TY - JOUR
T1 - Texture development of hydroxyapatite ceramics by colloidal processing in a high magnetic field followed by sintering
AU - Sakka, Yoshio
AU - Takahashi, Kazuya
AU - Suzuki, Tohru S.
AU - Ito, Shigeru
AU - Matsuda, Nobuyuki
N1 - Funding Information:
This study was financially supported in part by the Budget for Nuclear Research and grant-in-aid for Scientific Research of the Japanese Ministry of Education, Culture, Sports, Science and Technology.
PY - 2008/2/25
Y1 - 2008/2/25
N2 - Hydroxyapatite (HAP, Ca10(PO4)6(OH)2) is a main component in the human body and teeth, and a specific crystal orientation is required because of the different properties for each crystal plane. In this study, two types of hydroxyapatite powders were used for the fabrication of a textured HAP. The effects of the processing parameters on the orientation, such as de-agglomeration by ultrasonication and milling procedures, applied magnetic field and sintering temperatures, were examined. Using the de-agglomerated particle by a milling procedure, it is possible to control the particle orientation, but when using heavily agglomerated particles, it was impossible to control the particle orientation by applying a high magnetic field. Highly textured HAP can be fabricated by slip casting using a well-dispersed suspension in a high magnetic field followed by sintering above 1373 K.
AB - Hydroxyapatite (HAP, Ca10(PO4)6(OH)2) is a main component in the human body and teeth, and a specific crystal orientation is required because of the different properties for each crystal plane. In this study, two types of hydroxyapatite powders were used for the fabrication of a textured HAP. The effects of the processing parameters on the orientation, such as de-agglomeration by ultrasonication and milling procedures, applied magnetic field and sintering temperatures, were examined. Using the de-agglomerated particle by a milling procedure, it is possible to control the particle orientation, but when using heavily agglomerated particles, it was impossible to control the particle orientation by applying a high magnetic field. Highly textured HAP can be fabricated by slip casting using a well-dispersed suspension in a high magnetic field followed by sintering above 1373 K.
KW - Colloidal processing
KW - Dispersion
KW - Hydroxyapatite
KW - Magnetic field
KW - Texture
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U2 - 10.1016/j.msea.2006.12.143
DO - 10.1016/j.msea.2006.12.143
M3 - Article
AN - SCOPUS:38149039119
SN - 0921-5093
VL - 475
SP - 27
EP - 33
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 1-2
ER -