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本文报道氧化钼在远离平衡的无序系统中气固相变过程。实验结果除了薄片状氧化钼晶体外,还形成了由晶须凝聚组成的各种形态的二维分形结构。对实验所得的分形结构,用非平衡态和不可逆过程的热力学理论进行了讨论,并提出核晶凝聚模型。Tre vapor-solid phase transition of the motybdenum oxide was investigated in the stochastic nonlinear system which was in far from equilibrium state. Some thin molybdena crystals and various two-dimensional fractal structures consisted of the molybdena whiskers were ob-served. The possible mechanism of the fractal structures is discussed in terms of nonequilibrium thermodynamics of irreversible processes and a nucleation aggregation model is proposed.
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