Various Ca/P ratios of thin calcium phosphate films
Various Ca/P ratios of thin calcium phosphate films
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DOI：
10.1016/s0928-4931(02)00107-8
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发表时间：
2002-10-01
期刊：
影响因子：
--
通讯作者：
Kim, SR
中科院分区：
文献类型：
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作者：
Lee, IS;Whang, CN;Kim, SR
通过电子束蒸发在有或没有同时Ar离子轰击的情况下形成不同Ca/P比例的磷酸钙膜。通过使用具有不同Ca/P比率并添加CaO的蒸发剂或增加离子束电流来控制膜的Ca/P比率。在没有离子束轰击的情况下，添加 25 wt.% CaO 后，薄膜的 Ca/P 比从 1.12 增加到 1.71。还观察到离子束辅助的效果，并且该比率随着离子束电流的增加而增加。薄膜的Ca/P比与热处理后形成的结构和溶解行为密切相关。薄膜的平均结合强度为64.8 MPa，远高于等离子喷涂羟基磷灰石涂层。磷酸钙膜对成骨细胞的附着和增殖显示出有益的作用。 (C) 2002 Elsevier Science B.V. 保留所有权利。
Various Ca/P ratios of calcium phosphate films were formed by electron beam evaporation with and without simultaneous Ar ion bombardment. The Ca/P ratio of film was controlled by either using the evaporants having the different ratio of Ca/P with addition of CaO or increases in ion beam current. Without ion beam bombardments, the Ca/P ratio of film increased from 1.12 to 1.71 with addition of 25 wt.% CaO. The effect of ion beam assistance was also observed, and the ratio increased with ion beam current. The Ca/P ratio of the film was intimately related to the structure formed after heat treatment and the dissolution behavior. The films had the average bonding strength of 64.8 MPa that was much higher than the plasma sprayed hydroxyapatite coating layer. Calcium phosphate film showed beneficial effects on osteoblast cell attachment and proliferation. (C) 2002 Elsevier Science B.V. All rights reserved.