Improved radiation damage tolerance of titanium nitride ceramics by introduction of vacancy defects
Improved radiation damage tolerance of titanium nitride ceramics by introduction of vacancy defects
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通过引入空位缺陷提高氮化钛陶瓷的辐射损伤耐受性
DOI：
10.1016/j.jeurceramsoc.2013.10.012
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发表时间：
2014-03
影响因子：
5.7
通讯作者：
Long, Xing-Gui
中科院分区：
文献类型：
--
作者：
Xue, Jia-Xiang;Zhang, Guo-Jun;Guo, Li-Ping;Zhang, Hai-Bin;Wang, Xin-Gang;Zou, Ji;Peng, Shu-Ming;Long, Xing-Gui
用100 keV氩离子束在600℃下辐照TiN和tin0.7，靶剂量为3 × 1017ions cm - 2。采用SRIM估算、GIXRD和荧光分析等方法评价了预先存在的空位缺陷对辐射耐受性的影响。辐照后的TiN晶格参数增加，主要是由于辐照后的TiN中存在间隙原子和空位。相反，辐照后的TiN0.7晶格参数减小，说明TiN0.7中的氮原子空位充当了辐照产生位移原子的汇，限制了间隙原子的存在。辐照后的TiN荧光光谱峰强度高于辐照后的TiN0.7。这是由于在辐照TiN中存在由Frenkel缺陷形成的色心。结果表明，在材料中引入空位缺陷可以实现辐照损伤的自愈。
TiN and TiN0.7were irradiated using a 100 keV Ar-ion beam at 600 °C to target doses of 3 × 1017ions cm−2. SRIM estimation, GIXRD and fluorescence analysis have been performed to evaluate the effect of pre-existing vacancy defect on the radiation tolerance. The lattice parameter of TiN increased after irradiation due to interstitial atoms and vacancies in as-irradiated TiN. In contrary, the lattice parameter decreased for as-irradiated TiN0.7, which indicates that the nitrogen atom vacancies in TiN0.7acted as sinks for displacement atoms generated by irradiation to limit interstitial atoms existing. The intensity of peaks in fluorescence spectrum of as-irradiated TiN was higher than that of as-irradiated TiN0.7. That attributed to the presence of color centers formed by Frenkel defects in as-irradiated TiN. All of the results indicate that introducing vacancy defect in materials would offer capability to realize self-heal of irradiation damage.
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DOI：
--
发表时间：
1996-12
期刊：
--
影响因子：
--
作者：
H. Pierson
通讯作者：
H. Pierson
影响因子：
3.1
作者：
R. Konings;K. Bakker;J. Boshoven;H. Hein;M. Huntelaar;R. V. D. Laan
通讯作者：
R. Konings;K. Bakker;J. Boshoven;H. Hein;M. Huntelaar;R. V. D. Laan
影响因子：
3.1
作者：
M. Streit;F. Ingold;M. Pouchon;L. Gauckler;J. Ottaviani
通讯作者：
M. Streit;F. Ingold;M. Pouchon;L. Gauckler;J. Ottaviani
Cu/W多层纳米复合材料的辐射耐受性
影响因子：
3.1
作者：
Gao, Yuan;Yang, Tengfei;Zhang, Yanwen
通讯作者：
Zhang, Yanwen
影响因子：
3.1
作者：
Marion Burghartz;G. Ledergerber;H. Hein;R. V. D. Laan;R. Konings
通讯作者：
Marion Burghartz;G. Ledergerber;H. Hein;R. V. D. Laan;R. Konings