简介：AttheinvitationofShanghaiRareEarthSocietyandotherinstitutions,Dr.MasaakiHamanoatKanegafuchiChemi-calIndustryCo.Ltd.,Japan,gaveaser-tiesoflecturesonSm-CoandNd-Fe-Bbondedmagnets,May28-31,inShanghai.Thereweremorethan150attendersfrommanyresearchinstitutes,producersandapplicationdepartments.Dr.M.Hamanoexplainedindetailsthematerialpreparation,fabricationtech-

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简介：InfluenceofadditivesandcompositionofthematrixonmecharicalpropertiesofSialonbondedcorundumbrickwithappropriatenitridationsinteringcurvewasinvestigatedinpresentpaper.ThephasecompositionandmicrostructureofthesinteredspecimenwereanalyzedbymeansofSEMandXRD.Theresultsindicatethatwithappropriatecontentofultra-finealuminapowderandaditiveA,bothcoldandhotmechanicalpropertiesofspeimensarenotablyenhanced.Themicrostructureofspecimenisdenseandwithlessporosity,Mainphaseofthespecimeniscorundum,β－sialonisalsoobservedasthebondingphase,littleimpurityisobserved.

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简介：(丙烯酸的酸)Chitosan-poly，hydrogel与Eu3+结合了被激进的溶液聚合准备。可被细菌破坏的chitosan，N，N-methylen-diacrylamide，和钾过硫酸盐分别地被用作基本材料，cross-linking代理人，和开始者。结构和hydrogel的热性质被红外线的spectrometry，X光检查衍射，扫描电子显微镜学，和微分扫描热量测定描绘。肿的性质并且荧光灯性能也被描绘。结果证明稀土元素在聚合以后由于化学契约的形成在hydrogel介绍了唯一的分发。hydrogel的玻璃转变温度显著地减少了，它可能更加拓宽它的有弹性的申请的范围。而且，特征荧光灯Eu3+的排放在hydrogel被观察，它优秀光表演是指示的。

简介：在同类的压电的脱衣的平行裂缝的一个周期的数组的问题结合了到机能上地分级的压电的材料为不同类的连续统被调查。材料不同类沿着裂缝的方向作为在指数的功能形式的shear模量的空间变化被代表，这被假定。混合边界价值问题被使用Fourier变换归结为一个单个不可分的方程，并且单个不可分的方程被使用Gauss-Chebyshev集成技术数字地解决。数字结果被获得为材料不同类的不同的值作为裂缝频率的一个函数说明压力紧张因素的变化。

简介：Inordertoovercomecastables'innateimperfectionfrombondphase,wereferaso-called"self-bonded"phasetomullitecastableusingsilicasolwiththehelpofsuperfinepowderasthebindrforfullyexertingthemeritoftheperfectintegralityofcastable,There-searchworkdemonstratesthatcomparingwithlow-cementcastable,thiskindof"self-bonded"mullitecastableischarterizebyhavingperfectintegralityofstructureinthewholescopeoftesttemperature,beingverydense,andexcellentinvolumestability,itsporositychangingverylittleandsmoothly,thecoldandhotstrengthesbeinghighandstable,hightemperaturecompressivecreeplittle.Thisisaverypromisingcastablestructuralrefrctory.

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简介：通常，金投资材料由方石英，石英和灰浆组成。金投资材料的物理性质取决于它的热扩大系数，压缩强度，和粒子尺寸分发。自从方石英和石英的热扩大系数，是2.6X10~(-6)/°C和2.32X10~(-6)/°C分别地，每部件影响的作文比率热并且金投资材料的物理性质。为临床的应用，改进象同类的尺寸分发和热扩大系数那样的金投资材料的性质是必要的。在现在的学习，象金合金投资上的方石英和石英那样的无机的填料的效果被调查改进它的性质。压缩强度和标本的热扩大系数被评估。结果证明那方石英和石英由milling是同类地分布式的。最佳压缩强度分别地在42:22方石英和石英的比率被获得。

简介：Inthebeginningissueof2016,China'srefractoriesinvitedDr.ValeriyMartynenko,thedirectorofUkrainianResearchInstituteofRefractoriesnamedafterA.S.Berezhnoytobetheexecutiveeditor-in-chief.Itisarealinternationalissue.EightpapershavebeenpresentedbyresearchersfromUkraine,Canada,CzechRepublic,Brazil,IsraelandRussia.Twopapers

简介：Acolloidalsilicasolbondedproductrangeisintroducedbyanexampletargetinghightemperatureapplicationsinsteelmaking.Placementandsettingcharacteristicsareshown.Thethermalmechanicalpropertiesandresultingadvantagesarepresentedaswellastheperformanceenhancementincorrosionresistance.PropertiesarecomparedtoacommonULCCproduct.Resultsoftheindustrialtrialphasearediscussed.

简介：Tostudythemechanicalpropertiesofthefilm/substratestructure,thefiniteelementcodeABAQUSv6.9-1isadoptedtosimulatethetensilemechanicalbehaviorofthenanoscalethinfilmbondedtoasubstrate.Thebifurcationphenomenonofthestructureunderuniaxialtensionisfound:thesingle-neckdeformation,themultiple-neckdeformationandtheuniformdeformation.Thesubstrateandthefilmareregardedaspower-hardeningmaterialsobeyingtheJ2deformationtheory.Firstly,theinfluenceofmaterialhardeningmatchontensilebifurcationmodeisanalyzedunderperfectlywell-bondedinterfacecondition.Then,theeffectsofinterfacialstiffnessandothersuperficialdefectssurroundingtheimperfectiononbifurcationmodeareinvestigated.Itisconcludedthatunderthewell-bondedinterfacecondition,ifthestressofthesubstrateislargerthanthefilm,thefilmwilluniformlydeformwiththesubstrate;ifthestressofthesubstrateissmallerthanthefilm,thefilmwillformasingleneck,exceptthecasethataweakly-hardeningfilmisbondedtoasteeply-hardeningsubstratewhenmultipleneckscanbeformed.Withthedecreaseofinterfacialstiffness,theuniformdeformationmodecantransformintothemultiple-neckdeformationmode,andfurthertransformintothesingle-neckdeformationmode.Andotherdefectssurroundingtheimperfectioncaninfluencethewavelengthofdeformationandnecknumber.

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简介：ThermalcharacteristicsarenumericallyinvestigatedforthehybridAlGaInAs/InPonsiliconmicroringlaserswithdifferentringradiiandwidths.Lowthresholdcurrentandlowactiveregiontemperatureriseareexpectedforamicroringlaserwithanarrowringwidth.Basedonthethermalanalysisandthe3Dsimulationformodecharacteristics,ahybridAlGaInAs/InPonsiliconmicroringlaserswithaninnern-electrodelaterallyconfinedbythep-electrodemetalliclayerisfabricatedusinganadhesivebondingtechnique.Athresholdcurrentof4mAisachievedforahybridmicroringlaserwitharadiusof20μmandaringwidthof3.5μmat12°C,andthecorrespondingthresholdcurrentdensityisaslowas1kA∕cm~2.Theinfluenceofthelocationofsiliconwaveguideonoutputperformanceisstudiedexperimentallyforimprovingtheoutputcouplingefficiency.Furthermore,continuous-waveelectricallyinjectedlasingupto55°Cisrealizedforahybridmicroringlaserwitharadiusof30μmandaringwidthof3μm.

简介：HightemperatureoxidationbehavioroftwokindsofnitridebondedSiCbasedrefractorieswasinvestigatedat11001500℃bymeansofX-raydiffractometer,scanningelectronicmicroscopyandthermogravimetry.Theresultsshowthat:(1)withthetemperatureincreasing,theoxidationmassincrementrateofthespecimenincreasesfirstandthendecreases,andoxidationpassivationoccurs;(2)theoxidationresistanceofSiAlONbondedSiCrefractoriesissuperiortothatofSi3N4bondedSiCrefractories;(3)hightemperatureoxidationresultsintheincreaseofcompressivestrengthatroomtemperatureofSiCbasedrefractoriescomparedwithspecimenbeforeoxidation;thecompressivestrengthofSiAlONbondedSiCspecimensoxidizedathightemperaturesdecreaseswiththeincreaseofthetemperatureasaresultofformationandburstofsurfacebubble,whilethedecreaseofcompressivestrengthofSi3N4bondedSiCspecimensoxidizedathightemperaturesisowingtotheincreaseoftheconsistencyofnet-likecrackassociatedwithcristobalitetransformationduringcooling.

简介：ＯＮＴＨＥＦＵＮＤＡＭＥＮＴＡＬＰＲＯＢＬＥＭＦＯＲＡＮＩＮＦＩＮＩＴＥＥＬＡＳＴＩＣＰＬＡＮＥＢＯＮＤＥＤＢＹＤＩＦＦＥＲＥＮＴＡＮＩＳＯＴＲＯＰＩＣＭＡＴＥＲＩＡＬＳＷＩＴＨＣＲＡＣＫＳＺＨＥＮＧＫＥ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃ...

简介：Thermalshockresistantpropertiesofreactionsinteredbauxite-basedβ-Sialonbondedcorundumhavebeeninvestigated,andtheresultsarecomparedwiththoseofAl2O3basedcounterpart.Itisfoundtheyallhaveverygoodthermalshockresistance.Theirresidualstrengthratiosafteronethermalshockcycleat△T=1200℃and△T=1350℃are61%～73%and53%～65%respectively.Theircriticaltemperaturedifference(TSR)is600℃～800℃.TSRparametersarecalculatedbasedonthermalexpansion,modulusofelasticity,andfracturetoughnessdetermined.ThereasonsforimprovingTSRofthesecompositematerialsarediscussed.

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简介：Anovelcomplex,(H3O)2[Ni(2,6-pydc)2]·2H2Owassynthesizedinanaqueoussolutionandcharacterizedbymeansofsingle-crystalX-raydiffraction,elementalanalysesandIRspectra.TheX-raystructuralanalysisrevealedthatthenovelcompoundformsthree-dimensional(3D)networksbybothπ-πstackingandhydrogen-bondinginteractions.Thecrystaldataforthecomplexarea=13.853(3)nm,b=9.6892(19)nm,c=13.732(3)nm,α=90.00°,β=115.52(3)°,Y=90.00°,Z=3,R,=0.0786,wR2=0.1522.