Preparation of hydroxyapatite-containing titania coating on titanium substrate by micro-arc oxidation

Journal Article · Tue Jan 08 04:00:00 EST 2008 · Materials Research Bulletin

OSTI ID:21068172

Jiahua, Ni ^[1]; Fengying, Yan ^[1]; Jianzhi, Chen ^[2]; Lei, Wang ^[3]

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1. School of Material Science and Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042 (China)
2. Department of Prosthodontics, School of Stomatology and Affiliated Ninth People's Hospital, Medical College, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai 200011 (China)
3. Department of Prosthodontics, Affiliated Hospital, Medical College, Qingdao University, 16 Jiangsu Road, Qingdao 266003 (China)

Hydroxyapatite-containing titania coatings on titanium substrates were formed by micro-arc oxidation (MAO) in electrolyte containing calcium acetate monohydrate (CH{sub 3}COO){sub 2}Ca.H{sub 2}O) and sodium phosphate monobasic dihydrate (NaH{sub 2}PO{sub 4}.2H{sub 2}O) using a pulse power supply. Scanning electron microscopy (SEM) with Energy dispersive X-ray spectrometer (EDX) and X-ray diffraction (XRD) were employed to characterize the microstructure, elemental composition and phase components of the coatings. The coatings were rough and porous, without apparent interface to the titanium substrates. All the oxidized coatings contained Ca and P as well as Ti and O, and the porous coatings were made up of anatase, rutile and hydroxyapatite. Such MAO films are expected to have significant applications as artificial bone joints and dental implants.

• OSTI ID: 21068172
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 1 Vol. 43; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACETATES
APATITES
BONE JOINTS
CALCIUM COMPOUNDS
CERAMICS
COATINGS
ELECTROLYTES
HYDRATES
IMPLANTS
MICROSTRUCTURE
OXIDATION
POROUS MATERIALS
RUTILE
SCANNING ELECTRON MICROSCOPY
SODIUM PHOSPHATES
THIN FILMS
TITANIUM
TITANIUM OXIDES
X-RAY DIFFRACTION
X-RAY SPECTROMETERS