Emerald期刊
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作者:Nivin M. Ahmed , Walaa M. Abd El-Gawad ...
来源:[J].Pigment & Resin Technology(IF 0.616), 2014, Vol.43 (4), pp.201-211Emerald
摘要:Purpose - The purpose of this work is to prepare new core-shell pigments based on silca fume waste as core and ferrite pigments in the shell. Silica fume is a byproduct of the smelting process in the ferrosilicon industry. The reduction of high-purity quartz to silicon at te...
作者:Nivin M. Ahmed , Walaa M. Abd El-Gawad ...
来源:[J].Pigment & Resin Technology(IF 0.616), 2015, Vol.44 (5), pp.276-291Emerald
摘要:Purpose – The purpose of this paper is to present the preparation of core-shell ferrites/kaolin pigments and comparing their efficiency in protecting metal substrates to original ferrites which were also prepared. Core-shell structured particles are recently gaining lots of ...
作者:Nivin M. Ahmed , Walaa M. Abd El-Gawad ...
来源:[J].Pigment & Resin Technology(IF 0.616), 2017, Vol.46 (3), pp.181-193Emerald
摘要:This study aims to synthesize a series of new anticorrosive pigments using a new technique called “core-shell”. This technique is based on depositing thin surface layer of expensive, efficient anticorrosive pigment on a cheap extender. This extender forms the bulk of the new...
作者:Nivin M. Ahmed , Mohamed M. Selim
来源:[J].Anti-Corrosion Methods and Materials(IF 0.386), 2010, Vol.57 (3)Emerald
摘要:Purpose - The purpose of this paper is to investigate the anticorrosive effects of a new pigment based on bulk of talc covered with a surface layer of titanium dioxide. Design/methodology/approach - The new pigments were characterized using different analytical and spectro-photom...
作者:Nivin M. Ahmed , Mohamed M. Selim
来源:[J].Pigment & Resin Technology(IF 0.616), 2010, Vol.39 (1)Emerald
摘要:Purpose - The purpose of this paper is to introduce a new method of pigment preparation, which is economic and highly efficient in corrosion protection properties, known as the core-shell method. According to this method, a cheap core (an extender) is covered with only a surface ...
作者:Nivin M. Ahmed , Mohamed M. Selim
来源:[J].Pigment & Resin Technology(IF 0.616), 2010, Vol.39 (2)Emerald
摘要:Purpose - The purpose of this paper is to determine a new easy route to obtain high performance and economic anticorrosive hybrid pigments based on kaolin and ferrite. The new route is based on depositing a surface layer of an expensive efficient anticorrosive pigment (ferrite) o...
作者:Nivin M. Ahmed , Mohamed M. Selim
来源:[J].Pigment & Resin Technology(IF 0.616), 2011, Vol.40 (1)Emerald
摘要:Purpose - Kaolin is a soft, white mineral mainly composed of coarse- to fine-grained, plate-like aluminum silicate particles. As kaolin assists with desired rheological properties that help maintain proper dispersion and provide bulk to the product, it is used as an important ext...
作者:Nivin M. Ahmed , Hassan S. Emira , Mohamed M. Selim
来源:[J].Pigment & Resin Technology(IF 0.616), 2011, Vol.40 (2)Emerald
摘要:Purpose - Organic coatings remain the most widely used way of protecting steel structures from corrosion. Traditional anticorrosive paints contain lead or hexavalent chromium compounds as active pigments. The use of these classical chromates is nowadays restricted by increasing e...
作者:Nivin M. Ahmed
来源:[J].Pigment & Resin Technology(IF 0.616), 2013, Vol.42 (1), pp.3-14Emerald
摘要:Purpose - Kaolin is a soft white mineral which has a large array of uses. It is most commonly referred to as "China clay". Sources of this mineral can be found all over the world, its uses are multiple and diverse. It is a mineral belonging to the group of alumino-silicates with ...
作者:Nivin M. Ahmed , Hassan S. Emira , Hesham M. Tawfik
来源:[J].Pigment & Resin Technology(IF 0.616), 2013, Vol.42 (3), pp.186-194Emerald
摘要:Purpose - Ion-exchange clays containing sodium such as bentonite and montmorillonite have the ability to exchange their cations. Few studies conducted with this type of ion-exchange pigments are not conclusive about their anticorrosive efficiency. The present research aims to add...

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