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Pure Ti plate surfaces are micro-ablated by femtosecond lasers in the ambience of hydroxyapatite suspension. It is found that three-stage hierarchical surface structures are produced with various laser energies. When the laser energy is 150 μJ, a lava-like structure with a distribution of nanoholes is dispersed evenly on the laser ablated surface. While in the case of 300 μ J, the grooves-and-islands micro-patterns covered with nanoparticles are generated on the surface. Remarkably, Ca/P based substances are revealed to firmly deposit on the micro-structured surfaces. More phosphate growth is seen for the higher laser energy. Discussions suggest that the additional elements deposition could be attributed to the chemical reaction of plasma related ions in the suspension and their subsequent crystallisation on the fresh surfaces of Ti plate due to the femtosecond laser ablation.  相似文献   
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人们常说:主角好唱,配角难当。这话不无道理。在实际工作中,一个班子的正职与副职有着密切合作、不可分割的特殊关系。正职是一个班子的核心,具有统帅全局的权力和责任。而副职主要是协助配合正职完成自己所分管的工作和任务。要配合好正职工  相似文献   
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