| 查看: 387 | 回复: 0 | |||
[求助]
求翻译啊，拜托，拜托
|
|
the soaking time in SBF: (a) For soaking periods up to 9 days, two zones with different morphology could be observed on the biphasic material surface. After one day, SEM micrographs did not show any kind of coating. For soaking times between 3 and 9 days two different zones could be observed by SEM micrographs. EDS analyses were carried out on 10 different zones with similar look and 22 mm16 mm area, confirming that one of them (zone II) was composed by Ca and P, whereas the other one (zone I) was composed by the initial elements (Ca, Fe, Si, P). Fig. 6 shows the SEM micrographs of both zones, including the EDS results. The surface in contact with SBF was heterogeneous, with grains with composition SiO2.CaO.P2O5 (sol–gel-derived glass) and grains with composition SiO2.CaO.Fe2O3 (melt-derived glass).Their crystallinity and particle sizes were also different. On some zones of the biphasic material surface, grains from the melt-derived glass (FeG) emerged; their crystallinity, combined with the absence of P in their composition, contributed to get lower kinetics of the bioactive process. These zones corresponded with type I in Fig. 6. They show bioactive behaviour with very slow kinetics. For this material it is necessary about one month to reach a bioactivity similar to the obtained for the biphasic material soaked only one day in SBF [19]. Type II would correspond, for the first soaking times, to |
回复此楼» 猜你喜欢
职称评审没过，求安慰
已经有41人回复
-
回收溶剂求助
已经有7人回复
-
硝基苯如何除去
已经有3人回复
-
A期刊撤稿
已经有4人回复
-
垃圾破二本职称评审标准
已经有17人回复
-
投稿Elsevier的Neoplasia杂志，到最后选publishing options时页面空白，不能完成投稿
已经有22人回复
-
EST投稿状态问题
已经有7人回复
-
毕业后当辅导员了，天天各种学生超烦
已经有4人回复
-
求助文献
已经有3人回复
-
三无产品还有机会吗
已经有6人回复