Research on the methods to determine metallic aluminum content in aluminum nanoparticles

2010 ◽  
Vol 120 (2-3) ◽  
pp. 670-675 ◽  
Author(s):  
Liang Chen ◽  
Wulin Song ◽  
Jie Lv ◽  
Xia Chen ◽  
Changsheng Xie
2012 ◽  
Vol 67 (1) ◽  
pp. 177-179 ◽  
Author(s):  
Yuhua Zhou ◽  
Wulin Song ◽  
Xiaochuan Zeng ◽  
Changsheng Xie

2009 ◽  
Vol 2009 (14) ◽  
pp. 2050-2053 ◽  
Author(s):  
Chinnathambi Mahendiran ◽  
Raman Ganesan ◽  
Aharon Gedanken

Author(s):  
Ziya Dagalan ◽  
Sepideh Behboudikhiavi ◽  
Muhammet Turgut ◽  
Melike Sevim ◽  
Ahmet Emre Kasapoğlu ◽  
...  

We report herein an innovative design and synthesis of a novel multifunctional nanocatalyst for the transfer hydrogenation (TH) of nitroarenes and olefines using water as hydrogen source and solvent. The...


2018 ◽  
Vol 769 ◽  
pp. 90-95
Author(s):  
Andrei V. Mostovshchikov ◽  
Andrey V. Korshunov ◽  
Alexander P. Ilyin ◽  
Ivan Kalinich ◽  
Pavel Yu. Chumerin

The influence of microwave irradiation (9.4 GHz) and electron beam (250 keV) on metal aluminum content in aluminum nanopowder is studied. It is established that after irradiation the content of metal aluminum in Al nanopowder increases. The most likely explanation is the reduction of aluminum ions Al3+ in the oxide shell at the surface of aluminum nanoparticles to produce metal.


2013 ◽  
Vol 23 ◽  
pp. 8-12 ◽  
Author(s):  
Paul A. Jelliss ◽  
Steven W. Buckner ◽  
Stephen W. Chung ◽  
Ashish Patel ◽  
Elena A. Guliants ◽  
...  

Alloy Digest ◽  
1990 ◽  
Vol 39 (11) ◽  

Abstract NICKEL VAC X-751 is a modification of NICKEL VAC X-750 carrying higher aluminum content (0.90-1.50 vs 0.4-1.0%). This raises the maximum service temperature 100 F(55 C) to 1600 F(871 C). NICKEL VAC X-751 has a simplified and shortened heat treating cycle relative to NICKEL VAC X-750. It is produced by vacuum induction melting followed by vacuum arc or electroslag remelting. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-387. Producer or source: Teledyne Allvac.


Metals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1478 ◽  
Author(s):  
Luděk Stratil ◽  
Vít Horník ◽  
Petr Dymáček ◽  
Pavla Roupcová ◽  
Jiří Svoboda

The aim of the paper is to evaluate the effect of aluminum content on the oxidation resistance of new-generation of oxide dispersion strengthened (ODS) alloy at 1200 °C. Three grades of the alloy of chemical composition Fe-15Cr-xAl-4Y2O3 with different Al contents x = 0.3 wt.%, 2.0 wt.% and 5.5 wt.% are prepared by mechanical alloying. The alloys are consolidated by high temperature rolling followed by heat treatment. To study the oxidation resistance the samples are isothermally aged in the air for 1 h, 4 h, 16 h and 64 h at 1200 °C. The oxidation kinetics, composition and formation mechanism of the oxide layers are analyzed. The weight gain of prepared steels is estimated. The kinetics of oxidation is studied on metallographic cross-sections of the exposed samples by scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) analysis. The oxides on the surfaces are identified by X‑ray diffraction (XRD) analysis. The Al content significantly enhances the oxidation resistance of the alloy. For a sufficiently high Al content in the alloy a compact oxide layer of α‑Al2O3 on the surface is formed, which significantly suppresses further oxidation process.


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