ON BACKGROUND CONTENT OF SOME MICROELEMENTS (V, Ni, Ti, Sn, Sc, Sr, Zr, Y, Yb) IN SOILS OF UDMURTIA
نویسندگان
چکیده
منابع مشابه
the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولMicrostructural evolution of body-centered cubic structure related Ti–Zr–Ni phases in non-stoichiometric Zr-based Zr–Ti–Mn–V–Ni hydride electrode alloys
Non-stoichiometric Zr-based alloys were prepared, and the corresponding electrochemical properties were characterized as hydride electrode alloys. The microstructure and chemical composition of non-stoichiometric Zr–Ti–Mn–V–Ni hydride electrode alloys were systematically investigated by x-ray Rietveld refinement, transmission electron microscopy (TEM), and energy dispersive spectroscopy under T...
متن کاملFormation of Ti-Zr-Cu-Ni bulk metallic glasses
Formation of bulk metallic glass in quaternary Ti-Zr-Cu-Ni alloys by relatively slow cooling from the melt is reported. Thick strips of metallic glass were obtained by the method of metal mold casting. The glass forming ability of the quaternary alloys exceeds that of binary or ternary alloys containing the same elements due to the complexity of the system. The best glass forming alloys such as...
متن کاملLocal structure of equilibrium and supercooled Ti-Zr-Ni liquids
G. W. Lee,1,2 A. K. Gangopadhyay,1 R. W. Hyers,3 T. J. Rathz,4 J. R. Rogers,5 D. S. Robinson,6 A. I. Goldman,6 and K. F. Kelton1 1Department of Physics, Washington University, St. Louis, Missouri 63130, USA 2Korea Research Institute of Standards and Science, Daejon, Choongnam 305-340, Republic of Korea 3University of Massachusetts, Amherst, Massachusetts 01003, USA 4University of Alabama, Hunts...
متن کاملEffects of Zr on the Microstructure and Mechanical Properties of Al-Sc- Yb Alloys
Cast, coarse-grained Al-Sc alloys are interesting candidates for high temperature, creepresistant applications due to the formation of a high number density of nanometer sized Al3Sc precipitates [1]. Upon addition of Yb to Al-Sc alloys, Yb replaces the Sc forming Al3(Sc1-xYbx) precipitates (L12 structure) [2]. The resulting alloys have higher creep resistance due to the larger lattice parameter...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of Udmurt University. Series Biology. Earth Sciences
سال: 2020
ISSN: 2413-2489,2412-9518
DOI: 10.35634/2412-9518-2020-30-1-43-52