Results 131 to 140 of about 912 (182)

Nanocrystallization of metallic glasses

Journal of Non-Crystalline Solids, 2001
The paper summarizes briefly the current status of research in the field of nanocrystallization of metallic glasses especially highlighting the influence of glass composition and conditions of devitrification process on size, morphology and composition of crystallization products. Conventional crystallization creates a nanocrystalline structure only in
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Nanocrystallization in Fe75Mo2.5Mn2.5Si6B14 amorphous alloy

Journal of Alloys and Compounds, 2014
Abstract Structure changes in Fe75Mo2.5Mn2.5Si6B14 amorphous alloy at heating within temperature range of 293–878 K have been studied by means of high-temperature X-ray diffraction method. Intensity curves and main structure parameters estimated from them are analyzed.
S. Mudry, Yu. Kulyk, S. Zhovneruk
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Bipolar conductivity in nanocrystallized TiO2

Applied Physics Letters, 2012
This study calculated the contribution of electrons and holes to TiO2 conductivity in Si/TiO2/Ni structures by conducting experiments on the injection of minority carriers from n- and p-type silicon. Results show that electrons and holes contribute to the conductivity of TiO2, enabling two-band conductivity.
D. R. Islamov, V. A. Gritsenko, C. H. Cheng, A. Chin   +3 more
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Nanocrystallization of amorphous Fe33Zr67 alloy

Nanostructured Materials, 1996
Abstract A nanocrystalline (NC) fcc FeZr 2 intermetallic compound was formed by completely crystallizing the melt-spun amorphous Fe 33 Zr 67 alloy ribbons. The nanocrystallization kinetics and microstructures of the crystallized products were characterized by means of differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission ...
N.X. Sun, K. Zhang, X.H. Zhang, X.D. Liu, K. Lu   +4 more
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Nanocrystallization of Fe87.5Zr6B5.5Al1 amorphous alloy

Journal of Materials Science Letters, 1997
No abstract available.
Al-Haj, M., Barry, J., Olofinjana, A.
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Nanocrystallization of Pd74Si18Au8 metallic glass

Intermetallics, 2002
Abstract The crystallization process of Pd 74 Si 18 Au 8 amorphous alloy has been investigated by transmission electron microscopy, small angle X-ray scattering and three-dimensional atom probe techniques. Although literature suggests that the alloy decomposes into two glassy phases prior to the crystallization, we found that the crystallization ...
K Kajiwara, M Ohnuma, D.H Ping, O Haruyama, K Hono   +4 more
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Nanocrystallization of Zr61Al7.5Cu17.5Ni10Si4 metallic glass

Intermetallics, 2009
Abstract The primary nanocrystallization behavior and microstructural evolution of the Zr 61 Al 7.5 Cu 17.5 Ni 10 Si 4 alloy during annealing were investigated by isothermal differential scanning calorimetry, X-ray diffractometry and transmission electron microscopy. During continuous heating of the 4Si and the base (contains no Si) amorphous alloys
J.S.C. Jang, S.F. Tsao, L.J. Chang, J.C. Huang, C.T. Liu   +4 more
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INDUCED NANOCRYSTALLIZATION OF DEXTROSE MONOHYDRATE

International Journal of Nanoscience, 2013
Modern ultrasound induction is very much useful in crystallization process. It uses piezoelectric transducers or quartz crystals to convert mechanical waves to electrical signals and vice versa. Growth of a crystal is environment dependent. The characteristics of grown crystals depend on impurities, temperature, preparation of the solution and ...
IRUDAYARAJ JOHNSON, B. KANICKAI RAJ, V. SIVAGAMI, NAGA PONDY SELVI   +3 more
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Nanocrystallization of amorphous CoSiBFeNb alloys

Nanostructured Materials, 1996
Abstract The effect of Fe and Nb contents on the crystallization behavior of CoSiBFeNb alloys was studied using Mossbauer spectroscopy, transmission electron microscopy and X-ray diffraction. It was found that the structure formed by primary crystallization in the (Co77Si13.5B9.5)88Fe7Nb5 alloy is similar to that of the famous Fe73.5Si1.35B9Cu1Nb3 ...
A. Serebryakov, V. Sedykh, V. Stelmukh, N. Novokhatskaya   +3 more
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Nanocrystallization of Diarylethene and Photochromic Properties

Crystal Growth & Design, 2010
We have succeeded, for the first time, in fabrication of diarylethene (DAE), 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)perfluorocyclopentene, nanocrystals using two nanocrystallization processes base...
Norio Tagawa, Akito Masuhara, Hitoshi Kasai, Hachiro Nakanishi, Hidetoshi Oikawa   +4 more
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