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Effect of strontium (Sr) addition and electromagnetic stirring on the microstructure of AZ91 alloy and refinement mechanism were investigated. It was found that Sr addition ranging from 0.1 to 0.3wt.% caused refinement of as-cast microstructure, but did not form any new phases. Combined strontium alloying and electromagnetic stirring significantly decreased the grain size, changed the morphologies...
Experimental results are presented for a WSi2/TiN compound-gate MOSFET with a near-midgap work function ranging from 4.63 to 4.75 eV and low resistivity. Sheet resistances of the compound gate and the conventional n+ gate with and without the interconnection layer are studied, and it is shown that the compound gate materials are an adequate interconnection layer. When positive bias is applied to the...
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