简介：Nearlysingle-phaseandpolycrystallinecharge-density-wavecompoundK_(0.3)MoO_3havebeenpreparedbyusingasimplemethod.Inthiswork,K_2CO_3andMoO_3wereusedasstartingmaterialsandreactedbyhotisostaticpressing(HIP)sintering.TheproductisnearlysinglephaseK_(0.3)MoO_3determinedbyX-raypowderdiffraction(XRD)andenergydispersivespectroscopy(EDS).MeasurementoftemperaturedependenceofresistivityrevealsthatthetransportpropertyofpolycrystallineK_(0.3)MoO_3obviouslydiffersfromthatofsinglecrystalduetothegrainboundariesandtheanisotropicstructureinthiskindofcompound.

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简介：Inordertorealizetheco-firingwithAg/Pdelectrodesinmultilayerdevices,Pb(Zn1/3Nb2/3)1-,-yZrxTiyO3(0.25＜x＜0.35,0.25＜y＜0.35)piezoelectricceramics(hereafterdesignatedPZN-PZT)modifiedbyLa2O3hasbeenpreparedbyconventionaltechniquewithsinteringtemperaturefrom1100℃to1140℃.X-raydiffractionpatternsdemonstratedthatpureperovskitephasewasobtained.Secondaryelectronimage(SEI)showedthatcrystallinegrainsinceramicswerewellgrown.d33ofmanufacturedsamplewasashighas560×10-12C/N.kpwasabout0.61andtgδabout30×10-3.TheexistenceofliquidphaseexaminedbyelectrondiffractioninPZN-PZTsampleisbeneficialtosinteringoftheceramic.

简介：AseriesofCd1-xZnxS/K2La2Ti3O10compositesweresynthesizedviaasimpleco-precipitationmethod.ThepreparedsampleswerecharacterizedbyX-raydiffraction（XRD）,scanningelectronmicroscopy（SEM）,X-rayenergydispersivespectroscopy（EDX）,ultraviolet-visiblediffusereflection（UV-Vis）,X-rayphotoelectronspectroscopy（XPS）andphotoluminescence（PL）measurements.ThecompositestructuresconsistedofCd1-xZnxSnanoparticlesevenlydistributedonthesurfaceofK2La2Ti3O10.TheabsorptionedgeofK2La2Ti3O10shiftedtothevisiblelightregionuponintroductionoftheCd1-xZnxSnanoparticles.Thephotocatalyticactivitiesofthecatalystswereevaluatedbyhydrogenproductionundervisiblelightirradiation.ThepreparedCd0.8Zn0.2S（30wt%）/K2La2Ti3O10exhibitedhigherphotocatalyticactivity,evolving6.92mmol/gH2undervisiblelightirradiationfor3h.ThepromotedphotocatalyticactivityofthecompositeswasattributedtothesynergisticeffectbetweenCd1-xZnxSandK2La2Ti3O10,whichresultedinenhancedseparationofphotogeneratedelectronsandholes.

简介：氧化铜对乙炔的聚合生长表现出较高的催化活性。利用弱碱NH3·H2O沉淀Cu（Ac）2，将所得的Cu-（0H）2真空加热到350℃后通入乙炔气体进行碳纤维的催化生长。再把等量的Cu（OH）。放入管式炉中，在氢气气氛中升温到350℃后通入乙炔气体催化生长碳纤维。对所得的样品进行SEM、XRD等表征分析。结果表明，无论是铜粒子还是氧化铜都能够催化生长直线型碳纤维，氢气对催化剂的预还原处理能够提高纤维的纯度，纤维的产量受温度影响，并在350℃时达到最大值；温度过高，纤维的产量降低。

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简介：AnewcompoundK6Ti0.67Nb15.33O42waspreparedforthefirsttimebysolidstatereactioninK2O-Ni2O3-Nb2O5ternarysystem.Thenewcompoundwascharacterizedbyelectronprobe,X-raypowderdiffractionandDTA.TheresultofX-raypowderdiffractionshowsthatK6Ti0.67Nb15.33O42crystallizesthehexagonalsystemwithunitcellparametersa=9.1341(5)A,c=12.090(1)A.andspacegroupP62/mcm(193).

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简介：ThetransportpropertiesintheLa2/3(Ca1-xSrx)1/3MnO3(x=0,1/3,2/3)filmspreparedusingtheRFmagnetronsputteringmethodwereinvestigated.TheeffectoftheCa,Srdouble-dopingattheApositionintheLa2/3A1/3MnO3onthestructureofthetargetsandtransportofthefilmshasbeenstudied.Withtheincreaseofx,thestructuresofthetargetstransformfromtherhombohedralphasetothecubicphase;themetal-insulatorphasetransitiontemperature(Tp)ofthefilmsincreases;andthecorrespondingpeakresistivitydecreases.Allthephenomenacanbequalitativelyexplainedbythelatticeeffect.

简介：据报道，京东方科技集团（BOE）将加速开拓日本市场。该公司董事长王东升曾表示，最快将于2013年向日本提供分辨率高达高清（HD）面板4倍的“4K”高精细面板。京东方已于2011年11月设立了日本法人。京东方将以高精细面板为契机，加快开拓以大电子厂商为主要对象的日本市场。

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简介：CH3SiCl3(山)-H2-Ar系统被使用了原文如此与化学蒸汽免职(CVD)准备电影在这份报纸的方法。为三个方面原文如此拍摄，对生长率，表面粗糙，厚度和相对密度的一些重要影响由山一致性带了主要与运动始於西班牙的纸牌赌博carlo(KMC)被讨论了方法。模拟结果证明与不同免职温度为到山(H2/MTS)的H2的摩尔比率有某个规模。当山一致性增加时，生长率和三个方面的表面粗糙都增加关系，它表明近似线性。当增加三方面厚度的趋势显然是不同的时，三个方面的厚度也增加。尽管三个方面的相对密度都增加，增加的趋势与山一致性增加显示出小差别。

简介：日本帝人公司旗下子公司TohoTenax日前表示，计划在德国Wuppertal新建一条1700吨／年碳纤维生产线，并在2009年8月建成投产。这个项目投资额为5100万欧元，届时TohoTenax在Wuppertal的碳纤维年产能将达N5100吨。此外，TohoTenax目前正在日本三岛新建一条2700吨／年碳纤维生产线，预计2008年4月建成投产，届时公司在三岛的碳纤维年产能将达到6400吨。

简介：ThethermodynamicphasestabilityareadiagramsofBCl3-NH3-SiCl4-H2-ArsystemwereplottedviaFactsagesoftwaretopredictthekineticexperimentalresults.Theeffectsofparameters（ie,partialpressureofreactants,depositiontemperatureandtotalpressure）onthedistributionregionsofsolidphaseproductswereanalyzedbasedonthediagrams.Theresultsshowthat：（a）Solidphaseproductsaremainlyaffectedbydepositiontemperature.TheareaofBN＋Si3N4phaseincreaseswiththetemperaturerisingfrom650to900℃,anddecreaseswiththetemperaturerisingfrom900to1200℃;（b）Whentemperatureandtotalpressureareconstants,BN＋Si3N4phaseexistsatahighpartialpressureofNH3;（c）Theeffectoftotalsystempressureiscorrelatedtodepositiontemperature.Thetemperaturerangingfrom700to900℃underlowtotalpressureistheoptimumconditionforthedeposition.（d）Appropriatekineticparameterscanbedeterminedbasedontheresultsofthermodynamiccalculation.Si–B–Ncoatingisobtainedvialowpressurechemicalvapordeposition.TheanalysisbyX-rayphotoelectronspectroscopyindicatesthatB–NandSi–Narethemainchemicalbondsofthecoating.

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简介：Layeredcathodematerialsofhigh-temperaturelithiumbatteries,LiNi1/3Mn1/3Co1/3O2aresynthesizedbyasol-gelmethodwithvariationinfinalsinteringtemperatureforboreholeapplications.Thestructure,morphologyandhigh-temperaturedischargeperformanceoftheseresultingproductsareinvestigatedbyX-RayDiffraction（XRD）,scanningelectronmicroscopy（SEM）,laserparticlesizeanalysis,galvanostaticandpulsedischarge.Theresultsofstructuralanalysisindicatethatthesamplesinteredat800℃hasthecharacteristicsofgoodcrystallinity,narrowsizedistributionandlargespecificsurfaceareaatthesametime.Thedischargeexperimentsalsoindicatethatthissamplehasthebestelectrochemicalproperties,withthemaximumdischargecapacitiesof314.57and434.14mAh·g-1at200and300℃respectivelyandtheminimumcellinternalresistancesatbothtemperatures.

简介：利用药芯焊丝对已磨损的K360耐磨钢进行CO2气体保护堆焊修复，并采用不同硬度的23MnNiMoCr54强钢与堆焊层配副进行对磨试验。结果表明，当对磨材料硬度大于堆焊层硬度大约HRC3时，两种材料配对形成的摩擦副摩擦系数较小，磨损量较小，磨损面较平整。堆焊层的

简介：TheRamanspectraof3%(molefraction)Y2O3-ZrO2(3Y)areobtainedatdifferenttemperaturefrom77Kto853K.Theresultsshowthat260cm-1Egand460cm-1Egmodesonthespectrashifttowardlowerwavenumberwiththeincreaseoftemperature;meanwhile,thecontinuityoftheHalfWidthatHalfMaximum(HWHM)andwavenumber(frequency)ofRamanbandsarebrokenandt-phaseonlypartiallytransformstom-phaseat523K.Basedontheexperimentalresults,thispaperdiscussesthet-phaselatticevibrationof3YandpresentstheimagesofvibrationdisplacementofsixRaman-activemodesfort-phaseofZrO2.TheanalysisindicatesthattherearediversitiesexistinginthedisplacementoftheatomicvibrationofRaman-activemodesbecauseoftheirdifferentsymmetriesatvarioustemperature,whichleadstothedifferentchangetendenciesofRamanbands.Furthermore,theabruptchangesofsomeRaman-activemodesindicatingtheatomicdisplacementareassumedtobethecondensationsofphononmodesinthet→mphasetransition.