Article
Thermodynamics
Jany H. F. de Jesus, Eder T. G. Cavalheiro
Summary: The thermal behavior of propyl, octyl, and dodecyl gallates were evaluated using various thermoanalytical techniques, showing characteristic melting behavior and crystallization of different solid forms upon cooling. Beyond the melting temperature, the samples decomposed. The study provided relevant information about their thermal behavior at higher temperatures and proposed mechanisms based on the results of XRD, FTIR-ATR, and hot stage microscopy.
THERMOCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Sylvie Tence-Girault, Jonathan Quibel, Alexis Cherri, Sebastien Roland, Bruno Fayolle, Stephane Bizet, Ilias Iliopoulos
Summary: PEKK, a semicrystalline polymer, is crucial for applications in aerospace, transportation, electronics, and oil & gas industries due to its properties like thermomechanical and chemical stability linked to its crystalline state. This study proposes a methodology to control and quantify the crystalline state of PEKK by analyzing small-angle X-ray scattering, wide-angle X-ray scattering, and differential scanning calorimetry data. The evolution of crystalline forms and total crystallinity with different crystallization temperatures were discussed, and the melting enthalpy of a 100% crystallized PEKK copolymer was estimated.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Funian Han, Liang Yu, Guanghua Wen, Jun Guo, Chunhua Ran, Shaopeng Gu
Summary: In this study, the effect of Na2O on the sintering and melting behavior of CaO-SiO2-CaF2 slag was investigated. The results showed that Na2O reduced the formation temperature of cuspidine and caused volume expansion. Additionally, Na2O lowered the melting point of the slag and promoted fluoride volatilization.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Food Science & Technology
Islem Mtibaa, Ahmed Zouari, Hamadi Attia, Mohamed Ali Ayadi, Sabine Danthine
Summary: The study found that camel milk butter can only be obtained through churning at 21 degrees Celsius, regardless of ripening conditions. Different ripening conditions did not significantly impact the water content, solid fat content, and polymorphism of camel milk butter. Ripening and churning conditions strongly influenced the melting properties and rheological behavior of camel milk butter.
FOOD AND BIOPROCESS TECHNOLOGY
(2021)
Article
Health Care Sciences & Services
Aneta Bednarova, Viera Habalova, Michaela Krivosova, Matteo Marcatili, Ivan Tkac
Summary: The present study aimed to evaluate the association of SLC6A4 (5-HTTLPR), FTO (rs9939609), and BDNF (rs6265, rs962369) polymorphisms with schizophrenia spectrum disorders in Slovak patients. The study found a marginally protective effect of LS + SS genotypes of 5-HTTLPR variant against the development of schizophrenia spectrum disorders, but the result failed to remain significant after Bonferroni correction. Furthermore, no significant association was found between other selected genetic variants and schizophrenia and related disorders.
JOURNAL OF PERSONALIZED MEDICINE
(2023)
Article
Thermodynamics
Aniele de Moura, Caroline Gaglieri, Luiz Carlos da Silva-Filho, Flavio Junior Caires
Summary: A new methodology for synthesizing a curcumin derivative was studied, which proved to be more efficient and environmentally friendly compared to traditional methods. The mechanochemical method was used, confirming the feasibility and advantages of this novel approach.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
Min Zheng, Lei Wei, Jing Chen, Qiang Zhang, Guohao Zhang, Xin Lin, Weidong Huang
Summary: This study investigated the development of surface features of Inconel 718 samples fabricated by selective laser melting under different laser powers and scanning speeds. The surface tension was identified as a key factor in the SLM process, pulling melted powder into the molten pool and affecting surface morphology.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Jefferson Lins da Silva, Clever Aparecido Valentin, Marcelo Kobelnik, Gabriel Orquizas Mattielo Pedroso, Maria Alejandra Aparicio-Ardila, Luiz Paulo Vieira de Araujo Junior, Marta Pereira da Luz
Summary: This study analyzed the degradation of geomats used for erosion control on a slope at HPP Simplicio in Brazil. The geomats were exposed in the field for over six years and in a UV ageing chamber for 500 h and 1000 h. The results showed that the geomat wires had a greater decrease in resistance when exposed in the field compared to the laboratory-exposed samples. This evaluation of the geomat wires provides an alternative method for analyzing the tensile strengths of discontinuous geosynthetic materials like geomats.
Article
Materials Science, Multidisciplinary
Jian Chen, Chaoying Li, Libo Zhou, Yanjie Ren, Cong Li, Xingyu Liao, Yuanjing Wang, Yan Niu
Summary: This study investigates the corrosion and tribocorrosion behaviors of selective laser melting processed Ti-15Mo alloy on different planes through electrochemical measurements and synergistic wear-corrosion analysis. The results demonstrate that the corrosion and tribocorrosion resistances vary among different planes and are attributed to the distinct microstructure of the alloy.
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Mechanical
Boning Yu, Yuming Li, Boussad Abbes, Shujun Li, Baoyi Yu
Summary: This study investigates the fatigue behavior and failure mechanism of rhomboidal dodecahedral cell structure prepared by electron beam melting, and improves fatigue performance through cryogenization treatment. The results show that the mapping ratio significantly affects the mechanical and fatigue properties.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Chemistry, Analytical
C. Tsioptsias, I. Tsivintzelis
Summary: In this study, the thermal behavior, structural changes, and polymorphism of gallic acid were investigated using thermal analysis techniques, infrared spectroscopy, and X-ray diffraction. It was found that gallic acid undergoes various thermochemical transitions, including decomposition and dehydration, in addition to water removal.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2022)
Article
Chemistry, Inorganic & Nuclear
Robin Turnbull, Javier Gonzalez-Platas, Fernando Rodriguez, Akun Liang, Catalin Popescu, Zhangzhen He, David Santamaria-Perez, Placida Rodriguez-Hernandez, Alfonso Munoz, Daniel Errandonea
Summary: The interplay between crystal structure and electronic structure in semiconductor materials is crucial for their potential technological applications. In this study, the high-pressure behavior of semiconducting antiferromagnetic material beta-Cu2V2O7 was investigated, revealing a pressure-induced phase transition to gamma-Cu2V2O7 below 4000 atm. The structural and electronic changes were studied using techniques such as single-crystal X-ray diffraction, absorption spectroscopy, and ab initio density functional theory calculations. These findings not only shed light on the potential barocaloric effects of beta-Cu2V2O7, but also suggest its significance as a multiferroic material with a decreased electronic band gap and a significant structural volume collapse.
INORGANIC CHEMISTRY
(2022)
Article
Energy & Fuels
Sourav Chatterjee, Dipankar Bhanja, Sujit Nath
Summary: This numerical study analyzes the melting behavior of three phase change materials, namely Lauric acid, paraffin wax, and n-Octadecane, in trapezoidal-shaped cavities with inner heated tubes. The study investigates the influence of the angular variation of the containers and the position of the tubes on the melting rate and heat transfer process of the phase change materials. The results demonstrate that the shape of the cavity and proper positioning of the inner tube can significantly affect the melting phenomenon and improve the charging rate.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Chengzong Zeng, Jun Shen, Chaofan Ma
Summary: Low melting point metal (LMPM) based composites containing particles with high thermal conductivity have potential applications in thermal management. In this study, lead free eutectic field's metal Bi32.5In51Sn16.5 was used as the LMPM, and diamond microparticles were added as thermal conductive reinforcement. The addition of diamond particles increased the thermal conductivity of the LMPM by 85%. The thermal performance of LMPM-based heat sink filled with LMPM/diamond composites showed improved temperature control during long-time heating and faster cooling after power-off. The addition of diamond particles also affected the melting/solidification process of LMPM, prolonging the melting duration, reducing the subcooling effect, and shortening the initial solidification time.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Thermodynamics
Patricia Osorio Ferreira, Aniele de Moura, Amanda Cosmo de Almeida, Everton Carvalho dos Santos, Ana Carolina Kogawa, Flavio Junior Caires
Summary: Cocrystallization is an efficient strategy to enhance the physicochemical properties of bioactive agents. In this study, a new norfloxacin-saccharin cocrystal and a cocrystal-solvate were synthesized using mechanochemical methods, with solubility experiments showing significant improvements in aqueous solubility compared to the pristine state.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Physical
A. V. Dmitriev, E. V. Vladimirova, M. V. Kandaurov, D. G. Kellerman, M. V. Kuznetsov, L. U. Buldakova, R. F. Samigullina
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Nuclear Science & Technology
A. V. Ishchenko, K. V. Ivanovskikh, I. A. Weinstein, R. F. Samigullina, V. V. Platonov
RADIATION MEASUREMENTS
(2019)
Article
Chemistry, Inorganic & Nuclear
A. P. Tyutyunnik, V. N. Krasil'nikov, I. V. Baklanova, R. F. Samigullina
JOURNAL OF STRUCTURAL CHEMISTRY
(2019)
Article
Physics, Condensed Matter
T. A. Onufrieva, T. I. Krasnenko, N. A. Zaitseva, I. V. Baklanova, M. V. Rotermel', I. V. Ivanova, I. D. Popov, R. F. Samigullina
PHYSICS OF THE SOLID STATE
(2019)
Article
Chemistry, Physical
Tatiana I. Krasnenko, Andrei N. Enyashin, Natalia A. Zaitseva, Rina F. Samigullina, Alexander P. Tyutyunnik, Inna V. Baklanova, Maria V. Rotermel, Tatiana A. Onufrieva
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Spectroscopy
I. V. Baklanova, V. N. Krasil'nikov, A. P. Tyutyunnik, A. N. Enyashin, Ya. V. Baklanova, O. I. Gyrdasova, R. F. Samigullina, E. G. Vovkotrub
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2020)
Article
Materials Science, Multidisciplinary
Yuliya Avdeeva, Irina Luzhkova, Alexey Ermakov, Rina Samigullina, Emma Vovkotrub, Edward Dobrinsky, Yuri Zainulin
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Rina F. Samigullina, Tatiana Krasnenko
MATERIALS RESEARCH BULLETIN
(2020)
Article
Chemistry, Physical
Tatiana Krasnenko, Natalia A. Zaitseva, Irina Ivanova, Inna Baklanova, Rina F. Samigullina, Mary Rotermel
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Ceramics
Maria Rotermel, Rina F. Samigullina, Irina Ivanova, Elena V. Vladimirova, Inna Baklanova, Tatiana Krasnenko
Summary: Two soft chemistry methods were used to obtain Zn1.9Cu0.1SiO4 pigment, showing that the sequence of phase formation is influenced by the initial solutions characteristics. The sol-gel method involves structural transformations due to the removal of organic components and destruction of the polymer network, while in coprecipitation method crystallization occurs after removal of organic components and structurally bound water. Well-crystallized single-phase Zn1.9Cu0.1SiO4 samples can be obtained by annealing at 800 degrees C for 10 h. UV-Vis-NIR spectra show broad band electronic d-d transitions in the samples.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Tatiana I. Krasnenko, Rina F. Samigullina, Natalia A. Zaitseva, Irina I. Ivanova, Stepan V. Pryanichnikov, Maria V. Rotermel
Summary: The effect of magnesium introduction on the structural, thermal, and luminescent characteristics of Zn2SiO4:Mn at a fixed magnesium concentration of 6 at% has been studied. The results show that the introduction of magnesium can modify the crystallographic positions and enhance the photoluminescence performance of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Rina F. Samigullina, Irina Ivanova, Natalia A. Zaitseva, Tatiana Krasnenko
Summary: The phase and structure formation of Zn2SiO4:Mn phosphor during solid-state synthesis in air from ZnO, SiO2, and Mn2O3 were studied, and the results showed the formation of various compounds at different temperatures, eventually resulting in the formation of Zn2SiO4:Mn phosphor.
Article
Chemistry, Inorganic & Nuclear
I. V. Ivanova, N. A. Zaitseva, R. F. Samigullina, I. V. Baklanova, M. V. Rotermel
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Physical
Ekaterina Konstantinova, Ilia A. Leonidov, Alexey A. Markov, Rina F. Samigullina, Andrey Chukin, Ivan I. Leonidov
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Inorganic & Nuclear
N. A. Zaitseva, I. Ivanova, R. F. Samigullina, M. Rotermel, T. Krasnenko
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2019)