The research and development of RE magnets in China were briefly reviewed. The research achievements of RE magnets reach international level. The intermetallic nitrides with ThMn12-type structure of RFe series which p...The research and development of RE magnets in China were briefly reviewed. The research achievements of RE magnets reach international level. The intermetallic nitrides with ThMn12-type structure of RFe series which possess Chinese proprietary were prepared. The output of RE magnets has ranked second in the world. The production of RE magnets will be steadily expanding with the expiration of NdFeB patent in 2003. Some related data were also presented.展开更多
La Ni based alloy powders used for Ni metal hydride batteries were synthesized by mechanical alloying starting from the elements. The electrical capacity obtained was up to 320 mAh/g. In addition, the comparison in ...La Ni based alloy powders used for Ni metal hydride batteries were synthesized by mechanical alloying starting from the elements. The electrical capacity obtained was up to 320 mAh/g. In addition, the comparison in the microstructure and electrochemical properties was made between the alloy powders produced by mechanical alloying and by melting. It was shown that mechanical alloying is promising in the preparation of practical RE hydrogen storage electrode materials.展开更多
文摘The research and development of RE magnets in China were briefly reviewed. The research achievements of RE magnets reach international level. The intermetallic nitrides with ThMn12-type structure of RFe series which possess Chinese proprietary were prepared. The output of RE magnets has ranked second in the world. The production of RE magnets will be steadily expanding with the expiration of NdFeB patent in 2003. Some related data were also presented.
文摘La Ni based alloy powders used for Ni metal hydride batteries were synthesized by mechanical alloying starting from the elements. The electrical capacity obtained was up to 320 mAh/g. In addition, the comparison in the microstructure and electrochemical properties was made between the alloy powders produced by mechanical alloying and by melting. It was shown that mechanical alloying is promising in the preparation of practical RE hydrogen storage electrode materials.
