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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Fluorescence lifetime and quantum efficiency of Y2O3 : Eu nanocrystals - art. no. 60300 会议论文 2006 Meng Q. Y.; Chen B. J.; Xu W.; Wang X. J.; Xie Y. H.; Lu S. Z.; Lai H. S.; Yang Y. M.; Zhao X. X.; Di W. H.; Ren G. Z. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/28 Upconversion luminescence properties of Y2O3:Yb 3+, Er3+ nanostructures (EI CONFERENCE) 会议论文 De G.; Qin W.; Zhang J.; Zhang J.; Wang Y.; Cao C.; Cui Y. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 Cubic Y2O3 nanostructures doped with Yb3+ and Er3+ ions were synthesized by a facile hydrothermal method. Three distinct shapes such as nanotubes  nanospheres and nanoflakes formed in the products by adjusting the pH value of reacting solution. Powder X-ray diffraction analyses indicate that all the three nanostructures are pure cubic phase  while electron microscopy measurements confirm the formation of different morphologies. These nanostructures exhibit strong visible upconversion luminescence under the excitation of a 978-nm diode laser. In Yb3+- and Er3+- codoped Y2O3 nanocrystals  the relative intensity of green emission became stronger as the size and morphology of sample changed from tubes to flakes. 2006 Elsevier B.V. All rights reserved.   Spark Plasma Sintering Behavior of 93W-5.28Ni-1.32Fe-0.4Y(2)O(3) Heavy Alloy Powders (CPCI-S收录) 会议论文 FRONTIERS OF MANUFACTURING AND DESIGN SCIENCE, PTS 1-4 作者:  Hu, Ke[1];  Li, Xiaoqiang[1];  Qu, Shengguan[1] 收藏  |  浏览/下载：0/0  |  提交时间：2019/04/15 spark plasma sintering  tungsten heavy alloy  sintering behavior  Y2O3