Bulletin of Materials Science最新文献

{"title":"Recent progress on the preparation and properties of Mn–Cu alloys","authors":"Conghui Ma,&nbsp;Kaibin Huang,&nbsp;Yuan Qiu,&nbsp;Muhammad Irfan Hussain,&nbsp;Longqi Cai,&nbsp;Yang Li,&nbsp;Gening He,&nbsp;Zhangwei Chen","doi":"10.1007/s12034-026-03684-7","DOIUrl":"10.1007/s12034-026-03684-7","url":null,"abstract":"<div><p>This study reviews the recent progress on Mn–Cu alloys, with a focus on how composition design, heat treatment, and processing routes collectively govern their mechanical strength and damping performance. This review elucidates how alloying and thermal treatments reshape the microstructure and optimize the strength–ductility balance and damping capacity. Mechanistically, the discussion centers on spinodal decomposition and FCC→FCT martensitic transformation (MT), further incorporating insights from thermodynamic analyses and phase-field modeling. By linking these mechanisms to compositional and processing effects, the review outlines a clear pathway for optimizing Mn–Cu alloys. Finally, the key challenges and future research directions, including stability improvement of spinodal decomposition, refining phase transformation mechanisms, and tailoring heat treatment techniques to enhance the overall performance of Mn–Cu alloys have been discussed. This review serves as a valuable resource for researchers and engineers aiming to advance the understanding and application of Mn–Cu alloys.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838392","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":"Study on sintering heat treatment process optimization and toughening mechanism of powder metallurgy high-manganese lightweight steel","authors":"Zhiyao Li,&nbsp;Mingli Qin,&nbsp;Haoyang Wu,&nbsp;Baorui Jia","doi":"10.1007/s12034-026-03681-w","DOIUrl":"10.1007/s12034-026-03681-w","url":null,"abstract":"<div><p>This study presents the heat treatment optimization protocols for powder metallurgy (PM) fabricated Fe-30Mn-12Al-2C high-manganese steel and to analyzes its microstructural evolution. The samples were prepared via PM and subjected to heat treatments. The results indicate that the optimal processing parameters are sintering at 1250°C for 2 h, followed by solution treatment at 1050°C for 30 min, rapid quenching, and aging at 500°C for 4 h. Under these conditions, the material achieves a maximum tensile strength of 1042 MPa and an elongation of 4%. The strengthening mechanism is primarily governed by the fine-grained austenite matrix (grain size &lt; 9 μm) and the precipitation of uniformly distributed carbides, which enhances the strength. Notably, the study identifies that the residual brittle alumina particles from the PM process act as a crack initiation sites, limiting further improvement in ductility. These findings provide critical insights into balancing the strengthening effects of carbides while highlighting the need of oxide control in the PM processing of high-aluminum steels.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838393","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":"Dielectric behavior and electrical conductivity of lead (II) tetraphenylporphyrin (PbTPP) nanocomposite with carbon nanotubes (CNTs) and polyaniline (PANI)","authors":"Chinta Haran Majumder,&nbsp;Prankrishna Pal,&nbsp;Shilpa Maity,&nbsp;Chiranjib Bhowmik,&nbsp;Sudip Kumar Ghosh,&nbsp;Arpan Kool,&nbsp;Krishanu Chatterjee","doi":"10.1007/s12034-026-03677-6","DOIUrl":"10.1007/s12034-026-03677-6","url":null,"abstract":"<div><p>Advanced electrical and electromagnetic applications have generated a significant interest in the creation of multifunctional nanocomposites. The purpose of this work is to improve the dielectric and conductive performance of multifunctional device applications by synthesizing and electrically characterizing a nanocomposite made of lead (II) tetraphenylporphyrin (PbTPP), polyaniline (PANI), and carbon nanotubes (CNTs). The PANI–CNT nanocomposite was prepared via <i>in situ</i> oxidative polymerization of aniline in the presence of sulfosalicylic acid (SSA), ammonium persulfate (APS), and single-walled carbon nanotubes (SWCNTs) under acidic conditions, ensuring uniform dispersion and strong interfacial interactions among the components. The final composite of PbTPP–PANI–CNT was obtained via simple blending of PbTPP with preformed PANI–CNT nanocomposite. A conductive network is formed within the composite matrix by PANI and CNTs, while the PbTPP function as a macrocyclic conjugated organic core with intrinsic semiconducting characteristics. Uniform dispersion of CNTs and PbTPP inside the PANI matrix was confirmed by structural and morphological investigations utilizing X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) methods. At room temperature, dielectric measurements were performed in a frequency range of 10–1 MHz. The nanocomposite exhibited a high dielectric constant (~300) at 40 Hz, which gradually decreased with increasing frequency due to interfacial polarization and the Maxwell–Wagner–Sillars (MWS) effect. The dielectric loss tangent (tan<i> δ</i>) showed frequency-dependent behavior and a relaxation peak, indicating space charge polarization. According to Jonscher's universal power law, the AC conductivity <span>({(sigma }_{text{a}text{c}}))</span> increases with frequency, suggesting a hopping process. In contrast to pristine PbTPP's ~1.6 × 10⁻⁷ S m⁻¹ and PANI–CNT's ~6.1 × 10⁻⁶ S m⁻¹, the nanocomposite demonstrated a significantly improved electrical conductivity of ~2.2 × 10⁻⁵ S m⁻¹ at ambient temperature. The presence of PbTPP facilitate electronic delocalization, and CNTs formed efficient conductive networks. According to these findings, the combination of PbTPP, PANI, and CNTs improves the dielectric and electrical characteristics as well as the temperature dependence Arhenius plot, which guarantees the low activation energy. These results suggest its potential applicability in electromagnetic interference (EMI) shielding, supercapacitors, flexible electronics, and other dielectric-based devices.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838394","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":"4D printing: The Nexus of smart materials, manufacturing processes, and industrial innovation","authors":"Santosh Kumar,&nbsp;Narinder Kumar","doi":"10.1007/s12034-026-03690-9","DOIUrl":"10.1007/s12034-026-03690-9","url":null,"abstract":"<div><p>4D printing is an emerging manufacturing technology that extends conventional 3D printing by incorporating the dimension of time, enabling fabricated structures to dynamically change their shape, properties, or functionality in response to external stimuli. This review provides a comprehensive overview of the interplay between stimuli-responsive materials, including shape memory polymers (SMPs), composite hydrogels (with emphasis on dual-hydrogel ceramic systems for biomedical applications), liquid crystal elastomers, shape memory alloys, and other active materials. Advanced fabrication techniques, such as fused deposition modeling (FDM), stereolithography (SLA), direct ink writing (DIW), emerging additive manufacturing approaches, and multi-material printing strategies, are also discussed. Major actuation mechanisms, including thermal, hygroscopic, and photonic responses, as well as electrical, magnetic, chemical, and biological stimuli, are examined to elucidate the underlying principles governing shape transformation. Furthermore, the diverse applications of 4D printing in soft robotics and actuators, biomedical devices, aerospace, defense, textiles, and wearable technologies are reviewed. The article concludes by addressing current challenges related to material scalability, design complexity, and computational modeling, while highlighting future opportunities arising from the integration of artificial intelligence (AI) and advanced manufacturing workflows. This review serves as a valuable resource for researchers seeking to advance 4D printing toward next-generation intelligent manufacturing systems.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838276","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":"Ionic conductivity and thermal stability of non-precious metal doped ceria nanocomposite for fuel cell applications","authors":"MUKESH KUMAR,&nbsp;M ISHAQUE ABRO,&nbsp;VINOD KUMAR,&nbsp;LAVEET KUMAR,&nbsp;ABDUL HANAN,&nbsp;GHAZANFAR ABBAS,&nbsp;MAMDOUH ASSAD","doi":"10.1007/s12034-026-03753-x","DOIUrl":"10.1007/s12034-026-03753-x","url":null,"abstract":"<div><p>Materials with significant conductivity at elevated temperatures have been widely studied as they play a key role in bringing fuel cells, a sustainable energy source, to the energy market. Ceria-based materials have been the center of focus for the last few decades for their capability to maintain good conductivity at high temperatures, which is also a challenge to the research community. For smooth, uninterrupted, and clean operation of fuel cell systems, materials that maintain good conductivity at low temperatures are needed. To address this challenge, mixed metal oxide composite materials are prepared in a simple and cost-effective way. Barium-doped ceria (BDC) is prepared by a wet-chemical process, followed by two types of BDC composites (NBDC-1 and NBDC-2) by adding a stoichiometric amount of Na₂CO₃. The morphological analysis of synthesized nanocomposites is studied through scanning electron microscopy (SEM). Phase analysis (XRD) of BDC and NBDCs is conducted to study the characteristic peaks of the BDC structure. A four-point probe resistivity test determines the DC conductivity of BDC and NBDCs. BDC, NBDC-1 and NBDC-2 have shown conductivity of 0.18, 4.6, and 0.047 S/cm at 450°C, respectively. It is concluded from the results that NBDC-1 exhibits a good ionic conductivity at higher temperatures.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837569","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":"First-principles study on structural, electronic, optical and thermal properties of halide double-perovskite Rb2InCuX6","authors":"Asif Khan,&nbsp;G Murtaza,&nbsp;Nabeel Israr,&nbsp;Aijaz Rasool Chaudhry","doi":"10.1007/s12034-026-03719-z","DOIUrl":"10.1007/s12034-026-03719-z","url":null,"abstract":"<div><p>This work presents novel halide double perovskites (HDPs) with the chemical formula Rb₂InCuX₆ (X = F, Cl, and Br). The Tran–Blaha modified Becke–Johnson (TB-mBJ) approximation was utilized to perform density functional theory (DFT) calculations. The calculated negative formation energies, tolerance factors, and octahedral factors provide crucial information about the robustness of the three-dimensional phase of the HDPs, validating their structural stability. The electronic characteristics of the materials were meticulously analyzed through an in-depth examination of their band structures and densities of states. The calculated bandgap values are 1.54 eV, 0.94 eV, and 0.58 eV for Rb₂InCuF₆, Rb₂InCuCl₆, and Rb₂InCuBr₆, respectively. To evaluate the suitability of the investigated compounds for optical applications, we conducted a comprehensive analysis of both the real and imaginary components of the dielectric function for each compound, which were subsequently used to determine various optical properties as functions of incident photon energies up to 14 eV, including the refractive index n(ω), extinction coefficient k(ω), optical conductivity σ(ω), absorption coefficient α(ω), reflectivity R(ω), and energy loss L(ω). The spectral properties exhibited by the materials indicated their suitability for high-frequency applications, primarily because of their pronounced peak absorption within the ultraviolet (UV) spectrum. The electronic thermal conductivity k/τ, Seebeck coefficient S, power factor PF, and electrical conductivity σ/τ were examined using the BoltzTraP code to determine the thermoelectric characteristics of the investigated compounds. The figure of merit ZT is closer to 1, suggesting that Rb₂InCuX₆ (X = F, Cl, and Br) is a promising candidate for thermoelectric applications at both high and low temperatures.\u0000</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837813","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":"Correction to: Application of electrocatalytic effects of a newly synthesized monomer and graphene quantum dots to modify glassy carbon microelectrode as a sensor for determination of riluzol","authors":"Foroozan Hasanpour,&nbsp;Masoud Fouladgar,&nbsp;Mohsen Nekoeinia,&nbsp;Hoda Abasi","doi":"10.1007/s12034-026-03738-w","DOIUrl":"10.1007/s12034-026-03738-w","url":null,"abstract":"","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927893","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":"Integrated lifetime analysis of polyamides: A study on virgin and recycled variants using conventional and predictive models","authors":"S JEYA VARSHINI,&nbsp;R S N SAHAI,&nbsp;DEEPANKAR BISWAS","doi":"10.1007/s12034-026-03688-3","DOIUrl":"10.1007/s12034-026-03688-3","url":null,"abstract":"<div><p>The recycling of plastics is an essential aspect of sustainability; however, the quality of the recycled material is a major challenge to overcome. Polyamide 6 (PA 6) is a versatile material used extensively in various applications. This study assesses the lifetime of virgin and recycled PA-6 filled with glass fiber (GF, 30%) materials using accelerated life testing (ALT). Thermal aging is performed at three different temperatures, 130, 160 and 190°C, where both materials are subjected to aging in a hot-air oven. Tensile strength tests are conducted at regular intervals with a universal testing machine (UTM). A 50% reduction in tensile strength from the initial unaged value is observed for each temperature, which is then used to create a time–temperature plot based on the Arrhenius principle. By extrapolating the plot to the target application temperature, the estimated useful life of the materials is determined using a Markov model. For the heat-stabilized grade of PA 6 GF 30, the tensile strength of recycled material is 11% lower than the virgin PA 6 GF 30, for the temperature ranges of 130 to 190°C, whereas for the general-purpose grade of PA 6 GF 30, the tensile strength of recycled material is 18% lower than the virgin PA 6 GF 30. The LCA analysis shows that as the temperature increases, the lifetime of polyamide decreases. However, as the temperature rises, the difference in lifespan between the recycled and virgin materials diminishes, with only a small 1.6% reduction in the recycled sample's lifetime at higher temperatures. Additionally, Fourier transform infrared spectroscopy (FTIR) analysis verifies the presence of functional groups and provides insights into the degradation behavior of both the virgin and recycled PA-6 GF 30% materials at their respective absorption levels, supporting the findings on material performance over time.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837812","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":"Thermal decomposition, solubility and biomineralization changes after incorporation of copper ions and bioactive glass into hydroxyapatite whiskers","authors":"Chunrong Yang,&nbsp;Lihua Hong,&nbsp;Junwei Xu,&nbsp;Kaipeng Lin,&nbsp;Guanghui Li,&nbsp;Wenlong Zhang,&nbsp;Xiaojie Gao,&nbsp;Li Huang,&nbsp;Yan Lin,&nbsp;Huazhong Wu","doi":"10.1007/s12034-026-03707-3","DOIUrl":"10.1007/s12034-026-03707-3","url":null,"abstract":"<div><p>This study aims to fabricate hydroxyapatite (HA)/β-tricalcium phosphate (β-TCP) composite whiskers to overcome the slow degradation rate and poor mechanical properties of hydroxyapatite. Copper and bioactive glass (BG) were incorporated into HA, and the composite whiskers were prepared by hydrothermal synthesis followed by high-temperature calcination. The crystal structure, phase composition, degradation behavior, and mineralization properties of the whiskers were investigated. The synthesized whiskers reached lengths of 65–114 μm, with aspect ratios of 43–76, and exhibited smooth surfaces. The incorporation of copper ions and BG disrupted the crystal structure of HA, promoted its thermal decomposition, and facilitated the formation of β-TCP. As the dopant content increased, the crystallinity, length, and aspect ratio of the whiskers gradually decreased, although the whisker morphology was retained. The relative contents of HA and β-TCP in the whiskers also decreased. Compared with pure HA, the composite whiskers exhibited enhanced degradation and mineralization behavior in simulated body fluid (SBF). Furthermore, the degradation and mineralization rates of the whiskers could be regulated by adjusting the contents of copper ions and BG. These composite whiskers are expected to maintain good mechanical strength while exhibiting synchronized degradation and new bone tissue growth, together with excellent bioactivity.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837600","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":"Layer-by-layer assembly of a functional antifog coating on sapphire from natural polymers","authors":"Koushik Mukherjee","doi":"10.1007/s12034-026-03697-2","DOIUrl":"10.1007/s12034-026-03697-2","url":null,"abstract":"<div><p>This work presents a durable, multifunctional antifog coating on sapphire substrates fabricated via layer-by-layer (LbL) assembly of naturally derived, oppositely charged biopolymers—chitosan and carboxymethyl cellulose (CMC). The resulting thin film exhibits excellent long-term antifog performance, strong adhesion, high optical transparency, antireflective properties, and antibacterial activity, all without the need for UV activation or additional post-treatment. This sustainable, biocompatible coating addresses key limitations of conventional antifog technologies and holds strong potential for application in endoscopic and other minimally invasive medical devices where fogging and microbial contamination are critical concerns.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837601","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}