您的位置: 专家智库 > >

国家自然科学基金(11004075)

作品数:4 被引量:2H指数:1
相关作者:李全军刘冰冰崔田姚明光邹勃更多>>
相关机构:吉林大学吉林医药学院更多>>
发文基金:国家自然科学基金国家重点基础研究发展计划更多>>
相关领域:理学一般工业技术更多>>

文献类型

  • 4篇期刊文章
  • 3篇会议论文

领域

  • 3篇理学
  • 2篇一般工业技术

主题

  • 3篇HIGH_P...
  • 2篇光谱
  • 2篇光谱研究
  • 2篇NANO
  • 2篇CEO
  • 2篇NANOMA...
  • 1篇第一性原理
  • 1篇电子性质
  • 1篇多孔
  • 1篇氧化铈
  • 1篇英文
  • 1篇硬质材料
  • 1篇锐钛矿
  • 1篇锐钛矿相
  • 1篇锐钛矿相TI...
  • 1篇纳米
  • 1篇纳米多孔
  • 1篇激光
  • 1篇激光制备
  • 1篇高压物理

机构

  • 4篇吉林大学
  • 1篇北京工业大学
  • 1篇吉林医药学院

作者

  • 3篇姚明光
  • 3篇李全军
  • 3篇刘冰冰
  • 2篇刘然
  • 1篇宋海英
  • 1篇刘波
  • 1篇祝颖
  • 1篇陈洪斌
  • 1篇刘嵩
  • 1篇刘德弟
  • 1篇王霖
  • 1篇刘世炳
  • 1篇邹勃
  • 1篇崔雯
  • 1篇崔田
  • 1篇徐丹
  • 1篇董祥明
  • 1篇孟娇

传媒

  • 2篇第十七届全国...
  • 1篇光散射学报
  • 1篇Chines...
  • 1篇吉林大学学报...
  • 1篇Chines...

年份

  • 1篇2016
  • 1篇2014
  • 3篇2013
  • 1篇2012
  • 1篇2011
4 条 记 录,以下是 1-7
排序方式:
飞秒激光制备黑硅的光谱研究
硅表面对光的高反射率,使其在太阳能电池、光电响应等方面的应用受到了很大的限制,为此,研究人员尝试了多种方法,其中,利用激光在硅表面进行微纳加工是一种高效的途径。本文用飞秒激光在空气中对单晶硅进行扫描处理,在硅表面制备出平...
孟娇宋海英刘嵩董祥明刘世炳
High pressure structural phase transitions of TiO_2 nanomaterials被引量:1
2016年
Recently, the high pressure study on the TiO_2 nanomaterials has attracted considerable attention due to the typical crystal structure and the fascinating properties of TiO_2 with nanoscale sizes. In this paper, we briefly review the recent progress in the high pressure phase transitions of TiO_2 nanomaterials. We discuss the size effects and morphology effects on the high pressure phase transitions of TiO_2 nanomaterials with different particle sizes, morphologies, and microstructures. Several typical pressure-induced structural phase transitions in TiO_2 nanomaterials are presented, including size-dependent phase transition selectivity in nanoparticles, morphology-tuned phase transition in nanowires, nanosheets,and nanoporous materials, and pressure-induced amorphization(PIA) and polyamorphism in ultrafine nanoparticles and TiO_2-B nanoribbons. Various TiO_2 nanostructural materials with high pressure structures are prepared successfully by high pressure treatment of the corresponding crystal nanomaterials, such as amorphous TiO_2 nanoribbons, α-PbO_2-type TiO_2 nanowires, nanosheets, and nanoporous materials. These studies suggest that the high pressure phase transitions of TiO_2 nanomaterials depend on the nanosize, morphology, interface energy, and microstructure. The diversity of high pressure behaviors of TiO_2 nanomaterials provides a new insight into the properties of nanomaterials, and paves a way for preparing new nanomaterials with novel high pressure structures and properties for various applications.
李全军刘冰冰
研究简报Nb_2N_3的力学和电子性质的第一性原理
2012年
采用基于密度泛函理论的第一性原理方法研究Nb2N3的晶体结构、力学、晶格动力学和电子性质.结果表明:Nb2N3常压下具有正交η-Ta2N3结构,其弹性常数满足波恩-黄昆判据,且晶格动力学稳定;Nb2N3具有较大的体弹性模量(304 GPa)和硬度(19.3 GPa),由于Nb 4d轨道与N 2p轨道杂化形成三维Nb-N共价键,因此Nb2N3为离子性较强的半导体材料.
祝颖徐丹李全军陈洪斌
关键词:硬质材料高压物理
High pressure induced novel phase transition in nano-confined C60 Crystals
The phase transformation of carbon materials under high pressure have attracted growing research interest due ...
刘冰冰姚明光王霖刘德弟崔雯Bertil Sundqvist
Study of high pressure structural stability of CeO_2 nanoparticles
2013年
In situ high pressure XRD diffraction and Raman spectroscopy have been performed on 12 nm CeO2 nanoparticles. Surprisingly, under quasihydrostatic conditions, 12 nm CeO2 nanoparticles maintain the fluorite- type structure in the whole pressure range (0-51 GPa) during the experiments, much more stable than the bulk counterpart (PT-31 GPa). In contrast, they experienced phase transition at pressure as low as 26 GPa under non- hydrostatic conditions (adopting CsC1 as pressure medium). Additionally, 32-36 nm CeO2 nanoparticles exhibit an onset pressure of phase transition at 35 GPa under quasihydrostatic conditions, and this onset pressure is much lower than our result. Further analysis shows both the experimental condition (i.e., quasihydrostatic or non-hydrostatic) and grain size effect have a significant impact on the high pressure behaviors of CeO2 nanomaterials.
刘波刘然李全军姚明光邹勃崔田刘冰冰刘景
CeO_2纳米八面体高压结构相变的Raman研究(英文)被引量:1
2014年
利用高压原位拉曼光谱技术研究了非静水条件对CeO2纳米八面体高压结构相变的重压影响。研究表明:在非静水条件下(无传压介质),当压力达到26 GPa时,CeO2纳米八面体发生由立方萤石型结构到正交α-PbCl2型结构的可逆结构相变,相变压力低于相应的体材料(30 GPa)。相反,在准静水压条件下,CeO2纳米八面体的相变压力为33 GPa,高于其体材料。研究表明,实验条件对CeO2纳米八面体结构稳定性具有重要影响。
刘波刘然李全军姚明光邹勃崔田刘冰冰
纳米多孔锐钛矿相TiO2的高压Raman光谱研究
<正>二氧化钛作为一种重要的多功能材料,在高压下具有丰富的结构相变,其高压研究一直备受关注。Raman光谱与高压技术的结合使得人们认识物质结构的手段和方法进一步丰富,对材料的高压结构相变研究起到了重要的促进作用。Rama...
李全军刘然程本源姚明光刘冰冰
文献传递
共1页<1>
聚类工具0