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Entropy-Modulated Oxide-Metal Catalyst Architectures for Direct Ammonia Protonic Ceramic Fuel Cells. [PDF]
Nanomicro LettKim D +12 more
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Miniaturized dual-band MIMO antenna with high gain and isolation for mm-wave applications. [PDF]
Sci RepGayathri R +3 more
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Prediction of the effects of surface-active elements on gas-liquid metal kinetics
Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science, 1982Equations have been developed for calculating the fraction of free surface, 1-θT, when two or more surface-active elements (S, O,Se,etc.) are present in liquid iron or its alloys. It is shown that equations of the form k =A Vl-θT -B well describe the essentially linear plots which represent the variation of rate constant k with ...
C. H. Hua, N. A. D. Parlee
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Role of surface-active elements during keyhole-mode laser welding
Journal Physics D: Applied Physics, 2011During high power density laser welding of mild steel, the keyhole depth, liquid metal flow, weld geometry and weld integrity are affected by base-metal sulfur content and oxygen (O2) present in the atmosphere or shielding gas. The role of these surface-active elements during keyhole-mode laser welding of steels is not well understood.
Tarasankar DebRoy
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Effects of Interaction Between Surface Active Elements on the Surface Tension of Iron
Canadian Metallurgical Quarterly, 1982AbstractSurface tension data at 1650°C have been measured for the Fe + S + O ternary system and the two binary systems, Fe + O and Fe + S using the levitated drop technique. The results indicate that the reductions in surface tension due to oxygen and to sulphur are essentially additive in the ternary system.
B. J. Keene +3 more
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