scholarly journals Piper Nigrum Extract as an Environmentally-Safe Inhibitor for the Prevention of Mild Steel in 1.5 M Nitric Acid Medium

2021 ◽  
Vol 13 (1) ◽  
pp. 237-242
Author(s):  
N. Balamurugapandian
Keyword(s):  
Electron Microscope ◽  
Nitric Acid ◽  
Scanning Electron Microscope ◽  
Mild Steel ◽  
Acid Medium ◽  
Inhibition Efficiency ◽  
Black Pepper ◽  
Piper Nigrum ◽  
Nitric Acid Medium ◽  
Scanning Electron

Piper nigrum has extensively explored for its biological properties and its bioactive phyto-compounds. The corrosion prevention of mild steel by Piper nigrum extract (black pepper) using 1.5 M nitric acid medium was examined by the weight-loss method, scanning electron microscope (SEM) examination. The consequences of the study reveal that the dissimilar concentrations of extract prevent mild steel corrosion in acidic medium. The Inhibition efficiency of the extract is found to vary with concentration, temperature, and time of immersion. The inhibition efficiency of the extract was directly proportional to the concentration but inversely proportional to the temperature. Scanning electron microscope experiments exhibit the adsorption of the inhibitory properties of black pepper extract on the surface of the mild steel and show the evidence for the protection of Mild steel by the eco-friendly inhibitor. FTIR values also show evidence for the inhibition of Mild Steel.

scholarly journals A Comparative Study on the Corrosion Inhibition of Mild Steel and Aluminium by Synthesized Inhibitors in Organic Acidic Medium

2020 ◽  
pp. 41-51
Author(s):  
Lalita Saini ◽  
R. K. Upadhyay
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Acidic Medium ◽  
Trichloroacetic Acid ◽  
Inhibition Efficiency ◽  
Corrosion Inhibition Efficiency ◽  
Scanning Electron Microscope Method ◽  
Scanning Electron

Mass loss and Scanning Electron Microscope method (SEM) have been used to study the corrosion inhibition efficiency on mild steel and aluminium using synthesized inhibitors i.e. N-Benzylidene aniline (CI1) and N-Benzylidene 4-methylaniline (CI2) in Trichloroacetic acid (TCAA). Study reveals that both mild steel and aluminium are prone to corrosion in organic acid like TCAA. Out of these two metals, aluminium is more vigorously corroded by the TCAA in comparison to mild steel in same conditions and synthesized inhibitors CI1 and CI2 are almost same effective for mild steel and aluminium.

scholarly journals Anti-Corrosive Behavior of the Seed Extract of Amomum sabulatum

2021 ◽  
Vol 309 ◽  
pp. 01026
Author(s):  
Neha Daksh ◽  
Akhil Saxena ◽  
Jayahari Lade ◽  
Nakul Gupta
Keyword(s):  
Weight Loss ◽  
Electron Microscope ◽  
Corrosion Rate ◽  
Scanning Electron Microscope ◽  
Mild Steel ◽  
Plant Extract ◽  
Inhibition Efficiency ◽  
Protective Layer ◽  
Seed Extract ◽  
Scanning Electron

An aqueous extract of Amomum sabulatum seeds was evaluated for anticorrosive effects on mild steel in the presence of HCl. Weight loss measurements were taken to determine the corrosion rate and inhibition efficiency at various concentrations. With the increasing concentrations of plant extract, the results showed an improvement in inhibition efficiency and a decrease in corrosion rate. In the presence of 1500 ppm concentration of plant extract, it has an inhibition efficiency of 82.08 % at 303 K. The scanning electron microscope was used to examine the surface, which proves that while the extract was there, a protective layer formed on the metal surface.

Integrity of 5052 Al-mild steel dissimilar welds fabricated using MIG-brazing and cold metal transfer in nitric acid medium

2019 ◽  
Vol 268 ◽  
pp. 97-106 ◽  
Author(s):  
Sravanthi S.S. ◽  
Swati Ghosh Acharyya ◽  
Phani Prabhakar K.V. ◽  
Padmanabham G.
Keyword(s):  
Nitric Acid ◽  
Mild Steel ◽  
Acid Medium ◽  
Metal Transfer ◽  
Nitric Acid Medium ◽  
Cold Metal Transfer ◽  
Dissimilar Welds ◽  
Cold Metal

scholarly journals Corrosion Inhibition of Mild Steel in Citric Acid by Aqueous Extract ofPiper NigrumL.

2012 ◽  
Vol 9 (1) ◽  
pp. 75-78 ◽  
Author(s):  
P. Matheswaran ◽  
A. K. Ramasamy
Keyword(s):  
Citric Acid ◽  
Mild Steel ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Aqueous Extract ◽  
Inhibition Efficiency ◽  
Piper Nigrum ◽  
Time Interval ◽  
Steel Material ◽  
Weight Loss Method

The inhibition efficiency (IE) of an aqueous extract ofPiper NigrumL. in controlling corrosion of mild steel at pH 12 has been evaluated by weight loss method in the absence and presence of inhibitor in citric acid medium at different concentration. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with the different concentration at two hour time interval at room temperature. Also, it was found that the corrosion inhibition behaviour ofPiper NigrumL. is greater in 2 N Citric acid than 1 N Citric acid medium. SoPiper NigrumL. can be used has a good inhibitor for preventing mild steel material which is used in many construction purpose.

The Influence of Biopolymer Coated Fertilizer on the Agrochemical Parameters of the Soil

2020 ◽  
Vol 869 ◽  
pp. 315-320
Author(s):  
Ibragim M. Bamatov ◽  
Evgeniy V. Rumyantsev ◽  
Magomed M. Arsanov
Keyword(s):  
Electron Microscope ◽  
Nitric Acid ◽  
Scanning Electron Microscope ◽  
Polyvinyl Alcohol ◽  
Biodegradable Polymer ◽  
Core Material ◽  
X Ray ◽  
Coated Fertilizer ◽  
Scanning Electron

This papper is about the use of biopolymer of polyvinyl alcohol (PVA) as a coat of different fertilizer granules (Azafoska 16:16:16 and Yara Kristalon 19:19:19) as a core material in presence of nitric acid. The biodegradable polymer layer provides uniform diffusion of minerals into the soil as the PVA shell decays. Scanning Electron Microscope (SEM) and Energy – Dispersive X-ray spectroscopy (EDX - 3600) were carried out for the characterization of bio-modified materials. The agrochemical changes of the soil in terms of macro-and microelements were also determined.

Die Reduktion von Bleidioxid-Synthese-Anoden / Reduction of Lead Dioxide Synthesis Anodes

1983 ◽  
Vol 38 (11) ◽  
pp. 1510-1517 ◽  
Author(s):  
Dietrich Wabner ◽  
Werner Tillmetz
Keyword(s):  
Electron Microscope ◽  
Nitric Acid ◽  
Scanning Electron Microscope ◽  
Chemical Reduction ◽  
Lead Dioxide ◽  
Active Surface ◽  
Lead Sulfate ◽  
Temporary Reduction ◽  
Precipitation Mechanism ◽  
Scanning Electron

Abstract The electrochemical and chemical reduction of α-and β-lead dioxide synthesis anodes in sulfuric or nitric acid, resp., are investigated. The processes are elucidated by scanning electron microscope pictures. For the reduction of lead dioxide to lead sulfate a solution-precipitation mechanism is confirmed. This result fits very well with present day battery research. Reduction as well as re-oxidation result in an enlargement of active surface. Therefore temporary reduction has a decisive influence on the potential characteristics of lead dioxide anodes. Conclusions are given for their application in electrochemical syntheses.

Surface Morphology of Acrylate/Carbon Nanotubes Nanocomposites on Mild Steel

2015 ◽  
Vol 1109 ◽  
pp. 451-455
Author(s):  
Muhammad Rashid Mahmud ◽  
M.S. Shamsudin ◽  
Muzammil Mat Akhir ◽  
Mohamad Kamal Harun ◽  
Mohamad Rusop ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Surface Morphology ◽  
Mild Steel ◽  
Field Emission ◽  
Steel Surface ◽  
Sol Gel ◽  
Mild Steel Surface ◽  
Scanning Electron

Acrylate/carbon nanotubes nanocomposites were prepared using sol-gel method. Carbon nanotubes with different percentage (0.2%, 0.4%, 0.6%, 0.8% and 1.0%) incorporated into acrylate and deposited on mild steel. Surface of acrylate/carbon nanotubes composites were characterized using by field emission scanning electron microscope (FESEM). Carbon nanotubes uniformly distributed in acrylate observed by FESEM shows increase in percentage of carbon nanotubes blend with acrylate the peak distribution become decreases.

SEM Studies of Adhesion Property of Red Oxide Primer on Selected Metal Substrates

2011 ◽  
Vol 367 ◽  
pp. 327-333
Author(s):  
M.A. Bolarinwa ◽  
A.R. Adetunji ◽  
O.O. Adewoye
Keyword(s):  
Stainless Steel ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Mild Steel ◽  
Steel Specimen ◽  
Adhesion Property ◽  
Galvanized Steel ◽  
Stainless Steel Specimen ◽  
Scanning Electron ◽  
Methods Of Application

The Scanning Electron Microscope (SEM) has been used to study the adhesion of red oxide primer on selected substrates. The substrates are stainless steel, mild steel, galvanized steel and aluminium. Twenty (20 No) specimens were prepared from the four different substrate metals and examined metallographically, after coating them with red oxide primer using different methods of application. Results showed varying degrees of adherence. The red oxide primer was able to form bonds with the different substrate metals, especially with the well cleaned, primed and subsequently painted stainless steel specimen.

scholarly journals Synthesis and structural study of multiferroics in the Gd x Bi 1−x Cr 0.5 Fe 0.5 O 3 system (x=0.1, 0.2, 0.5)

2020 ◽  
Vol 130 (1) ◽  
pp. 81-87
Author(s):  
M.M. Mataev ◽  
◽  
N.B. Abisheva ◽  
Zh.Y. Tupsinova ◽  
M.R. Abdraymova ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Nitric Acid ◽  
Scanning Electron Microscope ◽  
Phase Analysis ◽  
Structural Study ◽  
Single Phase ◽  
Synthesis Method ◽  
X Ray ◽  
Scanning Electron

The synthesis of compounds was carring out in the system of gadolinium chromite - ferrites doped with bismuth. The citrate-nitrate method was chosen as the synthesis method. An X-ray phase analysis was performed to study the formation of new phases. Based on the results of x-ray phase analysis, it was determined that the obtained compounds in the chromiteferrite system are crystallized in orthorhombic syngony with the Pbnm(62) spatial group. It is showing that when nitric acid is using as a precipitator, can be obtaining single-phase powders. In addition, the structure and parameters of elementary cells of synthesized chromite - ferrites were determining by x-ray phase analysis. The shapes and sizes of the resulting manganite powders determined by electron microscopy. According to the results of the scanning electron microscope, the powders of synthesized chromite-ferrites consist of crystals from 184.3 nm to 3.02 microns.

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