TY - GEN
T1 - Pack cementation treatment of titanium using tetracalcium phosphate powder for biomedical applications
AU - Ueda, Kyosuke
AU - Suto, Hajime
AU - Nakaie, Kaori
AU - Narushima, Takayuki
PY - 2010
Y1 - 2010
N2 - The surface modification of commercially pure titanium (CP Ti) by pack cementation treatment at 973 K using tetracalcium phosphate (Ca 4(PO4)2O, TTCP) slurry was investigated. An HAp phase and a CaTiO3 phase were observed on the reaction layer of the CP Ti substrate after pack cementation treatment at 973 K for 86.4 ks. TTCP powder decomposed to HAp and CaO, and CaO reacted with TiO2 to form CaTiO3. The reaction layer on the CP Ti substrate consisted of inner and outer layers and the particles were in the outer reaction layer. The pores observed on the reaction layer were formed by the detachment of particles from the outer layer. The bonding strength of the reaction layer was 68.1 MPa. Apatite completely covered the surface of the pack-cementation-treated CP Ti after immersion in Kokubo solution for 21.6 ks; such rapid apatite formation suggests that pack cementation treatment improves the biocompatibility of titanium.
AB - The surface modification of commercially pure titanium (CP Ti) by pack cementation treatment at 973 K using tetracalcium phosphate (Ca 4(PO4)2O, TTCP) slurry was investigated. An HAp phase and a CaTiO3 phase were observed on the reaction layer of the CP Ti substrate after pack cementation treatment at 973 K for 86.4 ks. TTCP powder decomposed to HAp and CaO, and CaO reacted with TiO2 to form CaTiO3. The reaction layer on the CP Ti substrate consisted of inner and outer layers and the particles were in the outer reaction layer. The pores observed on the reaction layer were formed by the detachment of particles from the outer layer. The bonding strength of the reaction layer was 68.1 MPa. Apatite completely covered the surface of the pack-cementation-treated CP Ti after immersion in Kokubo solution for 21.6 ks; such rapid apatite formation suggests that pack cementation treatment improves the biocompatibility of titanium.
KW - Immersion test
KW - Pack cementation treatment
KW - Tetracalcium phosphate
KW - Titanium
UR - http://www.scopus.com/inward/record.url?scp=77955493097&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955493097&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.654-656.2172
DO - 10.4028/www.scientific.net/MSF.654-656.2172
M3 - Conference contribution
AN - SCOPUS:77955493097
SN - 0878492550
SN - 9780878492558
T3 - Materials Science Forum
SP - 2172
EP - 2175
BT - PRICM7
PB - Trans Tech Publications Ltd
T2 - 7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
Y2 - 2 August 2010 through 6 August 2010
ER -