烧结时间对羟基磷灰石靶的影响

连铸, 2016, 33(5): 610-613. doi: 10.3969/j.issn.1007-5461.2016.05.016

烧结时间对羟基磷灰石靶的影响

孙伟 ^1, , 罗乐 ^2, , 赵读亮 ^3, , 严中亚 ^4, , 程光存 ^5, , 方晓东 ^6,

1.合肥工业大学电子科学与应用物理学院,安徽合肥,230009

2.合肥工业大学电子科学与应用物理学院,安徽合肥,230009

3.合肥工业大学电子科学与应用物理学院, 安徽合肥 230009;中国科学院安徽光学精密机械研究所, 安徽合肥 230031

4.安徽省立医院胸心外科,安徽合肥,230001

5.安徽省立医院胸心外科,安徽合肥,230001

6.中国科学院安徽光学精密机械研究所,安徽合肥,230031

基金项目: Supported by Natural Science Foundation of Anhui Province(安徽省自然科学基金,1308085MF104)

关键词：材料 , 羟基磷灰石 , 烧结时间 , 钙磷比 , 生物相容性

Influence of sintering time on hydroxyapatite target

Keywords： materials , hydroxyapatite , sintering time , ratio of Ca to P , biocompatibility

为了研究烧结时间对羟基磷灰石靶的影响,将纯度为99％的羟基磷灰石粉末压制成圆盘形靶,并在氩气中保持800℃恒温分别烧结12、16、20、24 h.用X射线衍射仪(XRD)和X射线光电子能谱仪(XPS)检测不同烧结时间的羟基磷灰石靶.结果表明:烧结时间对羟基磷灰石靶的结晶度和组成元素种类没有明显影响,但对钙磷比值有显著影响.烧结时间从12 h增加到20 h,Ca/P比值增大;从20 h增加到24 h,Ca/P比值反而减小.20 h、800℃高温烧结的羟基磷灰石靶具有更好的生物相容性和稳定性.

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