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With the increasing of the sintered NdFeB magnet application, there is a great deal of the demand of Nd, consequently the price of Nd is rising. Therefore, it is necessary to produce a novel sintered NdFeB magnet at low costs. In this paper, the dual-main-phase CeNdFeB magnets were prepared. The corrosion potential of Ce is −2.48V, which is lower than that of Nd (−2.41V) [1]. But Ce is much cheaper...
As device dimensions shrunk to the 14 nm node and beyond, damascene Cu/low-k high aspect ratio of interconnect schemes face extreme difficulties in achieving defect-free Cu gap-fill. The CVD Co was implemented to improve Copper interconnect performance which was deposited between the PVD Ta(N) liner barrier and the Cu seed layer to improve copper to barrier adhesion and copper gap fill. Therefore,...
High media roughness associated with perpendicular recording introduces the phenomenon of widely separated single needle-like corrosion growths after temperature-humidity stress. Previous generation longitudinal recording media demonstrated clusters of corrosion growths around a central media defect, which were detectable by reflected light. However, because of the isolated nature of this new type...
A successful accelerated corrosion test method, the wick test, has been developed to simulate the corrosion process of semi-conductively glazed material in actual operation. The wick test is efficient and reproduces the characteristics of semi-conducting glaze corrosion that can be expected to occur under operating conditions. Through wick test, some of the parameters affecting the deterioration rate...
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