Analysis of titanium surface treated with combination of sandblast-acid etching and microarc oxidation

doi:10.3877/cma.j.issn.1674-1366.2010.03.009

Abstract

Abstract:

Objective

To study the morphological difference between the titanium surfaces treated by micro-arc oxidation （MAO） technique after sand blasting and micro-arc oxidation technique after sand blasting in combination with acid etching， and to explore how to use the ＂trabecular bone-like＂ structure and the rich calcium and phosphor composition of the MAO coating further.

Methods

Pure titanium specimens were sand-blasted by Al₂O₃ particles of 106 μm and 250 μm in diameter respectively.Half of them were further doubly etched with hydrofluoric acid.The two kinds of specimens were further divided into subgroups and treated by MAO technique using various voltages.Scanning electomicroscope（SEM） and X-ray diffraction were performed to characterize the coating surfaces.

Results

MAO processing after sand blasting and acid etching produced continuous and even oxide film.MAO processing did not change the basic morphology of sand blasting and acid etching.The pore size of the MAO processing surface of the second group treated by the Al₂O₃ particles of 250 μm diameter is the most close to the size of osteoblast.

Conclusion

Sand blasting and acid etching followed with micro-arc oxidation can optimize the surface morphology of the titanium implants.

Key words: Sand blasting and acid etching, Micro-arc oxidation, Titanium, Surface morphology

Fei-long DENG, Pei-fen ZHANG, Chen-han LIU, Xiao-lin YU, Quan ZHANG, Jun-qi LING. Analysis of titanium surface treated with combination of sandblast-acid etching and microarc oxidation[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2010, 4(03): 261-267.

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URL: https://zhkqyxyjzz.cma-cmc.com.cn/EN/10.3877/cma.j.issn.1674-1366.2010.03.009

https://zhkqyxyjzz.cma-cmc.com.cn/EN/Y2010/V4/I03/261

Figures/Tables 16

References 14

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样品	喷砂（μm）	酸蚀	MAO（V）
T1	106	4% HF	-
T2	250	4% HF	-
T3	-	-	300
T4	-	-	400
T5	-	-	450
T6	-	-	550
T7	106	-	300
T8	250	-	300
T9	106	4% HF	400
T10	250	4% HF	400

样品	喷砂（μm）	酸蚀	MAO（V）
T1	106	4% HF	-
T2	250	4% HF	-
T3	-	-	300
T4	-	-	400
T5	-	-	450
T6	-	-	550
T7	106	-	300
T8	250	-	300
T9	106	4% HF	400
T10	250	4% HF	400

样品	Ti	O	Ca	P	Al	Si
T1	98.45	1.55	0	0	-	-
T2	94.11	5.89	0	0	-	-
T7	28.22	64.54	1.57	3.06	0.71	1.90
T8	27.12	65.30	1.51	2.95	0.56	2.56
T9	25.45	63.29	8.31	2.95	-	-
T10	25.42	62.39	8.72	3.47	-	-

样品	Ti	O	Ca	P	Al	Si
T1	98.45	1.55	0	0	-	-
T2	94.11	5.89	0	0	-	-
T7	28.22	64.54	1.57	3.06	0.71	1.90
T8	27.12	65.30	1.51	2.95	0.56	2.56
T9	25.45	63.29	8.31	2.95	-	-
T10	25.42	62.39	8.72	3.47	-	-

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