Results 11 to 20 of about 9,131 (119)

Cluster‐Driven Strengthening and Oxide Stripes‐Induced Embrittlement in Internally Oxidized AgMg Alloys

Rare Metals, EarlyView.
ABSTRACT Internal oxidation has been identified as an effective method for enhancing the strength of AgMg alloys. However, the concurrent occurrence of embrittlement remains inadequately understood, thus limiting their broader application. This study investigates the oxidation behavior of AgMg alloys with Mg concentrations ranging from 1 at% to 7 at ...
Hai‐Cheng Zhu, Shao‐Hong Liu, Li‐Min Zhou, Hao Cui, Hong‐Ying Pei, Wen‐Yan Zhou, Man‐Men Liu, Hai‐Gang Dong, Ming Wen, Li Chen, Wei Wang, Song Li, Liang Zuo   +12 more
wiley   +1 more source

Fabrication‐Driven Oxidation Pathways in Y/Hf‐Modified High‐Entropy Alloys: From Elemental Segregation to Oxide Homogeneity

Rare Metals, EarlyView.
ABSTRACT This study elucidates the oxidation mechanisms governing Y/Hf‐doped AlCoCrFeNiTi high‐entropy alloys (HEAs) and reveals the pivotal role of fabrication processes in dictating high‐temperature oxidation behavior. We demonstrate that casting and spark plasma sintering (SPS) promote Y/Hf segregation, resulting in heterogeneous oxide formation and
Huaqing Yi, Jiapeng Zheng, Jiawen Zhang, Yi Yang, Binbin He, Wenjun Lu   +5 more
wiley   +1 more source

Double‐Hollow Porous Heterostructured CoP/Cu3P Microspheres for High‐Performance Asymmetric Supercapacitors

Rare Metals, EarlyView.
ABSTRACT CoP has become a research hotspot for supercapacitor electrode materials because of its considerable theoretical capacitance and metalloid nature, but its commercial application remains hampered by structural instability and sluggish ion kinetics.
Gaoliang Wang, Pu Hu, Weifeng Liu, Tao Jiang, Yamin Feng, Zhuang Ma, Liangming Zheng, Chaoqun Shang, Junmin Nan   +8 more
wiley   +1 more source

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

Rare Metals, EarlyView.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu, Jiaqi Li, Haonan Han, Caixu Wang, Tong Ran, Xiaoli Zhao, Tingyue Gu, Lin Wu, Dake Xu, Hangzhou Zhang   +9 more
wiley   +1 more source

Electrospun Carbon Nanofiber‐Based Multifunctional Electrocatalysts for Zinc‐Air Batteries and Overall Water Splitting: Fabrication, Progress, and Perspective

Rare Metals, EarlyView.
ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai, Wen‐Jun Niu, Bing‐Xin Yu, Li‐Yang Xu, Fu‐Ming Wang   +4 more
wiley   +1 more source

Coalescence‐Ripening Mechanism of γ′−Ni3(Al, Ti) During Long‐Term/High‐Temperature Operation of Ni‐Based Superalloy Discs

Rare Metals, EarlyView.
ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang, Yongquan Ning, Bingchao Xie, Xiaoguang Fan, Mei Zhan, Mingwang Fu   +5 more
wiley   +1 more source

On the Damage Tolerance of Diffusion Bonded Titanium–Aluminum Phase Biomimetic Composites

Rare Metals, EarlyView.
ABSTRACT The biomimetic design principles of natural structures involve the strategic integration of stiff and compliant phases to synergistically enhance strength and toughness. Its evolutionary refined natural armor, characterized by a specialized microarchitecture, enables superior damage tolerance.
Shuai Tong, Junming Xiong, Zhichao Ma, Jize Liu, Jiazheng Sun, Guoxiang Shen, Shichao Niu, Zhe Wang, Hongwei Zhao, Luquan Ren, Chuliang Yan   +10 more
wiley   +1 more source

Bimetallic Mo/Fe‐Doped CoP2 Nanoleaf Array as a Bifunctional Electrocatalyst for Overall Water Splitting

Rare Metals, EarlyView.
ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng, Hang Cong, Nan Jiang, Jie Zhao, Qiang Wang, Wenjie Yu, Huanwen Wang   +6 more
wiley   +1 more source

Broad‐Spectral Response Lead Halide Perovskite Solar Cells Through Integration of Multifunctional Organic Bulk‐Heterojunction and Quantum‐Cutting Downconversion Materials

Rare Metals, EarlyView.
ABSTRACT Expanding near‐infrared (NIR) spectral response and utilizing ultraviolet (UV) photons are effective strategies for enhancing the power conversion efficiency (PCE) of lead halide perovskite solar cells (PSCs). However, the range of NIR spectral response extension and the utilization of UV light for devices are not enough, and the loss of ...
Li He, Sheng Ma, Yusong Zhou, Haotian Zhang, Dezhao Zhang, Hongzhen Su, Lei Wang, Xinjun Li, Hong Liu, Wenzhong Shen   +9 more
wiley   +1 more source

Regulating TGO Nucleation and Growth of MCrAlX Coatings via Femtosecond Laser Remelting: The Role of Reactive Elements in the Oxidation Resistance

Rare Metals, EarlyView.
ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian, Xiangcheng Li, Yinqun Hua, Xiaofeng Zhang, Yong Feng, Xiaonan Wang, Szymon Tofil, Jie Cai   +7 more
wiley   +1 more source