Review
Materials Science, Multidisciplinary
Bipin Sankar, Chaitanya Vinay, Jithin Vishnu, Karthik Shankar, G. P. Gokul Krishna, V Govind, A. J. Jayakrishna
Summary: This article evaluates the research and progress status of Cu-Ni-Sn-based spinodal alloys, focusing on the methods and technologies used to enhance the properties of cast Cu-Ni-Sn alloys in industrial applications. It introduces Cu-Ni-Sn alloys as a potential alternative to copper-beryllium alloys and provides a comprehensive overview of spinodal decomposition. The article explores the processing of Cu-Ni-Sn alloys through traditional casting and highlights strategies to overcome limitations. It also discusses novel processing routes for developing spinodal Cu-Ni-Sn alloys and highlights progress in fabricating these alloys using additive manufacturing techniques.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
M. J. Szczerba
Summary: This study reports the first observations of giant magnetic-field-induced bending effect in Ni-Mn-Ga-Co-Cu alloys produced by the melt-spinning technique. The bending effect initiation was observed at a very low magnetic field, and the overall deformation was composed of plastic and elastic contributions, with the elastic contribution dominating in the later stages of the experiment.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
Gokhan Kirat, Mehmet Ali Aksan
Summary: Ni-50-xCu(x)Mn(38)Sn(12) + B3% alloys were fabricated using melt spinning technique, and their structural, electrical, and magnetoresistance properties were investigated. The ribbons were found to contain an austenite phase with L2(1) type structure, with resistance showing a first order martensite transition with temperature. The application of a magnetic field caused a noticeable shift in the martensite transition temperature towards lower temperatures, and the resistances dropped sharply with increasing magnetic field, indicating a magnetic field-induced martensite-austenite transition.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Review
Chemistry, Physical
Karthik Manu, Jan Jezierski, Madikkamadom Radhakrishnan Sai Ganesh, Karthik Venkitaraman Shankar, Sudarsanan Aswath Narayanan
Summary: The article reviews the progress made in bronze alloys processing and focuses on enhancements in microstructural characteristics, hardness, tensile properties, and tribological behavior. Changing microstructure through alloying and manufacturing techniques improves the properties of bronze alloys, which are widely used in automobile and marine industries.
Article
Chemistry, Physical
Le Feng, Jens Freudenberger, Kornelius Nielsch, Thomas George Woodcock
Summary: MnAl-C-Ni magnets with high energy products were produced by hot extruding pulverised melt-spun ribbons, with smaller initial -r-phase grain sizes contributing to an enhancement of the squareness factor of the demagnetisation curve.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yanqing Lai, Shi Chen, Xiaolei Ren, Yuanyuan Qiao, Ning Zhao
Summary: A novel reflow method with an additional temperature gradient (TG) was used to bond single crystal (001)Cu and polycrystal Ni substrates with pure Sn as interlayer. The growth behavior and morphology evolution of interfacial intermetallic compound (IMC) in the micro solder joints were investigated. The study found that Cu-Ni cross-interaction and TG played a significant role in IMC growth and morphology/orientation evolution.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
E. Yuzuak
Summary: The substantial study discusses the structural and magnetic phase transitions in the Ni46.8Cu2.5Mn36.5Sn14.3 alloy through AC susceptibility and heat capacity measurements, revealing martensitic and magnetic phase transitions. The addition of Cu in the alloy may contribute to discrepancies in the results, possibly due to hybridization or ferromagnetic band splitting. The findings contribute to the existing literature and show similarities with previous research.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Multidisciplinary
Guojie Wang, Haitao Liu, Kexing Song, Yanjun Zhou, Chu Cheng, Huiwen Guo, Yingang Guo, Jing Tian
Summary: This study explores the optimal aging parameters of Cu-Cr-Ni alloy through the investigation of stress relaxation resistance, strength, microhardness, and conductivity. The strengthening mechanism of stress relaxation is also examined through TEM and EBSD characterization. The results show that the Cu-Cr-Ni alloy achieves peak aging state at 450 degrees C for 1 hour and exhibits excellent properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Kyung Deuk Min, Choong-Jae Lee, Byeong-Uk Hwang, Jae-Ha Kim, Jun-Ho Jang, Seung-Boo Jung
Summary: A novel approach to copper-nickel bonding was investigated using hybrid transient liquid phase sintering (TLPS) method, resulting in the formation of a fast and stable ternary Cu-Ni-Sn intermetallic compound joint. The atomic distribution analysis showed full IMC formation in the hybrid TLPS joint. By simultaneously adding Cu and Ni to SAC305, a stable IMC was formed, leading to the highest bonding strength in the hybrid TLPS joint.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Tiantian Li, Long Xia, Hua Yang, Xinyu Wang, Tao Zhang, Xiaoxiao Huang, Li Xiong, Chunlin Qin, Guangwu Wen
Summary: A novel microwave absorption material, copper-coated tin/reduced graphene oxide (Cu@Sn/rGO) composites with a heterojunction obtained by modifying a Schottky junction, exhibits superior absorption intensity and potential applications in various fields.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Wei Chen, Huawu Xu, Xiaoling Ma, Lin Qi, Zhiming Zhou
Summary: Researchers developed a series of non-precious bimetallic and trimetallic catalysts for the selective hydrogenation of phenylacetylene. The Ni3Cu-Sn/SiO2 catalyst showed the highest selectivity and activity, achieving over 99% phenylacetylene conversion and 94% styrene selectivity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Jia Sun, Huaxin Liang, Shaofu Sun, Juntao Hu, Chunyu Teng, Lingyan Zhao, Hailong Bai
Summary: In comparison to toxic Pb-based solders, the SAC family of alloys have strong reliability and are widely used in the electronics industry. This study investigated the formation mechanism of special microstructural patterns on the surface of SAC305 solder products. It was found that the patterns were Sn-rich and exhibited the characteristic morphology of spinodal decomposition. This discovery provides theoretical support for controlling the microstructure of solder alloys and improving product quality.
Article
Chemistry, Physical
Z. M. Li, Z. L. Cheng, X. N. Li, Y. L. Hu, N. J. Li, Y. H. Zheng, Y. Y. Shao, R. W. Liu, C. Dong
Summary: The study demonstrated that the synergistic effect of Zn and Si can improve the stability and properties of Cu-Ni-Sn alloys. The reinforcing enthalpic interaction between the elements is crucial for the stability enhancement of the alloys, affecting both solution treated and age treated alloys. The modified cluster formula shows promise for the compositional design of high stability Cu-Ni-Sn alloys, providing an effective theoretical and experimental basis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mahsa Namvari, James. J. Rosero-Romo, Ville Laitinen, Aditya Kumthekar, Daniel Salazar, Kari Ullakko
Summary: The effects of Mn substitution and Fe addition on the crystal structure, phase transformation temperatures, and magnetic properties of magnetic shape memory alloys were investigated. Ni49.8Mn27.5Ga21.7Fe1 was found to be a promising composition for designing and manufacturing functional micro-actuators.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Seungju Baek, Gyu-Won Jeong, Jun-Hyuk Son, Min-Su Kim, Han-Bo-Ram Lee, Jungsoo Kim, Yong-Ho Ko
Summary: This study investigated the properties and mechanical performance of transient liquid-phase (TLP) bonding joints formed under different bonding conditions. The shear strength of the joints increased with bonding time, regardless of the bonding structures. The Ni content in the intermetallic compounds correlated with the higher shear strength of joints in one structure than the other.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Physics, Condensed Matter
A. Jbeli, N. Zeiri, N. Yahyaoui, P. Baser, M. Said
Summary: The electronic and optical properties of CdSe/ZnSe semiconductor core/shell quantum dots with hydrogenic donor impurity were investigated theoretically. The perturbation and variational methods were used to calculate the binding energy, photoionization cross-section, polarizability, and diamagnetic susceptibility of the excited impurity under various conditions. A significant stark shift in the binding energy was observed under the influence of an external electric field.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Rahat Batool, Tariq Mahmood, Sajid Mahmood, Abdul Aziz Bhatti
Summary: This study investigates the effects of alkali metal doping (Na, K, Cs) on MAPbI3 through compositional engineering. The results show that doping Na, K, and Cs can improve the phase stability, thermodynamic stability, and optical absorption of MAPbI3.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
N. A. N. M. Nor, M. A. H. Razali, W. H. A. W. K. Annuar, N. N. Alam, F. N. Sazman, N. H. M. Zaki, A. S. Kamisan, A. I. Kamisan, M. H. Samat, A. M. M. Ali, O. H. Hassan, B. U. Haq, M. Z. A. Yahya, M. F. M. Taib
Summary: This study investigates the potential of quaternary chalcogenides semiconductors as thin film solar cell absorbers using density functional theory (DFT) and density functional theory plus Hubbard U (DFT + U) approach. The results show that by applying Hubbard U terms, the electronic band gaps can be accurately predicted, providing valuable insights for finding cost-effective new thin film solar cell materials.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Ashwani Kumar, Anuj Kumar, Mohaseen S. Tamboli, Mohd Ubaidullah, J. Jayarubi, S. K. Tripathi
Summary: In this study, lead-based perovskite solar cells are replaced by bismuth-based perovskite cells to overcome their instability and toxicity. CsBi3I10 perovskite films are fabricated using a modified drop-casting process, and the effects of post-annealing temperature on the morphological, structural, and optical properties are investigated. The photovoltaic performance of the cells without a hole transport layer is also quantitatively evaluated.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yang Gao, Shu-Ming Chen, Shuo Cao, Shang-Zhou Zhang, Philippe Djemia, Qing-Miao Hu
Summary: This study investigates the phase stability, elastic modulus, and hardness of ternary nitride Ti1-xAlxN. It is found that the hardness increases with the Al content x. The cubic B1 structure is more stable for x < about 0.75, while the hexagonal structure (B4) is more stable for x > about 0.75. The composition dependent hardness and phase decomposition contribute to the convex shaped hardness curve of Ti1-xAlxN.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Fengqi Wang, Qinyan Ye, Xulin He, Kun Luo, Xiaolong Ran, Xingping Zheng, Cheng Liao, Ru Li
Summary: This report uses rigorous calculations based on density functional theory to study the piezoelectric and elastic properties of wurtzite aluminum nitride (w-AlN) with single- and co-alloying by Hf (or Zr) and Sc. The research finds that the (HfSc)0.375Al0.625N and (ZrSc)0.375Al0.625N with stable wurtzite phase have a large piezoelectric coefficient d33 of 49.18 pC/N and 47.00 pC/N, respectively. However, the piezoelectric voltage constant g33 and electromechanical coupling constant k233 of HfAlN, ZrAlN, HfScAlN, and ZrScAlN are smaller than that of ScAlN, which is attributed to the large dielectric constant epsilon 33 of Hf (or Zr) alloying samples. Furthermore, the calculations of internal parameter u and bond angle alpha elucidate the brittle-to-ductile transformation in alloying w-AlN crystal structure. Electronic structure calculations show that the bandgap decreases almost linearly with the increase of alloying concentration, and the Hf (or Zr) alloying compounds become n-type semiconductors due to the existing high-charge states.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
S. R. Athul, K. Arun, S. Swathi, U. D. Remya, Andrea Dzubinska, Marian Reiffers, Nagalakshmi Ramamoorthi
Summary: The magnetic and magnetocaloric characteristics of Ho6FeSb2 have been studied. The compound exhibits two second-order ferromagnetic transitions, enabling hysteresis-free magnetocaloric effect across a wide temperature range. The alloy has high relative cooling power and magnetoresistance, making it suitable for hysteresis-free magnetocaloric applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Reena Sharma, Neelam Hooda, Ashima Hooda, Satish Khasa
Summary: A polycrystalline double perovskite La2CoMnO6 sample was prepared and its structural, dielectric and magnetic properties were investigated. The sample exhibited complex structures and magnetic behavior, and showed good conductivity and dielectric performance. Its multi-domain magnetic structure suggests its suitability for memory device applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Shubha Dubey, Jisha A. Abraham, Kumud Dubey, Vineet Sahu, Anchit Modi, G. Pagare, N. K. Gaur
Summary: This study investigates the optoelectronic, thermodynamic, thermoelectric, and mechanical stability properties of RhTiP Half Heusler semiconductors. The results show that RhTiP is a non-magnetic material with confirmed mechanical stability. It is found to be an indirect-bandgap semiconductor with a good Seebeck coefficient. This study suggests that RhTiP has promising applications in the thermoelectric and optoelectronic fields.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Xun Xie, Jiong-Ju Hao, Hong-Wei Yang
Summary: This work presents a multilayer film structure that uses optical resonance to prepare highly efficient and saturated red, green, and blue transmittance colors. Numerical simulations and analysis show that the structure can produce R, G, and B colors with a purity comparable to standard RGB colors, while maintaining efficient transmission efficiency and obtaining a rich variety of structural colors. Additionally, a metallic interlayer is introduced to selectively suppress resonances in the short-wavelength region, improving the purity of the red color. The study also investigates the effect of the incidence angle on color purity and transmission efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yueqiang Zhao
Summary: Solubility property is of great interest in chemical, physical, pharmaceutical, material, and environmental sciences. Understanding the intrinsic reason behind solubility behavior is a fascinating task. The theoretical relation between binary mutual solubility and liquid-liquid interfacial tension has been derived, where the partitioning of solute molecules between two coexisting liquid phases is determined by the transfer free energy per unit segment for a chain-like solute molecule expressed in terms of solute-solvent interfacial tension. This general theory of solubility is in good agreement with experimental results for binary mutual solubility and molar transfer free energy of solute molecules.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Osama K. M. Bashiar, R. E. Kroon, H. C. Swart, R. A. Harris
Summary: ZnO thin films with near-infrared emission were successfully fabricated using pulsed laser deposition under vacuum conditions, without the need for additional gases or implantation methods. The NIR emission was hypothesized to be caused by defects in the ZnO film due to high energy particle impacts on the sample surface.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
O. Stognei, A. Berezutskii, I. Anisimov, A. Deryabin
Summary: The influence of ZrOn matrix stoichiometry on the electrical and magnetoresistive properties of Fe-Zr-O nanocomposites has been studied. It was found that the magnetoresistive effect is not observed in composites with oxygen lack, while composites with oxygen excess show magnetoresistive effect and increased resistivity. Magnetoresistivity in composites with oxygen lack only appears after heat treatment. These results can be explained by the difference in the density of localized states in the oxide matrix of the composites and the ratio between two types of conductivity.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Mehmet Bayirli, Aykut Ilgaz, Orhan Zeybek
Summary: The present study aims to understand the relationship between impedance characteristics and fractal behaviors. By producing neat and carbon nanotube doped composite specimens, the researchers investigated the electrical properties and surface heteromorphology using Nyquist plots and fractal analysis.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
M. I. Khan, Saddam Hussain, Muhamad Saleem, Fatimah Mohammed Alzahrani, Muhammad Siddique, M. S. Hassan, Allah Ditta Khalid, Munawar Iqbal
Summary: The sol-gel method was used to deposit Ti-doped MAPbBr3 films on FTO-glass substrates with different doping ratios (0%, 4%, and 6%). XRD analysis confirmed the cubic structure of all films, and the 4% Ti-doped film exhibited a large grain size, low band gap energy, and high refractive index. Solar cells fabricated using the 4% Ti-doped MAPbBr3 film showed improved performance in terms of current density, open circuit voltage, fill factor, and efficiency.
PHYSICA B-CONDENSED MATTER
(2024)