简介:IntheinscriptionsofWesternZhoubronzestherearequantitiesofcalendricaldatarecordingyears,monthsanddays.Ofthemarethosecompletelyindicatingtheyearofking'sreign,themoon,thelunarphase,andthedaydesignatedbytheHeavenlyStemsandEarthlyBranchessystem.TheserecordsareofgreatsignificancetostudyingtheWesternZhoucalendar,establishingthebronzeinscriptioncalendar,andidentifyingthereigningyearsoftheWesternZhoukings.
简介:WhataretheoriginsoftheverydistinctiveancientChinesebronzes?ThequestionhaslongbeendebatedamongscholarsandthispaperattemptstoinvestigatethisdifficultanddemandingquestionbyexploringtheearlymetalobjectsdiscoveredthrougharchaeologythroughoutChina.Theterm‘earlymetals’referstoallpre-Shang(pre-16thcenturyBCE)metalobjectsfoundinChinathataremadeofpurecopper(hongtong红铜,Cu),brass(huangtong黄铜,Cu-Zn),arseniccopper(shentong砷铜,Cu-As)andbronze(qingtong青铜).Theterm‘bronzes'(qingtongqi)refersspecificallytothosedistinctivepiecesmadeofcopper-tin(Cu-Sn),copper-lead(Cu-Pb)andcopper-tin-lead(Cu-Sn-Pb)alloys.
简介:Thevacuumdiffusionbondingoftitaniumalloytotin-bronzehasbeenstudiedandthefeasibilityandappropriateprocessingparametershavebeeninvestigated.Themaximumtensilestrengthofthejointsis168MPa,andafirmjointisobtained.ThemicrostructureofdiffusionbondedjointhasbeenobservedbySEM.X-rayandEPMA,andthemainfactorsaffectingdiffusionbondinghavebeenanalyzed.TheintermetalliccompoundsTi2CuandTiCuwereformedneartheinterface.Thewidthandquantityoftheintermetalliccompoundincreaseswiththeincreaseofthebondingtime.Theformationoftheintermetalliccompoundsresultsinembrittlementofthejointandthepoorjointproperties.
简介:Thebronzeplaquesdecoratedwithanimal,humanorgeometricdesignsweretheornamentsontheleatherbeltsofthenomadicpeople,suchasXiongnu(Hun)andXianbei(Sienpi)inNorthernChinaintheQinandHanDynasties.Theseplaqueshaduniqueregionalandethnicalcharacteristics.Therehavebeenmanydifferentideasontheoriginationofthiskindofplaques.Theauthorplanstogivehisownopinionherebyonthisissue.
简介:SimulatingTestsfortheHeat-treatmentofAncientBronzeMirrorsHeTangkun何堂坤(InstituieolHislori.ofNaturalScience.AcademiaSinicaBeiji...
简介:TherelationshipbetweenEgyptandPalestinecanbetracedbacktotheChalcolithicAgethankstotheevidenceofcurrentexcavationsintheNileDeltaandSinal.PalestinianpotteryandcastmetalobjectsfromtheDeltasitesofMaadi,MinshatAbuOmar,andelsewherehaveprovedcontactswithPalestineinProtodynastic(NagadaⅡ-Ⅲ)times.TheEgyptianProtodynasticPeriodandDynasty1werecontemporarywiththePalestinianEBⅠandEBⅢ,andreliable
简介:TherelationshipbetweenEgyptandPalestineduringtheBronzeAgehasbeendiscussedsincethe1940s.FortheperiodoftheMiddleBronzeAge,theproblemisbothchronologicalandinterpretative.TheendoftheMiddleBronzeAgeisfixedbytheinitialmilitaryactivitiesofDynasty18inPalestinearoundtheendofthe16thcenturyBCE.Butthedatesforthebeginningofthisperiodandthetransitionfromonearchaeologicalphasetoanotherarestilldebated.Lackingagenerallyacceptedsolution,thechronologyadoptedhereisthatofDever---thetransitionfromMBⅠtoMBⅡoccurredaround1800BCE,
简介:为了在钨铜成立新电介质陶艺,组织,有名字的公式Ba4PrFe0.5Nb9.5O30被稳固的州的反应方法准备。微观结构和绝缘的性质用粉末X光检查衍射,领域排放扫描电子显微镜,和可变温度电介质被学习测试系统。结果证明陶艺有一个单个阶段并且与=b=的房间属于P4bm的空间组12.4839(3)?,c=3.9409(5)?,V=614.192(2)?3。频率依赖者电介质性质证明陶艺在房间温度有象Debye一样松驰,当温度依赖者电介质性质显示陶艺是relaxor,松驰由于nanopolars和氧空缺时。陶艺作为温度马厩在电子陶艺有潜在的应用多层的陶器的电容器。