简介：采用电化学阳极氧化法在HF水溶液体系中对钛金属进行表面处理，得到高度规整的TiO2纳米管阵列。主要研究了电解液pH值大小对TiO2纳米管阵列形貌（管径及管长）的影响；用扫描电子显微镜（SEM）对其表面形貌进行表征。结果表明：酸性条件下能形成TiO2纳米管；强碱性环境不利于TiO2纳米管的制备；在可制备TiO2纳米管的pH值范围内，管径和管长随pH值升高而减小。采用微孔模型对pH值的影响机理进行了阐述。

简介：电解质和阳离子的影响上的钢酒吧腐蚀被调查。Ca的三电解质(哦)2，有12.5的pH层次的NaOH和KOH，11.5，10.5，9.5，同时，8.5被准备免费腐蚀潜力和电气化学的阻抗系列(EIS)的方法被用来在电解质在钢酒吧的depassivation上评估阳离子的影响。试验性的结果显示钢工具条的起始的腐蚀pH值被阳离子在电解质影响，在电解质的K+的影响是最显著的，由Na+和Ca2+列在后面。起始的腐蚀pH价值在KOH电解质是10.5，9.5在NaOH电解质并且在Ca比8.5降低(哦)2电解质。

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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

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简介：被动导致电影的压力和危险性在在各种各样的pH价值的3.5%钠氯化物答案的7050铝合金的SCC被慢紧张率测试调查(SSRT)并且流动应力微分方法。结果证明到SCC的被动导致电影的压力和危险性与增加pH减少了价值什么时候pH7，当他们与增加pH增加了时价值什么时候pH>7。然而，当，腐蚀类型被解释脱落腐蚀什么时候pH=1并且14，并且没有电影，在标本的表面上形成。整个变化与pH导致电影的应力和SCC危险性阴谋当，价值两个都被介绍山谷形状。导致电影的压力的标志和数量与被动电影的作文有关，它用X光检查光电子被分析光谱学(XPS)。

简介：Apolyacrylicacid(PAA)/gelatin(Gela)/polyvinylalcohol(PVA)hydrogelwaspreparedbycopolymerization,cooling,andfreezing/thawingmethods.Thistriplenetwork(TN)structurehydrogeldisplayedsuperiormechanicalproperties,lowswellingratioandself-healingproperties,ThesuperiormechanicalpropertiesareattributedtothetriplehelixassociationofGelaandPVAcrystallitesbyreversiblehydrogenbonding.Thecharacterizationresultsindicatedthatthefracturestressandthestrainwere808kPaand370%respectively,whilethecompressionstrengthcouldreach4443kPaandthecompressivemoduluswasupto39MPaunderthedeformationof90%.ThehydrogenbondinginPVAcontributedtomaintainandimprovetheself-healingabilityofhydrogels.Everytypeofhydrogelsexhibitedahigherswellingratiounderalkalineconditions,andtheswellingratiosofPAA,PAA/PVAandPAA/Gelahydrogelswere27.71,12.30and9.09,respectively.ThePAA/Gela/PVATNhydrogelshowedthelowestswellingratio(6.57)amongthesehydrogels.TheseresultsindicatethatthenovelTNhydrogelspossessgoodenvironmentaladaptabilityandhavepotentialapplicationsinthebiomedicalengineeringandsensorfield.

简介：Throughmeasuringthecoefficientoflinearexpansion,thestructureandpropertiesoftheLi2O-Al2O3-SiO2lowexpansionglassceramicscontainingB2O3arestudiedbyJRandXRD.ItisshoutnthattheIRmethodisefficientinthestudyoftheglass-ceramicsstructure.Thereisa"Boronabnormality"inthesystemwhichhasanimportantinfluenceonthepropertiesoftheglass-ceramics.

简介：ConstantloadtestsinNS4solutionpurgedwithN2-5%CO2gasmixturewereconductedonAmericanPetroleumInstitute(API)X80pipelinesteelappliedinthe2ndWest-EastGasPipelineprojectwithandwithoutpreload.TheresultsshowthatcrackscouldinitiateandpropagateinX80pipelinesteelinnear-neutralpHenvironmentunderaconstantloadcondition.Thelifeofcrackinitiationandpropagationincreasedwithdecreasingappliedstress.Preloaddidnotchangeitscorrosionbehaviorobviously.However,preloadreducedthetimeforcrackinitiation.

简介：TheelectronicstructuresofCuS2,CuSe2andCuTe2withpyritestructures,withintheframeworkthedensity-functionaltheoryhavebeeninvestigated.ThecalculatedresultsexplainedtherecentexperimentalresultswhichshowthatthereisnoclearindicationofstrongelectroncorrelationsintheelectronicpropertiesofCupyrites,duetothedominantchalcogenpcharacterratherthandcharacteristicofCuattheFermilevel.

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简介：TheantibacterialeffectofcarryingsilverB2O3-SiO2-Na2Oglassmaterialwasstudiedbymeansofantibacterialring,nephelometery,MICvalue,thinfilmattachmentandmicrocalorimetry,respectively.TheexperimentalresultsoffivekindsofantibacterialtestmethodsarealmostidenticalandcanverifythatcarryingsilverB2O3-SiO2-Na2Oglassmaterialexertsanexcellentantibacterialperformance.Antibacterialringandnephelometeryaresimple,quick,buttheprecisionisrestrictive.MICvalue,thinfilmattachmentmethodandmicrocalorimetrycanquantitativelycomparetheantibacterialeffectsoftheantibacterialglassmaterial.Comparedwiththetraditionalmicrobetestmethods,themicrocalorimetrycananalyzetheinhibitingeffectofthecell'sgrowthandmetabolismontheantibacterialglassmaterialbymonitoringthethermaleffectcontinuouslyandautomatically.

简介：Newvisibletransparent,UVabsorption,andhighinfraredreflectionpropertieshavebeenrealizedbydepositingmultilayerSiO2/ZnO：Al/CeO2-TiO2/SiO2filmsontoglasssubstratesatlowtemperaturebyradiofrequencymagnetronsputtering.OptimumthicknessofSiO2,ZnO：Al（ZAO）andCeO2-TiO2（CTO）filmsweredesignedwiththeaidofthinfilmdesignsoftware.Thedegreeofantireflectioncanbecontrolledbyadjustingthethicknessandrefractiveindex.TheouterSiO2filmcandiminishtheinterferencecoloringandincreasethetransparency;theinnerSiO2filmimprovestheadhesionofthecoatingontheglasssubstrateandpreventsCa2＋,Na＋intheglasssubstratefromenteringtheZAOfilm.Theaveragetransmittanceinthevisiblelightrangeincreasesbynearly18%-20%,ascomparedtodoublelayerZAO/CTOfilms.Andthefilmsdisplayhighinfraredreflectionrateofabove75%inthewavelengthrangeof10-25μmandgoodUVabsorption（〉98%）properties.Thesesystemsareeasytoproduceonalargescaleatlowcostandexhibithighmechanicalandchemicaldurability.ThetriplefunctionalfilmswithhighUVabsorption,antireflectiveandhighinfraredreflectionratewilladapttoapplicationinflatpaneldisplayandarchitecturalcoatingglass,automotiveglass,withdiminishinglightpollutionaswellasdecreasingeyefatigueandincreasingcomfort.

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简介：Inpursuingexcellentsupercapacitorelectrodes,wedesignedaseriesofM0S2/C0S2compositesconsistingofflower-likedMoS2andoctahedron-shapedCoS2throughafacileone-stephydrothermalmethodandinvestigatedtheelectrochemicalperformanceofthesampleswithvarioushydrothermaltime.Duetothecouplingoftwometalspeciesandabigamountofwell-developedCoS2andMoS2,theresultsindicatedthattheMoS2/CoS2compositeselectrodesexhibitedthebestelectrochemicalperfor-mancewithalargespecificcapacitanceof490F/gat2mV/sor400F/gat10A/gamongallsamplesasthehydrothermaltimereached48h(MCS48).Furthermore,theretentionofMCS48is93.1%after10000cyclesat10A/g,whichmanifeststheexcellentcyclingstability.TheoutstandingelectrochemicalperformanceofMCS48indicatesthatitcouldbeaverypromisingandnovelenergystoragematerialforsupercapacitorsinthefuture.

简介：以便得到TiB2-Al2O3的同质的混合物和协议，一个表面修正方法被用来准备nano规模的杂交Al2O3涂的TiB2粒子。PE蜡粒子是第一到由杂交，然后nano规模Al2O3粒子的TiB2粒子上涂又是涂的到由PE蜡粒子涂的TiB2的表面上。SEM，TEM和版本被用来描绘同样收到的核心/壳粒子和它的协议的微观结构。试验性的结果显示出那粒子规模TiB2和Al2O3的同质的分散能不仅在混合粉末而且在使脱蜡的协议被形成。协议当时是由煤气压的sintering(GPS)的sintered。物件顶端的装饰物产品显示出与参考样品由正常方法制作了作比较的改进技工性质。

简介：铁磁性微晶玻璃由于具有磁性和生物活性，可以用作磁感应热疗的热种子材料。采用SiO2-Na2O-CaO-P2O5-Fe2O3五元系统，通过共沉淀-熔融法和熔融法两种不同的方法制备铁磁性微晶玻璃，利用XRD确定其晶相并计算晶体的晶格常数和晶粒尺寸，并通过VSM表征样品的磁性能。结果表明，玻璃液在自然冷却的过程中就形成了大量的磁铁矿，不经过热处理过程即可制得具有磁铁矿唯一晶相的铁磁性微晶玻璃并具有生物活性。共沉淀-熔融法制备的样品磁性更强。

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：TiB2ceramicspowderwassynthesizedfromB2O3-TiO2-Mgsystem.TheeffectsofTiB2additionasdiluentonthecombustionsynthesisprocesswereinvestigated.TheresultsofthermodynamiccalculationandexperimentsshowthattheincreaseofTiB2contentrangingfrom0to20wt%canreducetheadiabatictemperatureTadfrom3100Kto2896KandcombustiontemperatureTcfrom2139Kto1621Krespectively.TheparticlesizeandhalfwidthoftheparticledistributionarealsoincreasedwiththeadditionofTiB2increasingfrom0to20wt%.ThecombustionproductisamixtureofTiB2,MgO,andotherintermediatephases.TheleachedproductcontainsmainlyTiB2,TiO2andTiN,anditsoxygencontentis7.77wt%.

简介：TiO_2isapromisingphotocatalyst.However,thelowphotocatalyticefficiencycallsforthemodificationofTiO_2.Metal-andnonmetal-dopingofTiO_2havebeenprovedtobeeffectivewaystoenhancephotocatalyticproperties.Thisreviewprovidesadeepinsightintotheunderstandingofthemetal-andnonmetal-dopedTiO_2photocatalysts.ThisarticlebeginswiththeintroductionofthecrystalstructuresofTiO_2andapplicationsofTiO_2materials.Wethenreviewedthedoped-TiO_2systemintwocategories:(1)metal-dopedTiO_2photocatalystssystem,and(2)nonmetal-dopedTiO_2photocatalystssystem.Bothexperimentalresultsandtheoreticalanalysesareelaboratedinthissection.Inthefollowingpart,fortheadvantagesofTiO_2thinfilmsoverparticles,variouspreparationmethodstoobtainTiO_2thinfilmsarebrieflydiscussed.Finally,thisreviewendswithaconciseconclusionandoutlookofnewtrendsinthedevelopmentofTiO_2-basedphotocatalysts.