摘要
Mechanical alloying (MA) was applied to Ag B immiscible binary systems by ball milling elemental Ag and B powders. The microstructural characterization of the milled powders was carried out by XRD and TEM. The results show that face centered cubic (FCC) Ag B solid solutions are formed and that the maximum ratio of B to Ag is 4∶1. The structure evolution of Ag B solid solution during ball milling indicates that the formation of Ag B solid solution may be divided into two stages, which are mainly substitutional and interstitial solutions separately. The decomposition of the as milled granules under the irradiation of electron beam is observed by TEM, which reveals that the solid solutions are metastable.
Mechanical alloying (MA) was applied to Ag B immiscible binary systems by ball milling elemental Ag and B powders. The microstructural characterization of the milled powders was carried out by XRD and TEM. The results show that face centered cubic (FCC) Ag B solid solutions are formed and that the maximum ratio of B to Ag is 4∶1. The structure evolution of Ag B solid solution during ball milling indicates that the formation of Ag B solid solution may be divided into two stages, which are mainly substitutional and interstitial solutions separately. The decomposition of the as milled granules under the irradiation of electron beam is observed by TEM, which reveals that the solid solutions are metastable.
出处
《中国有色金属学会会刊：英文版》
CSCD
2003年第5期1066-1069,共4页
Transactions of Nonferrous Metals Society of China
基金
Project(G5 98710 47)supportedbytheNationalNaturalScienceFoundationofChinaandproject(G598054)supportedbytheNaturalScienceFoundationofZhejiangProvince ,China
