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Optical and structural properties of AlN ceramics irradiated with heavy ions

机译：用重离子照射ALN陶瓷的光学和结构性

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摘要

The paper presents the results of studying the effect of irradiation with 85 MeV Fe7+ ions on the optical and structural properties of nitride ceramics at an irradiation temperature of 300-1000 K. It has been established that a decrease in the intensity of absorption spectra is caused by appearance of defects, as well as an increase in impurity atoms, which lead to the substitution of AI and N atoms in the structure. The change in the average optical absorption reflects the balance between the annihilation of defects as a result of annealing at high temperatures and the processes of defect formation resulting from irradiation. An increase in the magnitude of absorption at high fluences indicates the predominance of defect formation processes as a result of the overlapping of ions and the resulting cascade defects over defects annealing. Moreover, at irradiation temperatures of 700 and 1000 K, a decrease in the density of dislocations and microdistortions is observed due to thermal annihilation of defects.
机译：本文介绍了在照射温度为300-1000K的氮化物陶瓷的光学和结构性上使用85meV Fe7 +离子的照射效果的结果。已经确定引起吸收光谱强度的降低通过外观缺陷，以及杂质原子的增加，这导致结构中的AI和N原子的取代。平均光学吸收的变化反映了由于在高温下退火的缺陷之间的抗缺陷之间的平衡和辐射产生的缺陷形成过程。高分流速的吸收幅度的增加表明，由于离子重叠和由此产生的级联缺陷对缺陷退火的结果的偏移形成过程的优势。此外，在700和1000k的照射温度下，由于缺陷的热湮灭，观察到脱位密度和微观感测量的降低。

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  • 来源
    《Optical Materials》 |2019年第5期|130-137|共8页
  • 作者

    Kozlovskiy A.; Kenzhina I; Alyamova Z. A.; Zdorovets M.;

  • 作者单位

    Inst Nucl Phys Republ Kazakhstan Astana Kazakhstan|Kazakh Russian Int Univ Aktobe Kazakhstan;

    Inst Nucl Phys Republ Kazakhstan Astana Kazakhstan|LN Gumilyov Eurasian Natl Univ Astana Kazakhstan;

    Kazakh Russian Int Univ Aktobe Kazakhstan;

    Inst Nucl Phys Republ Kazakhstan Astana Kazakhstan|LN Gumilyov Eurasian Natl Univ Astana Kazakhstan|Ural Fed Univ Ekaterinburg Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ceramic materials; Heavy ions; Optical density; Crystal surface; Radiation defects;

    机译：陶瓷材料;重离子;光密度;晶体表面;辐射缺陷;

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