The behavior of hydrogen absorption and release in hydrogen decrepitation (HD) process of Nd-Fe-B alloys were investigated. The results reveal that the reactivi
<正>On January 30, 2013 the Petrochemical Research Institute of PetroChina has completed the experiments for two-stage hydrogenation of pyrolysis C 5 fraction a
The preparation of the single domain GBCO bulk with 25 mm in diameter in air was reported. In order to avoid the Gd ions substituted the Ba sites, different BaC