color:red'>2</b><b style='color:red'>O</b>）]·5H<b style='color:red'>2</b><b style='color:red'>O</b> and Eight—coordinate <b style='color:red'>Na</b><b style='color:red'>3</b>[Yb（nta）<b style='color:red'>2</b>]·6H<b style='color:red'>2</b><b style='color:red'>O</b> complexes](/image/thesis17 "Syntheses and Structural Researches of Yb^<b style='color:red'>3</b>＋ Complexes with Nitrilotriacetic Acids—Nine—coordinate K<b style='color:red'>3</b>[Yb（nta）<b style='color:red'>2</b>（H<b style='color:red'>2</b><b style='color:red'>O</b>）]·5H<b style='color:red'>2</b><b style='color:red'>O</b> and Eight—coordinate <b style='color:red'>Na</b><b style='color:red'>3</b>[Yb（nta）<b style='color:red'>2</b>]·6H<b style='color:red'>2</b><b style='color:red'>O</b> complexes")
![Imidazole Coordinated Sandwich-type Antimony Polyoxotungstates <b style='color:red'>Na</b>9[ {<b style='color:red'>Na</b>（H=<b style='color:red'>O</b><b style='color:red'>2</b>}<b style='color:red'>3</b>{M（C<b style='color:red'>3</b>H4N<b style='color:red'>2</b>）}<b style='color:red'>3</b>（ Sb W9<b style='color:red'>O</b>33）<b style='color:red'>2</b>]·xH=<b style='color:red'>O</b>（M=Ni^Ⅱ, Co^Ⅱ, Zn^Ⅱ, Mn^Ⅱ）](/image/thesis18 "Imidazole Coordinated Sandwich-type Antimony Polyoxotungstates <b style='color:red'>Na</b>9[ {<b style='color:red'>Na</b>（H=<b style='color:red'>O</b><b style='color:red'>2</b>}<b style='color:red'>3</b>{M（C<b style='color:red'>3</b>H4N<b style='color:red'>2</b>）}<b style='color:red'>3</b>（ Sb W9<b style='color:red'>O</b>33）<b style='color:red'>2</b>]·xH=<b style='color:red'>O</b>（M=Ni^Ⅱ, Co^Ⅱ, Zn^Ⅱ, Mn^Ⅱ）")
