کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1516305 1511545 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The crystallographic stability and anisotropic compressibility of C54-type TiSi2 under high pressure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
The crystallographic stability and anisotropic compressibility of C54-type TiSi2 under high pressure
چکیده انگلیسی
In situ synchrotron X-ray powder diffraction experiment on TiSi2 has been performed using a diamond anvil cell at ambient temperature. The present experimental results showed that the structure of C54-type TiSi2 is stable in the experimental pressure range up to around 52 GPa. The compressibility of C54-type TiSi2 under high pressure presents anisotropic behavior. The compressibility along the a-, b- and c-axes has an approximate ratio of 6:5:4. And the anisotropic compressibility of the studied crystal is discussed in terms of the crystallography stacking. The c/a and b/a axial ratios both increase as the pressure increases. With pressure increasing, the c/a shows a tendency of approaching the ideal value, but the b/a deviates from the ideal value. The pressure-volume data of C54-type TiSi2 were fitted to a Birch-Murnaghan equation of state, which yielded a bulk modulus of B0=155 (2) GPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 74, Issue 9, September 2013, Pages 1291-1294
نویسندگان
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