Structural disordering process of an amorphous alloy driven by the elastostatic compression at room temperature

Abstract Infrared absorption spectra of chalcogenide alloys of the GST system with the compositions Ge14Sb29Te57 and Ge15Sb15Te70 in the amorphous and crystalline state were measured and analyzed in the range of 20 – 400 cm– 1 (0.6 – 12 THz) at room temperature. Absorption at these frequencies is due to the manifestation of correlated torsional vibrations of structural units of the amorphous alloy and phonon modes of the crystal. The performed assignment of absorption bands and the revealed differences in the IR spectra make it possible to more confidently represent the possible molecular mechanism of reversible amorphous-crystalline transformations in the studied phase-changing materials

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Effect of Corrosive Medium on the Corrosion Resistance of FeCrMoCB Amorphous Alloy Coating

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.291-294.65 ◽

2011 ◽

Vol 291-294 ◽

pp. 65-71 ◽

Cited By ~ 1

Author(s):

Qing Jun Chen ◽

Lin Li Hu ◽

Xian Liang Zhou ◽

Xiao Zhen Hua ◽

Ying Jun Yang

Keyword(s):

Corrosion Resistance ◽

Amorphous Alloy ◽

Amorphous Alloys ◽

Room Temperature ◽

Electrochemical Impedance ◽

Equivalent Circuit Model ◽

Alloy Coating ◽

Potentiodynamic Polarization Curves ◽

Naoh Solution ◽

Oxygen Fuel

The purpose of this study is to investigate the electrochemical properties of Fe44Cr16Mo16C18B6amorphous alloy coating fabricated using high velocity oxygen fuel (HVOF) technology in 2.0M HCl and NaOH solution at room temperature(25°C). Based on the potentiodynamic polarization curves and Electrochemical Impedance Spectroscopy(EIS) testing results of coating in aqueous solutions of HCl and NaOH, the corrosion resistance of Fe44Cr16Mo16C18B6amorphous alloy coating in HCl solution was superior to that in NaOH solution. The icorrwas 1.487×10-5A·cm-2in HClsolution and 1.107×10-4A·cm-2in NaOH solution, while the Rtreach to 5.789×104Ω·cm2and 9780Ω·cm2, respectively. On the other hand, these corrosion phenomenon could be better interpreted by R(Q(R(RQW)))(RL) and R(RL)(Q(R(CW))) equivalent circuit model, which were different from that of other Fe-based amorphous alloys in HCl and NaOH solution, respectively.

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The preparation of well-dispersed Ni–B amorphous alloy nanoparticles at room temperature

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2007.07.074 ◽

2008 ◽

Vol 455 (1-2) ◽

pp. 510-515 ◽

Cited By ~ 13

Author(s):

Ming Wen ◽

Lu-Jiang Li ◽

Qiuyan Liu ◽

Hai-Quan Qi ◽

Tao Zhang

Keyword(s):

Amorphous Alloy ◽

Room Temperature ◽

Alloy Nanoparticles

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Study of local crystallization induced in FeSiNbZrB amorphous alloy by swift heavy ion (SHI) irradiation at room temperature

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ◽

10.1016/j.nimb.2013.02.045 ◽

2013 ◽

Vol 307 ◽

pp. 486-490 ◽

Cited By ~ 6

Author(s):

Jianrong Sun ◽

Zhiguang Wang ◽

Yuyu Wang ◽

Hailong Chang ◽

Peng Song ◽

...

Keyword(s):

Amorphous Alloy ◽

Room Temperature ◽

Heavy Ion ◽

Swift Heavy Ion ◽

Shi Irradiation

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Complex Analysis of Electrical Resistivity Dynamics of Co82Fe4Cr3Si8B3 Amorphous Alloy under Heat Treatment

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.811.72 ◽

2013 ◽

Vol 811 ◽

pp. 72-76 ◽

Cited By ~ 2

Author(s):

Aleksandr Kotvitckii ◽

Galina Kraynova ◽

Anatoly Frolov ◽

Vitaly Ivanov

Keyword(s):

Heat Treatment ◽

Electrical Resistivity ◽

High Temperature ◽

Amorphous Alloy ◽

Room Temperature ◽

Complex Analysis ◽

Room Temperature Resistivity ◽

Resistivity Minimum ◽

Temperature Resistivity ◽

Amorphous Character

In this paper the detailed analysis of thermal behavior of electrical resistivity of Co82Fe4Cr3Si8B3 amorphous alloy is made. It has been shown that within temperature range 230С <T< 5600С the structure of the alloy keeps its amorphous character and only a slight changes occurred. A high temperature (above room temperature) resistivity minimum was found at 160°C. This feature was related with Curie temperature of the alloy. It has been shown that change of electrical resistivity behavior at 350°C can be explained by reaching the Debye temperature of the alloy.

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