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浏览/检索结果: 共21条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择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作者升序作者降序 Fracture morphology and mechanism of a directionally solidified Al2O3/Y3Al5O12 eutectic single crystal 期刊论文  OAI收割 SCRIPTA MATERIALIA, 2017, 卷号: 135, 页码: 46-49 Wang, Xu; Zhong, Yujie; Wang, Dong; Xian, Quangang; Wang, Jingyang; Lou, Langhong; Zhang, Jian 收藏  |  浏览/下载：30/0  |  提交时间：2017/08/17 Al2O3/Y3Al5O12 single crystal  Directional solidification  Interface  Fracture  Toughness   Mechanism of eutectic growth in directional solidification of an Al2O3/Y3Al5O12 crystal 期刊论文  OAI收割 SCRIPTA MATERIALIA, 2016, 卷号: 116, 页码: 44-48 Wang, Xu; Wang, Dong; Zhang, Hui; Tian, Zhilin; Du, Kui; Wang, Jingyang; Lou, Langhong; Zhang, Jian 收藏  |  浏览/下载：34/0  |  提交时间：2016/08/22 Al2O3/Y3Al5O12 eutectic crystal  Interface structure  Directional solidification  Electron backscattered diffraction   Growth and spectroscopic properties of Ti-doped sapphire single-crystal fibers 期刊论文  OAI收割 OPTICAL MATERIALS, 2015, 卷号: 47, 页码: 495-500 作者:  Zhou, Dahua;  Xia, Changtai;  Guyot, Yannick;  Zhong, Jiuping;  Xu, Xiaodong   |  收藏  |  浏览/下载：32/0  |  提交时间：2018/03/15 Ti:Al2o3  Micro-pulling-down Method  Crystal Fiber  Spectral Properties   Unified calculations of optical and EPR data for Cu3+ ion in Al2O3 crystal 期刊论文  OAI收割 Journal of Magnetism and Magnetic Materials, 2015, 卷号: 377, 页码: 190-192 W. L. Feng; W. C. Zheng; J. Y. Xue; F. Zhao 收藏  |  浏览/下载：31/0  |  提交时间：2015/01/14 Electron paramagnetic resonance  Optical spectra  Crystal and  ligand-field theory  Defect structure  Cu3+  Al2O3  spin-hamiltonian parameters  atomic screening constants  temperature-dependence  scf functions  ruby  ti-al2o3  centers  spectra  fields  laser   Microstructure evolution of Al2O3/Y3Al5O12 eutectic crystal during directional solidification 期刊论文  OAI收割 SCRIPTA MATERIALIA, 2015, 卷号: 108, 页码: 31-34 Wang, Xu; Wang, Jingyang; Sun, Luchao; Zhang, Hui; Wang, Li; Lou, Langhong; Zhang, Jian 收藏  |  浏览/下载：31/0  |  提交时间：2016/04/21 Al2O3/Y3Al5O12 single crystal  Directional solidification  Solidification structure  Interfaces   Theoretical studies of EPR parameters and defect structures for Ni2+ ions in corundum 期刊论文  OAI收割 Physica B-Condensed Matter, 2013, 卷号: 408, 页码: 169-174 W. Fang; Q. W. Wang; W. Y. Yang; W. C. Zheng 收藏  |  浏览/下载：28/0  |  提交时间：2013/12/24 Fourth-order perturbation formulae  Two spin-orbit coupling parameter  Defect structure  [NiO6](10-) cluster  paramagnetic resonance absorption  spin-hamiltonian parameters  trigonal  crystal-field  centers  pressure  nickel  al2o3  3d(8)   Preparation of crystal-controlled Y-TZP/Al2O3 nanocomposites 期刊论文  OAI收割 Materials Science-Poland, 2012, 卷号: 30, 期号: 4, 页码: 348-354 作者:  Fang Y(方媛);  Zhang YS(张永胜);  Hu LT(胡丽天);  Hu LT(胡丽天) 收藏  |  浏览/下载：44/0  |  提交时间：2013/12/04 ZrO2–Y2O3–Al2O3  hot-pressing  crystal-controlled nanocomposites   Thermal-structure analysis of supersonic dome based on three materials (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China Jiang Z.; Ai X.; Wei Q.; Liu B.; Jia H. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 To a supersonic missile  a seeker could enhance the aerodynamic ability due to decrease the resistance in flying. At the same time  the primary function of a seeker has been considered as the most important equipment for a missile  due to the importance for cueing of targets and tracking for the final approach. However  the dome of a seeker  which is made up of glass  has poor mechanical performance. Especially  in the higher altitude  for a dome  in which the aerothermal and pressure loads could destroy the structure easily  it is necessary to do the thermal-structure coupled analysis due to varied materials. In the paper  to take the spherical dome of a seeker as a example  the analysis has been completed according to the varied materials consist of MgF2  Al2O3 and ZnS. The temperature loads and the pressure loads derived from the results of fluent analysis has been forced on the surface of dome  which simulates the actual Mach 2.5 in flying. According to the results of coupled analysis  the SEQV stress of the dome radium 80mm based on three materials had reached to 31MPa  which shows that the strength is sufficient for Mach 2.5  and offered the warranty to design the attaching to missile for the dome. At the same time  the results required the flexible mounting for the dome due to the displacements results  which the crystal material couldn't accept. 2011 IEEE.   Optical absorption spectra and EPR g factor of divalent nickel doped magnesia crystal 期刊论文  OAI收割 Optik, 2011, 卷号: 122, 期号: 17, 页码: 1512-1514 W. L. Feng; X. M. Li; W. J. Yang; C. Y. Tao; Y. L. Yang 收藏  |  浏览/下载：19/0  |  提交时间：2012/04/13 Optical properties  Crystal- and ligand field  Electron paramagnetic  resonance  MgO  Ni(2+)  atomic screening constants  gyromagnetic factor  scf functions  parameters  resonance  pressure  centers  al2o3  oxide  ions   Theoretical investigations of the Jahn-Teller distortions for V(3+) and Cr(4+) in alpha-Al(2)O(3) 期刊论文  OAI收割 Computational and Theoretical Chemistry, 2011, 卷号: 965, 期号: 1, 页码: 47-52 Z. H. Zhang; S. Y. Wu; M. Q. Kuang 收藏  |  浏览/下载：50/0  |  提交时间：2012/04/13 Electron paramagnetic resonance  V(3+)  Cr(4+)  alpha-Al(2)O(3)  electron-paramagnetic resonance  atomic screening constants  c-3  symmetry sites  crystal-field  superposition model  optical spectra  scf  functions  d(8) ions  al2o3  corundum