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电化学研磨技术在洁净不锈钢产品领域中的应用
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作者 王琪 《表面工程与再制造》 2023年第2期23-26,共4页
不锈钢材料以其优并的物理化学性能广泛应用于生物创药设备、医疗器城、真空太阳能、泛车导体、核电等高端制造领域。随着高端制造业的适基发展,对洁净不伤钢,特别是题洁净不锈钢的表面质量和机注能提出了更加严苛的要求。电化学研膚技... 不锈钢材料以其优并的物理化学性能广泛应用于生物创药设备、医疗器城、真空太阳能、泛车导体、核电等高端制造领域。随着高端制造业的适基发展,对洁净不伤钢,特别是题洁净不锈钢的表面质量和机注能提出了更加严苛的要求。电化学研膚技术不仅能提高不锈钢材料的洁净度,降低表而粒粒度,还可以极大地提升材料的耐腐蚀性,因而广泛地用于不锈钢产品的表面处理中。针对不锈钢材料在洁净领域中的电化学研鹿技术的应用和质量检验,进行综速说明,旨在为从事洁净不锈锅产品教面处理的技术人页提供经验参考。 展开更多
关键词 活净不锈钢 表面处理 电化学研密 质量检验标准
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Quantum chemical study on excited states and charge transfer of oxazolo[4,5-b]-pyridine derivatives
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作者 HE RongXing YUAN YanJie +2 位作者 SHEN Wei LI Ming YAO Li 《Science China Chemistry》 SCIE EI CAS 2012年第10期2186-2196,共11页
The excitedstate intramolecular charge transfer of four oxazolo[4,5-b]pyridine derivatives with different electron donating and electron withdrawing groups was investigated using the time-dependent density functional ... The excitedstate intramolecular charge transfer of four oxazolo[4,5-b]pyridine derivatives with different electron donating and electron withdrawing groups was investigated using the time-dependent density functional theory. The vertical excitation energies and the electronic structures were explored. Their distinct properties of absorption and fluorescence spectra in solvent phase were explained according to the electronic coupling matrix elements calculated by the Mulliken-Hush theory. The sub-stituent on the oxazolo[4,5-b]pyridines will remarkably change their spectra properties and increase the first excited-state dipole moments. The effect of protonation on the absorption and fluorescence spectra was also investigated systematically. Our study suggests that the present method is feasible to explain charge transfer excitation and predict the properties of absorption and emission spectra in the studied systems. 展开更多
关键词 oxazolo[4 5-b]pyridine spectral properties excited-state charge transfer PROTONATION DFT calculations
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