简介：Ｐａｒｔｉｃｌｅ－ｐａｒｔｉｃｌｅＣｏｒｒｅｌａｔｉｏｎａｎｄＥｍｉｓｓｉｏｎＴｉｍｅｆｏｒ４０Ａｒ＋１９７ＡｕＣｏｌｌｉｓｉｏｎｓａｔ２５ＭｅＶ／ｕ￥ＨｅＺｈｉｙｏｎｇ；ＤｕａｎＬｉｍｉｎ；ＬｉＺｕｙｕ；ＪｉｎＧｅｎｍｉｎ...

简介：Siliconcarbidefiber/siliconcarbidematrix(SiCf/SiC)compositesareofinterestasafuelcladdingandstructuralmaterialindesignsofadvancednuclearreactorduetotheirsuperiorthermo-mechanicalpropertiesandstabilitiesandlowcross-sectionforneutroncaptureunderthesevereserviceenvironmentincludinghightemperatureandhighenergyneutronbombardment.SiCf/SiCcompositionsconsistsofSiCfiberandSiCmatrixwhichexistinwellover100polymorphsdependentonthevariedstackingofSi-Cclose-packedatomicplanes,2H-SiC,4H-SiC,6H-SiC,3C-SiC,15R-SiC,etc.EnergeticHeatomscanbecreatedandaccumulatedvianuclearreactions.HeatomsagglomerateandcoarsenintoHebubblesandcandeterioratestructuralpropertiesbyinducingcrackandcreep.Inthisexperiment,thedamageofn-type4H-SiCwafers(researchstandard,suppliedbytheCreeResearchInc.)withathicknessof0.38mmimplantedwith100keVHe+toafluenceof31016He+/cm2andpost-implantation-annealedbehavioratdifferenttemperaturewerestudiedusingRamanscatteringspectroscopy.

简介：Ｌｉｇｈｔ　Ｃｈａｒｇｅｄ　Ｐａｒｔｉｃｌｅ　Ｍｅａｓｕｒｅｍｅｎｔ　ｉｎ　Ｃｏｉｎｃｉｄｅｎｃｅ　ｗｉｔｈ　Ｆｉｓｓｉｏｎ　Ｆｒａｇｍｅｎｔｓ　ｉｎ　Ｒｅａｃｔｉｏｎ　ｏｆ　２５ＭｅＶ／ｕ　４０Ａｒ＋２０９ＢｉＬｉｇｈｔＣｈａｒｇｅｄＰａ...

简介：ＣｏｒｒｅｌａｔｉｖｅＭｅａｓｕｒｅｍｅｎｔｓｏｆＦｉｓｓｉｏｎＦｒａｇｍｅｎｔｓａｎｄＬｉｇｈｔＰａｒｔｉｃｌｅｓ（α，ｐ）ｉｎ　Ｒｅａｃｔｉｏｎｓｏｆ４０Ａｒ＋２０９Ｂｉ，ｎａｔＡｇａｔ２５ＭｅＶ／ｕ￥ＷｕＥ?..

简介：Ｔｈｒｅｅｆｏｌｄ　Ｆｒａｇｍｅｎｔａｔｉｏｎ　ｏｆ　Ｈｏｔ　Ｃｏｍｐｏｕｎｄ　Ｎｕｃｌｅｉ　ｉｎ　２５　ＭｅＶ／ｕ４０Ａｒ＋１１５Ｉｎ，　１０３Ｒｈ　ａｎｄ　９３Ｎｂ　ＲｅａｃｔｉｏｎｓＴｈｒｅｅｆｏｌｄＦｒａｇｍｅｎｔａｔｉｏ...

简介：ＥｖａｐｏｒａｔｉｏｎｏｆＩｎｔｅｒｍｅｄｉａｔｅ－ｍａｓｓＦｒａｇｍｅｎｔｓｆｒｏｍＨｏｔ－ｎｕｃｌｅｉＰｒｏｄｕｃｅｄｂｙ２５ＭｅＶ／ｕ４０ＡｒＢｏｍｂａｒｄｉｎｇ１５９ＴｂＴａｒｇｅｔ￥ＪｉａｎｇＤｏｎｇｘｉｎｇ；...

简介：用机械合金化方法制备了(FeAl3)75Zr25和(FeAl3)50Zr50非晶态合金,用X射线衍射仪和热分析仪对制备的非晶态合金的结构特性及热稳定性进行了研究,用振动样品磁强计对(FeAl3)75Zr25和(FeAl3)50Zr50混合粉末在机械球磨过程中的磁性变化进行了研究,并对其晶化产物及其晶化后合金的磁性进行了分析。结果表明:(FeAl3)75Zr25的晶化产物为Fe3Zr和Al1.65Fe0.33Zr;(FeAl3)50Zr50非晶态合金的晶化产物为FeZr2和AlZr2。(FeAl3)75Z