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of NiCrSiB alloy powder and tantalum (Ta) powder was used as laser clad material to improve abrasive wear resistance of the Ni-based coating. The microstructure and wear resistance of the coating were......
comprehensively investigated via this method. Dense BxC-TaB2 ceramics with refined microstructure were obtained from submicro tantalum carbide and boron powder mixtures at 1800?C/50 MPa/5 min by spark plasma......
Jing, YANG Hai-lin, RUAN Jian-ming, JIE Yun-feng (State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China) Abstract: Trabecular metal (Porous tantalum) was prepared... of 313-622 μm, which have a similar three-dimensional connected hole morphology to cancellous bone, and with no other elements on the sample. The mechanical performance shows that the compressive......
and SEM. The results show that Ta organic solvent forms intermediates, namely tantalum oxide fluoride (TaO2F) and Ta2O5, and Ta finally turns into TaC after 1500℃ heat treated. The calculated thermodynamic... and dislocation structures in tantalum carbide: deformation at low and intermediate homologous temperatures[J]. Acta Metal Mater, 1994, 42(7): 2291-2301. [5]Chen Y J, Li J B, Wei Q M, et al. Preparation......
of Ta-rich carbides aggravates density inversion since it would delete tantalum in the liquid. On the other hand, the precipitation and coalescence of carbides in the interdendritic region lowers... rhenium, the segregation coefficients of the elements alter insignificantly with the addition of carbon. The segregation behavior of rhenium, tungsten and tantalum become more severe with boron......
University, Changsha 410083, China) Abstract: Porous ruthenium oxide coatings as cathode material of hybrid capacitor were prepared on tantalum subs-trate by electrodeposition method. Change... of tantalum substrate (a) and fresh RuO2 thin film (b) heat-treated at 100℃ with scanning speed of 50mV/s in 0.5mol/L H2SO4 3 结论 1) 采用直流电沉积的方法制备了钽基氧化钌纳米多孔涂层. 2) 涂层中钌化合物以非晶态形式存在, 涂层具有纳米孔隙结构......
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that the tantalum bone plates with porous structure are also emerging as a new fracture internal fixation implants.The reduction of the stress shielding is verified to be useful to accelerate bone fracture......
Fe3O4 films prepared by DC magnetron reactive sputtering with a tantalum(Ta) buffer layer was investigated. Primary emphasis is placed on the structural impact on its magnetic properties. The experimental... been observed, despite the predicted of high MR values[1,6,7]. The reasons have been in part explained by the coexistence of small amounts of the other phases of iron oxide, such as FeO and Fe2O3[8......
. The specific capacity is smaller, and the loss is higher than that of anodes prepared by two other processes. The particle size of production of high energy ball milling procedure is fine, and its... capacity is 69.5mF·V/g, the loss is 11.25%, leakage current (K) is 1.8×10-4 μA/(μF·V), and its electrical properties are better than those of the national standard of FTa16-300 tantalum powder for capacitor......
