کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483303 1510534 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic studies of intermetallic compounds Al3R (Al11R3) both in the solid and liquid states
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Magnetic studies of intermetallic compounds Al3R (Al11R3) both in the solid and liquid states
چکیده انگلیسی

The magnetic susceptibility of Al3R and Al11R3 (R = Ce, Pr, Sm, Gd, Dy, Ho, Yb) compounds is investigated over wide temperature (300–1900 K) and field (0.2–1.2 T) ranges. It is found that microinclusions of Al2R can exist in the samples. They are not detectable in ordinary X-ray diffraction but give a significant contribution to the magnetic properties. The average effective magnetic moment per rare-earth atom changes through the rare-earth metals line reaching its maximum for holmium but rather lower than for the pure rare-earth metals. It means that rare-earth elements form covalent bonds with aluminum. These bonds remain in the liquid phase and begin to break down after melting point of Al2R only. The transition into a true solution state of the melt is somewhere above 1900 K.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 32–40, 15 October 2007, Pages 3094–3098
نویسندگان
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