Microstructure and shear fracture characteristics of porous anodic TiO 2 layer before and after hot water treatment

Z. X. Chen, Wenxue Wang, Y. Takao, T. Matsubara, L. M. Ren

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Porous TiO 2 layer was fabricated on the surface of commercially pure titanium using an anodic spark oxidation technique for biomedical application, and subsequent hot water treatment was performed to modify the resultant oxide layer. The microstructure features and shear fracture characteristics of anodic oxide layer before and after water treatment were investigated. Results show that before water treatment, the oxide layer exhibited a porous surface with few nanometer features and consisted of poorly crystallized oxides, and an inner layer containing numerous cavities was observed near the oxide-substrate interface. After water treatment, the crystallinity degree of oxide layer was increased significantly and a nanostructured surface layer was obtained. The shear fracture characteristics of oxide layer were greatly influenced by its microstructure features. Before water treatment, the shear fracture took place primarily within the cavity-containing layer, resulting in a pitted fracture surface on the substrate side. However, after water treatment, the shear fracture occurred mainly along the bottom surface of nanostructured surface layer and the shear strength of oxide layer decreased obviously.

Original languageEnglish
Pages (from-to)7254-7262
Number of pages9
JournalApplied Surface Science
Volume257
Issue number16
DOIs
Publication statusPublished - Jun 1 2011

Fingerprint

Water treatment
Oxides
Microstructure
Substrates
Titanium
Electric sparks
Shear strength
Oxidation

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Microstructure and shear fracture characteristics of porous anodic TiO 2 layer before and after hot water treatment . / Chen, Z. X.; Wang, Wenxue; Takao, Y.; Matsubara, T.; Ren, L. M.

In: Applied Surface Science, Vol. 257, No. 16, 01.06.2011, p. 7254-7262.

Research output: Contribution to journalArticle

@article{f6426779dc314be5b89ba1c2699e655a,
title = "Microstructure and shear fracture characteristics of porous anodic TiO 2 layer before and after hot water treatment",
abstract = "Porous TiO 2 layer was fabricated on the surface of commercially pure titanium using an anodic spark oxidation technique for biomedical application, and subsequent hot water treatment was performed to modify the resultant oxide layer. The microstructure features and shear fracture characteristics of anodic oxide layer before and after water treatment were investigated. Results show that before water treatment, the oxide layer exhibited a porous surface with few nanometer features and consisted of poorly crystallized oxides, and an inner layer containing numerous cavities was observed near the oxide-substrate interface. After water treatment, the crystallinity degree of oxide layer was increased significantly and a nanostructured surface layer was obtained. The shear fracture characteristics of oxide layer were greatly influenced by its microstructure features. Before water treatment, the shear fracture took place primarily within the cavity-containing layer, resulting in a pitted fracture surface on the substrate side. However, after water treatment, the shear fracture occurred mainly along the bottom surface of nanostructured surface layer and the shear strength of oxide layer decreased obviously.",
author = "Chen, {Z. X.} and Wenxue Wang and Y. Takao and T. Matsubara and Ren, {L. M.}",
year = "2011",
month = "6",
day = "1",
doi = "10.1016/j.apsusc.2011.03.101",
language = "English",
volume = "257",
pages = "7254--7262",
journal = "Applied Surface Science",
issn = "0169-4332",
publisher = "Elsevier",
number = "16",

}

TY - JOUR

T1 - Microstructure and shear fracture characteristics of porous anodic TiO 2 layer before and after hot water treatment

AU - Chen, Z. X.

AU - Wang, Wenxue

AU - Takao, Y.

AU - Matsubara, T.

AU - Ren, L. M.

PY - 2011/6/1

Y1 - 2011/6/1

N2 - Porous TiO 2 layer was fabricated on the surface of commercially pure titanium using an anodic spark oxidation technique for biomedical application, and subsequent hot water treatment was performed to modify the resultant oxide layer. The microstructure features and shear fracture characteristics of anodic oxide layer before and after water treatment were investigated. Results show that before water treatment, the oxide layer exhibited a porous surface with few nanometer features and consisted of poorly crystallized oxides, and an inner layer containing numerous cavities was observed near the oxide-substrate interface. After water treatment, the crystallinity degree of oxide layer was increased significantly and a nanostructured surface layer was obtained. The shear fracture characteristics of oxide layer were greatly influenced by its microstructure features. Before water treatment, the shear fracture took place primarily within the cavity-containing layer, resulting in a pitted fracture surface on the substrate side. However, after water treatment, the shear fracture occurred mainly along the bottom surface of nanostructured surface layer and the shear strength of oxide layer decreased obviously.

AB - Porous TiO 2 layer was fabricated on the surface of commercially pure titanium using an anodic spark oxidation technique for biomedical application, and subsequent hot water treatment was performed to modify the resultant oxide layer. The microstructure features and shear fracture characteristics of anodic oxide layer before and after water treatment were investigated. Results show that before water treatment, the oxide layer exhibited a porous surface with few nanometer features and consisted of poorly crystallized oxides, and an inner layer containing numerous cavities was observed near the oxide-substrate interface. After water treatment, the crystallinity degree of oxide layer was increased significantly and a nanostructured surface layer was obtained. The shear fracture characteristics of oxide layer were greatly influenced by its microstructure features. Before water treatment, the shear fracture took place primarily within the cavity-containing layer, resulting in a pitted fracture surface on the substrate side. However, after water treatment, the shear fracture occurred mainly along the bottom surface of nanostructured surface layer and the shear strength of oxide layer decreased obviously.

UR - http://www.scopus.com/inward/record.url?scp=79955580804&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955580804&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2011.03.101

DO - 10.1016/j.apsusc.2011.03.101

M3 - Article

AN - SCOPUS:79955580804

VL - 257

SP - 7254

EP - 7262

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

IS - 16

ER -