Results 61 to 70 of about 19,472 (303)
Advanced Functional Materials, EarlyView.Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler +4 more
wiley +1 more source
B4C-Al Composites Fabricated by the Powder Metallurgy Process
Applied Sciences, 2017 Due to the large thermal neutron absorption cross section of 10B, B4C-Al composites have been used as neutron absorbing materials in nuclear industries, which can offer not only good neutron shielding performance but also excellent mechanical properties.
Ling Zhang +5 more
doaj +1 more source
Ammonia synthesis over multi-promoted iron catalysts obtained by high-energy ball-milling
, 1999 The feasibility of producing ammonia synthesis catalysts from high-energy ball-milling of a simple mixture of the constituent oxides has been investigated.
Clausen, B.S. +4 more
core +1 more source
Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
wiley +1 more source
Evaluation of mechanical alloying to obtain Cu-Al-Nb shape memory alloy
Materials Research, 2005 The technical viability of preparing a Cu-Al-Nb shape memory alloy by high energy ball milling in a planetary mill has been evaluated. The alloy Cu-13Al-2Nb (wt. (%)) was prepared by mixing pure elemental powders. A ball-to-powder weight ratio of 6:1 and
Maria do Carmo Amorim da Silva +1 more
doaj +1 more source
High-energy ball-milling-induced non-equilibrium phase transformations
, 1997 α-Fe powder has been ball milled in an anhydrous atmosphere at two different temperatures (room temperature and 200°C). The composition and structure of milled samples were investigated using X-ray diffraction, Mössbauer spectroscopy, combustion analysis,
Ying (Ian) Chen (13074204) +1 more
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Rapid Synthesis of Molybdenum Disilicide by High-Energy Ball Milling
, 2011 The product formation of Mo-66.7at.%Si powders mixture during mechanical alloying using a high-energy vibratory type ball-milling machine was investigated by X-ray diffractometer (XRD).
Xiao Hong Wang +6 more
core +1 more source
Advanced Materials, EarlyView.Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim +17 more
wiley +1 more source
Effect of Ball Milling Parameters on the Refinement of Tungsten Powder
Metals, 2018 The high-energy ball milling method was adopted to explore the influence of ball milling parameters, such as milling speed and additive amounts of process control agent (PCA) on tungsten powder. The morphology and microstructure of tungsten powder in the
Zaoming Wu +6 more
doaj +1 more source
, 2015 A surfactant-assisted high-energy ball milling technique was employed to synthesize Nd2Fe14B/alpha-Fe nanoparticles and nanoflakes from melt-spun nanocrystalline powders. The microstructure evolution in ball milling process was investigated.
Tang, Xin +3 more
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