Fabrication and properties of carbon nanotubes reinforced Fe/hydroxyapatite composites by in situ chemical vapor deposition

被引：32

作者：

Li, Haipeng ^{[1
,2
]}

Zhao, Naiqin ^{[1
,3
]}

Liu, Yuan ^{[1
]}

Liang, Chunyong ^{[2
]}

Shi, Chunsheng ^{[1
]}

Du, Xiwen ^{[1
]}

Li, Jiajun ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

[2] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300132, Peoples R China

[3] Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2008年 / 39卷 / 07期

关键词：

ceramic-matrix composites (CMCs); electron microscopy; chemical vapor deposition (CVD);

D O I：

10.1016/j.compositesa.2008.04.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon nanotubes (CNTs) (Fe)/hydroxyapatite (HA) composite powder with CNTs homogeneously dispersed was successfully prepared by a novel process, which involved producing Fe2O3/HA precursor, calcination in NZ atmosphere and reduction in hydrogen of the Fe2O3/HA precursor to yield Fe/HA catalyst, and in situ synthesis of nanotubes by chemical vapor deposition over Fe/HA catalyst. These excellent CNTs(Fe)/HA composite powder was then employed to produce CNTs(Fe)/HA bulk composites. The CNTs(Fe)/HA bulk nanocomposites produced by pressing and sintering of the CNTs(Fe)/HA composite powder presented that the CNTs distributed homogenously and bonded strongly with the HA matrix. The effective enhancement of mechanical properties of the composites was indicated by a 226% increase in fracture toughness and 49% increase in flexural strength compared to monolithic HA bulk. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1128 / 1132

页数：5

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