scholarly journals Surface Characterization of Oleic Acid Coated Marble Dust

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Ercan POLAT ◽  
Taki GÜLER ◽  
Oktay CELEP ◽  
Selçuk AKTÜRK
Keyword(s):  
Surface Modification ◽  
Oleic Acid ◽  
Surface Characterization ◽  
Processing Plant ◽  
Natural Form ◽  
Acid Type ◽  
Fine Tailings ◽  
Marble Dust ◽  
Polymer Industry

Calcite, being the most abundant mineral on earth crust, have wide application areas especially in polymer industry as a micronized functional filler material. It is hydrophilic in natural form, and made hydrophobic after surface modification to meet the requirements of polymer industry: the incompatibility between high energetic hydrophilic surface of calcite and the low-energy surface of hydrophobic polymers is a major problem. Treatment of micronized calcite with fatty acids is one of the most common method to obtain modified mineral surface. In present study, oleic acid (OA), fatty acid type surface modifying agent was used for the surface characterization of OA coated marble dust. Fine tailings of slab cutting unit of a marble processing plant was supplied. The sample was subjected to wet classification process to obtain micronized calcite fraction for experimental works. Surface modification of finely sized fraction was performed in a laboratory type flotation unit. Thermogravimetric analysis (TGA) and Transmission Electron Microscopy (TEM) were used as characterization techniques.

scholarly journals SURFACE CHARACTERIZATION OF TITANIUM ALLOYS FOR NITROGEN ION IMPLANTATION

2017 ◽  
Vol 9 ◽  
pp. 39
Author(s):  
Petr Vertat ◽  
Jan Drahokoupil ◽  
Petr Vlcak
Keyword(s):  
Surface Modification ◽  
Ion Implantation ◽  
Surface Characterization ◽  
X Ray Diffraction ◽  
Nitrogen Ion Implantation ◽  
X Ray ◽  
Commercially Pure ◽  
Before And After ◽  
Nitrogen Ion

Ion implantation is one of the modern methods of the surface modification of various materials. Industrially used Ti–6Al–4V titanium alloy and commercially pure Ti grade 2 were characterized using the X–ray diffraction methods. Texture of the material and dependence of the microstructural properties on the method of the surface modification were examined in order to determine suitable conditions for application of the process in the industry. The structure of Ti–6Al–4V alloy before and after the nitrogen ion implantation process is discussed and observed surface hardening is explained.

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

Effect of Oleic Acid Surface Modification on Dispersibility of TiO2 Nanoparticles in Transformer Oils

2013 ◽  
Vol 28 (6) ◽  
pp. 594-598 ◽  
Author(s):  
Yu-Zhen LÜ ◽  
Sheng-Nan ZHANG ◽  
Yue-Fan DU ◽  
Mu-Tian CHEN ◽  
Cheng-Rong LI
Keyword(s):  
Surface Modification ◽  
Oleic Acid ◽  
Tio2 Nanoparticles ◽  
Transformer Oils
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