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Min Zhu, Xiaohan Lu, Haiyan Li, Hongjun Cao and Fei Wu
In the field of aerospace, weapons and other complex assembly, there are more than 50 factors affecting the performance degradation of joint structures, among which the friction coefficient is the main factor. Nickel steel is widely used in large complex...
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Vadym Kovalenko,Valerii Kotok
Pág. 6 - 12
Nickel hydroxide is widely used as the active material in chemical power sources. The formation mechanism of nickel hydroxide includes two fast phases of the formation of an initial amorphous particle and slow aging (crystallization) stage. Characteristi...
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Eduardo Ulisses Xavier Peres, Alexandre Perez Umpierre, Paulo Anselmo Ziani Suarez
Pág. 419 - 424
The use of castor oil (Ricinus communis) has been pointed out as an interesting alternative to produce several polymers obtained from step-growth polymerization and are suitable to be used as resins and coatings. The ricinoleate metal complexes Ni[...
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Zubairu Darma Umar, Nor Azwady Abd, Syaizwan Zahmir Zulkifli, Muskhazli Mustafa
Pág. 14 - 27
Polycyclic aromatic hydrocarbons (PAHs) comprised of many dangerous organic pollutants which affect human cell. The choice of phenanthrene and pyrene as model substrates was based on their classification among the most hazardous PAHs group by the US EPA ...
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Józef Blachnio, Marek Chalimoniuk, Artur Kulaszka, Henryk Borowczyk and Dariusz Zasada
X-ray computed tomography is more often applied in non-destructive testing the quality of construction elements significantly crucial for reliability and safety of device elements, machines and complex industrial systems. This article describes the compu...
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Jan Valícek, Marta Harnicárová, Jan Rehor, Milena Ku?nerová, Jaroslava Fulemová, Miroslav Gombár, Ludmila Kucerová, Jan Filipenský and Jan Hnátík
The high-velocity oxy-fuel spraying process was used to investigate and improve the surface properties of a workpiece. The research was focused on the spherical surface of a workpiece made of high-strength steel, a ball and socket assembly. After sprayin...
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Ivan Bunaziv, Vigdis Olden and Odd M. Akselsen
In the present work, the metallurgical changes in the welding of clad pipelines are studied. Clad pipes consist of a complex multi-material system, with (i) the clad being stainless steel or a nickel-based superalloy, (ii) the pipe being API X60 or X65 h...
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Yong X. Gan, Anan S. Hamdan, Jeremy B. Gan and Mingheng Li
In this work, a Bi-Te-Ni-Fe complex coating material was obtained on magnesium oxide substrate by a single step ambient pressure chemical vapor deposition (CVD). Nickel acetate, bismuth acetate, iron (III) nitrate, and tellurium (IV) chloride dissolved i...
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Aleksey V. Zhuzhgov, Lyubov A. Isupova, Evgeny A. Suprun and Aleksandr S. Gorkusha
This study revealed an increased reactivity of centrifugally thermoactivated products of gibbsite toward aqueous solutions of nickel nitrate at room temperature as well as under hydrothermal conditions. X-ray, thermal, microscopy, adsorption and chemical...
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Quang-Trung Nguyen, Truong-Giang Le, Philippe Bergonzo and Quang-Thuan Tran
This work describes a straightforward method using one-step preparation of graphene/nickel nanocomposite materials from low-cost materials including graphene oxide and nickel metal. Repetitive CVs lead to the simultaneous deposition of metallic nickel na...
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Muhammad Naeem Iqbal, Asfa Ashraf
Pág. 14 - 15
EDITORIALEnvironmental pollution arising from heavy metals and minerals in the wastewater is the most serious problem. Due to extensive anthropogenic activities such as industrial operations particularly mining, agricultural processes and disposal of ind...
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