...硬质合金;稀土; La; Ce;表面富集;球形合金粉末[gap=1928]Key words: cemented carbide; rare earth; La; Ce; surface enrichment; alloyed spherical powder...
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元素表面富集 Element surface enrichment
The surface enrichment phenomenon occurs in the blend and PVDF with lower free energy in the blend take up more surface positions.
PVDF在共混体系中可以发生明显的表面富集现象,表面自由能低的PVDF在表面相的含量大于体相。
参考来源 - 聚偏氟乙烯挤出及改性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
分析了各因素对碱金属的析出以及在床料颗粒表面富集的影响规律。
This article pays some attention on the behavior characteristic of alkali in biomass combustion process.
发现纳米颗粒能够在熔融的聚合物中迁移，并在燃烧的聚合物表面富集，形成阻隔层。
It is found that clay particles can migrate to the combusting polymer surfaces and form a retardant layer.
结论蛋白质在喷雾干燥过程中的稳定性受载体结晶、表面富集和构象变化等多种机制影响。
CONCLUSION the stability of the protein during spray drying was affected by crystallization, surface adsorption and conformation transformation.
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