Vikash Gautam, A. Patnaik, Inder K. Bhat, V. Kukshal, M. Pawar, Ashiwani Kumar
{"title":"Optimization of physico-mechanical and erosive wear properties of single/multilayer – coated granite filled aluminum alloy composites","authors":"Vikash Gautam, A. Patnaik, Inder K. Bhat, V. Kukshal, M. Pawar, Ashiwani Kumar","doi":"10.1515/ijmr-2023-0041","DOIUrl":"https://doi.org/10.1515/ijmr-2023-0041","url":null,"abstract":"\u0000 In the present research, uncoated and coated (CrN/SiN–CrN) granite dust reinforced aluminum alloy (AA 1050, AA 5083) composites samples were fabricated using stir casting and their physical, mechanical and slurry erosion behavior were assessed. The study reveal a persistent increase in void content, hardness, impact strength and stress intensity factor for both uncoated and coated alloy with the inclusion of reinforcement. In contrast, flexural strength and corrosion rate decrease continuously with increased granite content and also with the corresponding coating. Multilayer coated 5083 aluminum alloy composite with 6 wt.% granite particle shows maximum hardness, impact strength and stress intensity factor and minimum slurry erosion rate. The entropy method was applied to the operating parameter to rank the fabricated composites. The performance of each operating parameter is determined using the VIKOR (Vise Kriterijumska Optimizacija Kompromisno Resenje) optimization method. The optimal formulation based on Performance-Defining Attributes (PDAs) is observed for multilayer-coated 6 wt.% granite particulate reinforced 5083 aluminum alloy composites.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140653116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel investigation of co-processing porous geopolymer using glass fibres recycled from waste turbine blades","authors":"Kaibao Wang, Liu Yang","doi":"10.1515/ijmr-2023-0178","DOIUrl":"https://doi.org/10.1515/ijmr-2023-0178","url":null,"abstract":"\u0000 This work investigates the possibility of using recycled glass fibre (rGF) to co-process porous geopolymer. A new procedure was developed to incorporate rGF into geopolymer preparation and the content of rGF in porous geopolymer was varied to investigate its effect on thermal and mechanical properties. The rGF was co-processed through mixing with a combination of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) solution to supplement raw materials required to make geopolymer but also provide fibres as potential structure reinforcement. Due to the enriched silica content obtained from rGF and leftover fibres, a nearly 80 % strength increase (from 0.092 MPa to 0.165 MPa) was obtained without compromising its low thermal conductivity. This opens up a potential route to re-using rGF in the development of improved porous geopolymer for thermal insulation applications.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140653204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. T. Fabbro, Luís P. S. Santos, F. M. Yamamoto, Jorge T. Matsushima, M. Baldan
{"title":"Facile synthesis of Ag2ZrO3 nanocrystals with highly enhanced visible-light photocatalytic activity","authors":"M. T. Fabbro, Luís P. S. Santos, F. M. Yamamoto, Jorge T. Matsushima, M. Baldan","doi":"10.1515/ijmr-2023-0233","DOIUrl":"https://doi.org/10.1515/ijmr-2023-0233","url":null,"abstract":"\u0000 This paper describes the synthesis of Ag2ZrO3 nanocrystals using coprecipitation and microwave-assisted hydrothermal methods. These nanocrystals were characterized by means of X-ray diffraction, micro-Raman spectroscopy, Fourier transform infrared absorption spectroscopy, field emission scanning electron microscopy, and UV–Visible spectroscopy, and their photocatalytic performance for methylene blue degradation under visible-light irradiation has been tested. The X-ray diffraction, micro-Raman spectroscopy, Fourier transform infrared absorption spectroscopy analyses indicate that the Ag2ZrO3 nanocrystals have good crystallinity and no secondary phases. The UV–Visible spectroscopy results showed a variation in the optical band gap values (2.71–2.97 eV) with increasing temperature, which indicates the possible presence of defects in the crystal lattice at a medium range. Field emission scanning electron microscopy images revealed that the nanocrystals have uneven spherical shapes and average particle size around 50–70 nm. The good photocatalytic efficiency can be attributed to defects in the silver zirconate structure capable of forming the active adsorption sites. Finally, we discuss a photocatalytic mechanism to understand the photocatalytic process in cationic dye (methylene blue) degradation in aqueous solution.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140738647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Basant Kumar Yadav, Virendra Singh, Rajat Gangwar, Neeraj Bisht
{"title":"Study of optical, structural and radiation shielding properties of (55 − x)TeO2–20ZnO–25B2O3–xEr2O3 glass matrix","authors":"Basant Kumar Yadav, Virendra Singh, Rajat Gangwar, Neeraj Bisht","doi":"10.1515/ijmr-2021-8407","DOIUrl":"https://doi.org/10.1515/ijmr-2021-8407","url":null,"abstract":"\u0000 Erbium doped zinc boro-tellurite (EZBT) glass samples with molar composition of (55 − x)TeO2–20ZnO–25B2O3–xEr2O3 (x = 0.0, 0.5, 1.0, 1.5 and 2.0 mol.%) were prepared by a conventional melt quenching technique. The prepared samples were characterised using X-ray diffraction, Fourier transform infrared spectroscopy and ultraviolet–visible spectroscopy techniques to investigate the structural, optical and dielectric properties. To study the radiation shielding capabilities, the parameters such as mass attenuation coefficient (μ\u0000 m), half-value layer (HVL), effective atomic number (Z\u0000 eff) etc., were evaluated using WinXCom software. Judd–Ofelt analysis was carried out to determine the intensity of electronic transitions and other radiative transition parameters within the 4f shell of erbium ions. The μ\u0000 m values in a range of (108.5–0.03) cm2 g−1 for energy range (0.01–10) MeV were obtained for 2.0 mol.% erbium-doped tellurite glass matrix. The μ\u0000 m and HVL values were also compared with conventionally used ordinary concrete and specific lead borate glass at certain energies. The detailed investigation of this current EZBT glass matrix is very useful in the specific optical and radiation shielding applications of this EZBT glass.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140742739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kai Zhang, Ning Zhong, Xianjin Zhang, Chen Wen, Yun Zhou, Shangwen Lu
{"title":"Effect of heat treatment on the microstructure and mechanical properties of biocompatible Ti–Ta–Nb–Zr alloys prepared by selective laser melting","authors":"Kai Zhang, Ning Zhong, Xianjin Zhang, Chen Wen, Yun Zhou, Shangwen Lu","doi":"10.1515/ijmr-2022-0467","DOIUrl":"https://doi.org/10.1515/ijmr-2022-0467","url":null,"abstract":"\u0000 In this paper, a low elastic modulus, non-cytotoxic Ti-10Ta-2Nb-2Zr titanium alloy was prepared by selective laser melting additive manufacturing. The effect of annealing and solution heat treatment on the structure, mechanical properties, and tribological behavior were investigated. The results show that the microstructure was composed of the main α′ phase and a small amount of β phase. Heat treatment improved strength and elongation. The ultimate tensile strength (UTS) and elongation of the deposited specimen were 807 ± 8.74 MPa and 6.6 ± 0.75 %, respectively. After annealing, the UTS was nearly the same, but the elongation increased to 15.3 ± 0.95 %. After solution and aging, the UTS and elongation increased to 873 ∼ 813 MPa and 9.25–11.9 %, respectively. The elastic modulus of the deposited specimen was 120 ± 6.81 GPa. The elastic moduli of heat treated specimens ranged from 74 ± 4.04 to 96 ± 5.13 GPa. The elastic moduli of heat treated specimens were close to that of β-type titanium alloys. The wear mechanism was mainly abrasive wear and oxidative wear. Compared with the deposited and annealed specimens, the solution and age treated specimens had low friction coefficients and much better wear resistance. In terms of properties and cost, the designed alloy has great potential in the medical implant field.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140743279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exploring the functional abilities of PVA–combeite composites as potential candidates for bone substitutes","authors":"Nishant Kumar Kolli, S. Kundu, Santanu Roy","doi":"10.1515/ijmr-2023-0157","DOIUrl":"https://doi.org/10.1515/ijmr-2023-0157","url":null,"abstract":"\u0000 The field of biomaterials continually seeks novel materials to meet the requirements of bone tissue engineering. This manuscript explores polyvinyl alcohol (PVA)–combeite composites. The composites were characterized using X-ray diffraction and scanning electron microscopy. Notably, the X-ray diffraction patterns unveil a combination of amorphous and crystalline regions attributed to PVA and combeite, respectively. More importantly, PVA–combeite composites exhibit reduced swelling and degradation rates compared to pure PVA. The percentage swelling and degradation values (%) for the prepared materials fall within the range of 190–340 and 55–75, respectively. The spherical apatite structures formed post the immersion in Hanks’ Balanced Salt Solution indicate that these materials could be used in the field of bone tissue engineering.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140375209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Valeria Nastar-Córdoba, Alejandra I. Guerrero, Claudia Villaquiran-Raigoza, Alfonso Ramírez, Liliana Tirado, Sonia Gaona-Jurado
{"title":"Effect of synthesis method on structural and magnetic properties of La0.7Ca0.2Ba0.1MnO3","authors":"Valeria Nastar-Córdoba, Alejandra I. Guerrero, Claudia Villaquiran-Raigoza, Alfonso Ramírez, Liliana Tirado, Sonia Gaona-Jurado","doi":"10.1515/ijmr-2022-0446","DOIUrl":"https://doi.org/10.1515/ijmr-2022-0446","url":null,"abstract":"\u0000 We study the effect of the synthesis method on the structural and magnetic properties of La0.7Ca0.2Ba0.1Mn03. The samples were synthesized by coprecipitation and solution combustion methods. X-ray diffraction and scanning electron microscopy were performed to investigate the crystallographic structure, showing that both methods produced La0.7Ca0.2Ba0.1Mn03 monophasic samples. From magnetization measurements a second-order, ferromagnetic to paramagnetic, phase transition was observed. The Curie temperature is found to be 272 K for the sample obtained by coprecipitation and 283 K for the sample obtained by solution combustion. There is a small magnetic hysteresis for both samples. The magnetocaloric parameters were obtained using a phenomenological model; the magnetic entropy change and relative cooling power factor are higher in the sample synthesized by combustion.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140227471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Zhang, Qingzheng Ran, Lijie Gong, Xiaowen Chen, Qiyuan Tang, Dezhi Zeng
{"title":"Effect of post-weld heat treatment on corrosion resistance of X90 pipeline steel joints","authors":"D. Zhang, Qingzheng Ran, Lijie Gong, Xiaowen Chen, Qiyuan Tang, Dezhi Zeng","doi":"10.1515/ijmr-2021-8601","DOIUrl":"https://doi.org/10.1515/ijmr-2021-8601","url":null,"abstract":"\u0000 In order to improve the corrosion resistance of welded joints, X90 pipeline steel joints were subjected to post-weld heat treatment at 610 °C, 640 °C, and 670 °C (holding time was 1 h). Through electrochemical corrosion and full immersion corrosion experiments, the corrosion resistance of welded joints under various conditions was tested, and the surface morphology and corrosion products of the corroded samples were analyzed by scanning electron microscopy and X-ray diffraction analysis. The experimental results show that the corrosion products of X90 pipeline steel welded joints in simulated soil solution mainly include Fe(OH)3, γ-FeOOH, α-Fe2O3, γ-Fe2O3, and a small amount of Fe3O4, FeCl3 and Fe. After heat treatment at 610 °C, the corrosion current density of the parent metal, heat-affected zone, and weld metal of the joint changes from 1.081, 2.889, 2.079 (×10−5 A cm−2) to 0.977, 2.211, 1.810 (×10−5 A cm−2), respectively, the corrosion resistance is improved.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140229164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fabrication of magnetically separable Ag–ZnFe2O4 hollow nanospheres with efficient photocatalytic activity","authors":"Zhenxing Liu","doi":"10.1515/ijmr-2022-0459","DOIUrl":"https://doi.org/10.1515/ijmr-2022-0459","url":null,"abstract":"\u0000 Environmental pollution seriously affects the survival of human beings. Semiconductor photocatalysis technology is considered to be one of the most effective ways to solve environmental pollution and energy shortage. The high degradation efficiency of nanometric photocatalysts has attracted extensive attention, but the photocatalysts are difficult to recycle and reuse, which limits their application. ZnFe2O4 hollow nano-photocatalysts loaded with different contents of Ag were successfully prepared by template-assisted calcination and photoreduction, and can be conveniently separated from water in a magnetic environment. The results indicate that Ag–ZnFe2O4 possess a hollow nano-shell structure with a particle size distribution of about 280 nm and a shell thickness of about 24 nm. Ag–ZnFe2O4 shows the strongest photocurrent intensity and photocatalytic performance compared to bulk ZnFe2O4 and nano ZnFe2O4. When the concentration of AgNO3 solution is 0.2 mmol, Ag–ZnFe2O4 has the strongest photodegradation efficiency to degrade RhB under visible light irradiation. After several photodegradation experiments, the photodegradation efficiency is only decreased by 2.8 %, further proving that Ag–ZnFe2O4 possess good application value in wastewater treatment.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140263164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimization of magnetic properties of MnFe2O4 by modulating molarity of NaOH as precipitating agent","authors":"S. Gulati, Shubha Gokhale, V. Luthra","doi":"10.1515/ijmr-2023-0017","DOIUrl":"https://doi.org/10.1515/ijmr-2023-0017","url":null,"abstract":"\u0000 MnFe2O4 nanoparticles were synthesized using the co-precipitation method with a wide range of molar concentrations of sodium hydroxide 0.76 M−3.0 M. X-ray diffraction, field effect scanning electron microscopy, transmission electron microscopy, and vibrating sample magne-tometry were employed to characterise the structural, morphological, and magnetic characteristics of nanoparticles. Field effect scanning electron microscopy and transmission electron microscopy images show that the particles were spherical in shape for all the samples except for sample prepared at a molar concentration of 1.3 M. Particle shape was found to depend on the molar concentration of NaOH. The hysteresis loops of the samples possessed a very small area and low coercivity. The crystallite size (cs), saturation magnetisation, coercivity, retentivity, squareness ratio and anisotropy constant were found to be dependent on the molar concentration on NaOH. M\u0000 S was noted to be at a maximum of 64.4 emu g−1 at a molar concentration of 1.3 M. The ratio t/cs (where t is the thickness of the dead layer) was calculated to account for the variation in M\u0000 S. H\u0000 C was found to be maximum of ∼52 Oe at molar concentrations between 1.0 M and 2.0 M. M\u0000 r and M\u0000 r/M\u0000 S were found to be a maximum of 8.95 emu g−1 and 0.15, respectively, for the molar concentration of 2.0 M.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140086010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}