Synthesis, Characterization and Properties of Crystalline Materials

A special issue of Crystals (ISSN 2073-4352).

Deadline for manuscript submissions: 10 October 2024 | Viewed by 366

Special Issue Editors


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Guest Editor
LACAM—Departament of Metallurgical and Materials Engineering, Universidade Federal do Ceará, Campus do Picí, bloco 729, Fortaleza 60440-554, Brazil
Interests: physical metallurgy of steels and special alloys; corrosion of stainless steels; crystallographic texture; transformation texture in steels; magnetic materials and failure analysis

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Guest Editor
CIEFMA—Department of Materials Science and Engineering, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est (EEBE), Eduard Maristany 10-14, 08019 Barcelona, Spain
Interests: ceramic materials; metallic materials; metastable austenitic stainless steels; phase transformation; mechanical properties; wear; corrosion resistance
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Special Issue Information

Dear Colleagues,

This Special Issue aims to study the synthesis, characterization, mechanical properties, welding and corrosion of crystalline materials when utilized in various domains, including optical, magnetic, electrochemical, mechanical, thermal, electrical, biological, automotive, aerospace, biomedical, catalytic applications, etc.

This Special Issue will elucidate the function and particular application of these materials, study the mechanisms that influence the development of damage and degradation, as well as the methods that can be utilized to control these mechanisms.

This Special Issue will also address the utilization of different techniques for the synthesis of crystalline materials and for studying the properties associated with the microstructure of the material, such as the following: X-ray diffraction, x-ray fluorescence, X-ray microtomography (microCT), NMR, FTIR, circular dichroism spectroscopy, UV-VIS, Raman, XPS , AFM , SEM, EDX, TEM, inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), impedance, polarization, Mössbauer, and many other techniques. 

Prof. Dr. Hamilton Ferreira Gomes Abreu
Dr. Gemma Fargas
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • texture
  • morphology
  • tribology
  • corrosion
  • simulation
  • deterioration
  • non-destructive testing
  • electrochemical
  • mechanical properties
  • hydrogen
  • surfaces
  • oxide
  • high temperature
  • coating
  • sustainability
  • oxidation
  • wear
  • bioactivity
  • biomaterials
  • failure
  • damage monitoring
  • fatigue
  • erosion
  • surface properties
  • wear
  • residual stress
  • crack
  • inhibitors
  • thin films
  • microstructure
  • polymers
  • ceramics
  • metals
  • composites
  • additive manufacturing
  • magnetism
  • conduction
  • manufacturing

Published Papers (1 paper)

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Research

20 pages, 9139 KiB  
Article
Assessment of the Amino Acid L-Histidine as a Corrosion Inhibitor for a 1018 Carbon Steel in Aqueous Sodium Chloride Solution
by Milena Jacinto da Silva Moura, Roberta Bastos Vasques, Saulo Jose de melo Magalhães, Francisco Wagner de Queiroz Almeida Neto, Pedro de Lima Neto, Luís Paulo Mourão dos Santos, Mauro Andres Cerra Florez, Gemma Fargas Ribas, Samuel Lucas Santos Medeiros, Francisco Carlos Carneiro Soares Salomão, Eduardo Bedê Barros and Walney Silva Araújo
Crystals 2024, 14(8), 703; https://doi.org/10.3390/cryst14080703 - 2 Aug 2024
Viewed by 230
Abstract
The amino acid L-histidine, which has an imidazole ring, was investigated as a corrosion inhibitor for AISI 1018 carbon steel in chloride solution based on the effectiveness of inhibitors containing imidazole in their composition. A neutral environment was chosen for this study due [...] Read more.
The amino acid L-histidine, which has an imidazole ring, was investigated as a corrosion inhibitor for AISI 1018 carbon steel in chloride solution based on the effectiveness of inhibitors containing imidazole in their composition. A neutral environment was chosen for this study due to the scarcity of research on this amino acid in this environment type. Concentrations of 250, 500, and 1000 ppm were evaluated. Various methods were used to determine inhibition effectiveness, including mass loss, open circuit potential, linear potentiodynamic polarization, and electrochemical impedance spectroscopy. For mass loss, the inhibition efficiency varied from 83 to 88% according to the increase in concentration. For the electrochemical tests, the efficiency variation ranged from 62 to 90% with increasing amino acid concentration. Furthermore, a simulation analysis using quantum chemical calculations within the scope of Density Functional Theory (DFT) revealed that histidine’s nucleophilic character is crucial for its corrosion inhibitory capacity in an aqueous medium at pH 7. The inhibition efficiency increased with increasing concentration in a neutral medium, following the Langmuir isotherm for the adsorption of L-histidine. Additional studies were carried out using Fourier transform infrared spectroscopy (FTIR) and thermogravimetry (TGA). Analysis of the substrate surface by scanning electron microscopy (SEM) showed greater preservation with the addition of L-histidine, confirming its adsorption on the steel. Atomic Force Microscopy (AFM) also demonstrated an improvement in surface roughness in the presence of amino acids compared to the medium without an inhibitor. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Properties of Crystalline Materials)
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