TY - JOUR
T1 - Structure and properties of Ca-plasma-implanted titanium
AU - Liu, Xuanyong
AU - Poon, Ray W.Y.
AU - Kwok, Sunny C.H.
AU - Chu, Paul K.
AU - Ding, Chuanxian
PY - 2005/2/1
Y1 - 2005/2/1
N2 - Plasma immersion ion implantation and deposition (PIII-D) has been proven to be an effective approach to enhance the surface properties of various types of materials and applied in many industrial areas, such as semiconductor and biomaterials. In this work, calcium ions were implanted into and deposited onto titanium using PIII-D to improve its surface bioactivity. Based on secondary ion mass spectrometry (SIMS) results, the Ca implantation depth increases with higher bias voltages. After exposure to air, the outermost surface is found to comprise calcium hydroxide and calcium carbonate. The bioactivity of the implanted titanium was evaluated using a simulated body fluid (SBF) soaking test. After the sample was soaked in the simulated body fluid for a period of time, the calcium hydroxide on the surface dissolved gradually into the solution. At the same time, hydroxyapatite formed on the surface indicating the implantation of calcium into titanium indeed improves the bioactivity of the surface. © 2004 Elsevier B.V. All rights reserved.
AB - Plasma immersion ion implantation and deposition (PIII-D) has been proven to be an effective approach to enhance the surface properties of various types of materials and applied in many industrial areas, such as semiconductor and biomaterials. In this work, calcium ions were implanted into and deposited onto titanium using PIII-D to improve its surface bioactivity. Based on secondary ion mass spectrometry (SIMS) results, the Ca implantation depth increases with higher bias voltages. After exposure to air, the outermost surface is found to comprise calcium hydroxide and calcium carbonate. The bioactivity of the implanted titanium was evaluated using a simulated body fluid (SBF) soaking test. After the sample was soaked in the simulated body fluid for a period of time, the calcium hydroxide on the surface dissolved gradually into the solution. At the same time, hydroxyapatite formed on the surface indicating the implantation of calcium into titanium indeed improves the bioactivity of the surface. © 2004 Elsevier B.V. All rights reserved.
KW - Bioactivity
KW - Calcium
KW - Plasma immersion ion implantation and deposition
KW - Titanium
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U2 - 10.1016/j.surfcoat.2004.08.118
DO - 10.1016/j.surfcoat.2004.08.118
M3 - RGC 21 - Publication in refereed journal
SN - 0257-8972
VL - 191
SP - 43
EP - 48
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
IS - 1
ER -