Strong bonding strength between HA and (NH4)2S2O8-treated carbon/carbon composite by hydrothermal treatment and induction heating.
Carbon/carbon composite with hydroxyapatite (HA) coating is an attractive material in the dental and orthopedic fields, but the reported bonding strength between them was very poor. In this study, a compact crystalline HA coating on (NH(4))(2)S(2)O(8)-treated C/C substrate about 10 microm in width was obtained by hydrothermal treatment and induction heating. The microstructure, composition and morphologies of the as-prepared coatings were identified by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. A strong shear strength averaging 74.2 MPa between C/C substrate and HA was achieved and adhesion failures were observed more frequently than cohesion failures. The coating adhesion measured using a scratch test was 23 N and the reasons for this are discussed.
Xiong
Xin-bo
XB
Shen Zhen Key Laboratory of Special Functional Materials, Department of Materials Science and Engineering, Shen Zhen University, Shen Zhen 518060, China. xxbszdx@szu.edu.cn
Zeng
Xie-rong
XR
Zou
Chun-li
CL
Zhou
Ji-Zhao
JZ
D000645:Ammonium Sulfate / Q000737:chemistry*; D002130:Calcium Phosphates / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D003460:Crystallization; D017886:Durapatite / Q000737:chemistry*; D006358:Hot Temperature; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
D002130:Calcium Phosphates; D020099:Coated Materials, Biocompatible; D014867:Water; C031276:ammonium peroxydisulfate; C485838:calcium phosphate, monobasic, anhydrous; D002244:Carbon; D017886:Durapatite; D000645:Ammonium Sulfate