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论文类型：期刊论文

发表时间：2009-09-15

发表刊物：9th International Conference on Computer Simulation of Radiation Effects in Solids

收录刊物：SCIE、EI、CPCI-S、Scopus

卷号：267

期号：18

页面范围：3140-3143

ISSN号：0168-583X

关键字：High-intensity pulsed ion beam; Ceramic; Temperature field; Ablation modification

摘要：Based on the surface microstructure of EB-PVD ZrO(2) coatings, the ablation effects of a novel method for ceramic modification technique by high-intensity pulsed ion beam irradiation have been studied numerically. Taking the nonlinear depositing energy of ions in the coatings calculated by Monte Carlo methods as the thermal source term in heat transfer equations, the surface melting process and the evolution of temperature of ZrO(2) specimens induced by HIPIB irradiation were obtained. About 1 mu m in thickness of ZrO(2) ceramic was re-solidified after melting, a dense modification coat layer formed, and near the top surface an even denser layer formed. During the calculation the latent heat of ZrO(2) is introduced to consider the additional heat due to the phase change between solid-liquid and liquid-gas states. The numerical result about the ablation melted thickness of surface layer is in reasonable agreement with those measured by HIPIB irradiation experiments. (C) 2009 Elsevier B.V. All rights reserved.