Effect of hydroxyapatite matrix on the growth of carbon nanotubes via a CVD system

摘要：

This paper reports the fabrication of carbon nanotubes (CNTs) /hydroxyapatite (HA) composites via in-situ process in a chemical vapor deposition (CVD) system and the effect of HA matrix on the growth of CNTs. When the HA matrix is fabricated by a chemical coprecipitation method, deficient HA (D-HA) crystals in nano size have been observed in these composites. There are about 20％ weight percent of multi-walled CNTs with a mean diameter of 40~60 nm. When the matrix used as catalyst for CNTs growth without HA in the same way, no CNTs but solid carbon fibers in submicrometer scale have been produced in these composites. Only Fe and MgO crystals can be observed in these composites. When the HA matrix is fabricated by a physical mixing with the presence of D-HA crystals, hollow CNTs with the diameter of 180~210 nm are also produced in these composites. Fe and MgO besides P2O5, D-HA and C crystals can be observed in the composites.

关键词： Hydroxyapatite Carbon Nanotubes Chemical Vapor Deposition (CVD) Composite

作者: XiaoYing Lu BaoHua Wu YuJie Liu Tian Qiu Jie Weng

作者单位: Key lab of advanced technologies of materials (ministry of education of china), school of materialss Key lab of advanced technologies of materials (ministry of education of china), school of materialss Key lab of advanced technologies of materials (ministry of education of china), school of materials

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 335-339

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）