| Автор | Renhui Wang |
| Автор | Xiangxiu Yang |
| Автор | H Takahashi |
| Автор | S Ohnuki |
| Дата выпуска | 1995-03-06 |
| dc.description | The irradiation effect of the Al<sub>62</sub>Cu<sub>25.5</sub>Fe<sub>12.5</sub> icosahedral quasicrystal (IQC) induced by 120 keV Ar ions and 1 MeV electrons has been studied in situ using high-voltage electron microscope-ion accelerator dual-irradiation facilities. The effect is dose and temperature dependent and we can define three critical temperatures T<sub>c</sub>, T<sub>d</sub> and T<sub>p</sub>. When irradiated at T<T<sub>c</sub> the IQC is transformed into a crystalline microtwin oriented according to icosahedral symmetry. When T>T<sub>c</sub>, the IQC remains an IQC but with a higher (when T>T<sub>d</sub>) or lower (when T<T<sub>d</sub>) degree of perfection. The planar defects originally existing in the Al<sub>62</sub>Cu<sub>25.5</sub>Fe<sub>12.5</sub> IQC foils are stable when T>T<sub>p</sub> but disappear when T<T<sub>p</sub>. For the Al<sub>62</sub>Cu<sub>25.5</sub>Fe<sub>12.5</sub> IQC, we found that T<sub>c</sub> approximately=400 K, T<sub>d</sub> approximately=450 K (for 1 MeV electrons) or 550 K (for 120 keV Ar ions) and T<sub>p</sub> approximately=600 K. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Phase transformation induced by irradiating an Al<sub>62</sub>Cu<sub>25.5</sub>Fe<sub>12.5</sub> icosahedral quasicrystal |
| Тип | paper |
| DOI | 10.1088/0953-8984/7/10/017 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 7 |
| Первая страница | 2105 |
| Последняя страница | 2114 |
| Аффилиация | Renhui Wang; Dept. of Phys., Wuhan Univ., China |
| Аффилиация | Xiangxiu Yang; Dept. of Phys., Wuhan Univ., China |
| Аффилиация | H Takahashi; Dept. of Phys., Wuhan Univ., China |
| Аффилиация | S Ohnuki; Dept. of Phys., Wuhan Univ., China |
| Выпуск | 10 |
