The research of gibbs free energy , critical nucleus radius , nucleation rate of homogeneous nucleation " and heterogeneous nucleation shows that the main reason decreasing solution stability is heterogeneous nucleation 通過分析非均相成核與均相成核的臨界成核半徑、臨界晶核形成功、成核速率等,說明降低溶液穩(wěn)定性的主要因素是非均相成核。
We consider the reaction product of treated uranium surface is mainly composed of uo2 , uc ( or ucxoy ) and free carbon . it may be the mainly reason for surface layer containing uc ( or ucxoy ) to improve corrosion resistance . at the same time the change of gibbs free energies of reaction product of supercritical carbon dioxide with uranium has been computed 通過aes分析知co _ 2長時(shí)間處理金屬鈾后其表面膜層中確實(shí)引入了一定量的碳,同時(shí)對高碳鈾和低碳鈾抗腐蝕性能的對比可說明金屬鈾表面膜層中碳的存在形式對鈾試樣抗腐蝕性能有很大的影響。