简介:ApreliminarystudywasmadeontheantibacterialbehaviorofanewlydesignedCu-bearingtype200stainlesssteelbydifferentmethodsincludingVickershardnessmeasurement,electrochemicaltestandantibacterialtest.TheresultsshowedthatCu-richprecipitationscausedbythesaturatedCuinthesteelmatrixwasnotonlyacrucialfactorforitsexcellentantibacterialcapability,butalsoforitsequivalentcorrosionresistanceasgoodasthecommercialtype200stainlesssteel.
简介:在这份报纸,包含四羧化物的anionic表面活化剂的一种新类型被四步的合成反应包括bromination反应和主要酰胺综合保护的反应。中介和在整个合成过程的每步的最后的产品被1HNMR和MS描绘。anionic表面活化剂的纯化通过再结晶和硅石胶化列层析的联合被完成。结构和在不同温度的这表面活化剂的批评micelle集中(CMC)也被调查。对容易的不同传统的monocarboxylate表面活化剂形成薄片状的mesostructure,这表面活化剂有六角形的mesophase结构和比较地低的CMC,希望在mesoporous金属氧化物的准备被使用。
简介:有公式La9.33Si6O26的磷灰石类型镧硅酸盐被大音阶的第五音胶化过程准备。答案的pH价值影响的大音阶的第五音的同质被调查。大音阶的第五音的粘性稍微增加第一然后因为占优势的反应机制从水解作用反应改变到冷凝作用反应,突然地增加。另外,为粘性的增加的发作时间从pH弄短1到pH4。冻结时间与增加答案的pH减少。因此,大音阶的第五音的pH应该是不到4形成胶化。有起始的pH的大音阶的第五音希腊语的第六个字母潜力和最大的稳定性的2表演最大值价值。为有起始的pH的样品2,在弄干的胶化被锻烧在以后,纯磷灰石类型镧硅酸盐La9.33Si6O26成功地被准备了1000
简介:Thestudyofthetriplejunctionsofthegrainboundariesinsomefccsolidsolutions,orderedalloysandintermetallicswithL12hasbeencarriedoutusingtheopticalmetallographyandTEMmethods.Two-typesofthetriplejunctionswerefoundinthealloysinvestigated(1),consistingoftheboundariesoftherandom(RT),and(2),consistingoftheRTboundaryandthespecialboundaries(ST).TherelativevaluesoftheRTandSTboundaryenergyweredeterminedonthebasisofthemeasurementsoftheanglesbetweenthegrainboundaryplanes.IthasbeenshownthattheenergyofSTboundariesincreaseswiththeincreaseofthestackingfault(SF)energy.TheenergyoftheRTboundariesdoesnotdependontheSFenergy.
简介:WithFe(NO3)39H2OandBi(NO3)35H2Oasrawmaterials,differentsillenite-typecompoundsandelementalbismuthwerepreparedbyafacileone-potsolvothermalmethodusingH2O,C2H5OH,(CH2OH)2andC3H8O3assolvents,respec-tively.Thestructure,morphology,elementalcompositionsandpropertiesofsampleswereexaminedbyXRD,SEM,TEM,ICP,XPS,N2adsorptionanddesorption,UV-visDRSandPL.ThephotocatalyticactivitiesofdifferentsampleswereevaluatedbythephotodegradationofRhBundervisible-lightirradiation(λ>400nm),andresultsshowthatBi36Fe2O57preparedusingC2H5OHasthesolventownstheoptimumperformance.Inordertoexplorethereactionmechanism,anadditionalexperimentwasdesignedtoinvestigatethemainactivespeciesduringthephotodegradationprocessviadissolvingdifferenttrappingagentsinthereactionsolutionbeforelightirradiation.TheresultsshowthatsuperoxideradicalanionsplayamajorroleinthissystemsincetheRhBdegradationwassignificantlysuppressedaftertheadditionofbenzoquinone.
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