Surface Contamination of Titanium by Abrading Treatment

Miyakawa, Osamu; Watanabe, Kouichi; Okawa, Shinpei; Kanatani, Mitsugu; Nakano, Syuji; Kobayashi, Masayoshi

doi:10.4012/dmj.15.11

Cited by 40 publications

(29 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other words, the characteristics of the Ti surface play a key role in its biocompatibility. Most of the surfaces of cast and polished Ti have a reactive and contaminated layer [5][6][7][8][9] . It was assumed that these layers which form on the Ti surface influence the biocompatibility and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Chemical mechanical polishing of titanium with colloidal silica containing hydrogen peroxide-mirror polishing and surface properties

Okawa

Watanabe

2009

Dent. Mater. J.

Self Cite

View full text Add to dashboard Cite

Chemical mechanical polishing (CMP) of cpTi (Ti) was carried out using two types of slurries, acidic and basic colloidal silica containing H2O2 up to 3 wt％, to obtain flat and mirror-polished surfaces without any contaminated and reacted layers. Polishing behavior and surface properties were investigated using AFM, EPMA, and XPS. Weight loss of Ti polished by CMP using the basic slurry was larger than that using the acidic one, and surface roughness was less than 2 nm RMS when basic slurry containing 3 wt％ H2O2 was used. Moreover, three kinds of chemical species, OH -, O 2-, and H2O, were detected on the Ti surfaces polished by CMP using these slurries. Results of this study showed that CMP using colloidal silica containing H2O2 successfully created a mirror-polished surface without contaminated and reacted layers.

show abstract

Section: Introductionmentioning

confidence: 99%

Chemical mechanical polishing of titanium with colloidal silica containing hydrogen peroxide-mirror polishing and surface properties

Okawa

Watanabe

2009

Dent. Mater. J.

Self Cite

View full text Add to dashboard Cite

show abstract

“…X-ray diffraction of the abraded surface was performed to identify the contaminants. It was reported that (1) the contamination of titanium was related to its reactivity as well as its hardness, (2) in spite of water cooling and slow-speed abrading, titanium surfaces were obviously contaminated, (3) contaminant deposits with dimensions ranging from about 10 to 30 μm occurred throughout the surfaces, and (4) the contaminant of titanium, although related also to the hardness, resulted primarily from a reaction with abrasive materials, and such contamination could negatively influence titanium's resistance to corrosion and its biocompatibility [81].…”

Section: Sandblastingmentioning

confidence: 99%

“…Miyakawa et al [81] studied the surface contamination of abraded titanium. Despite low grinding speeds and water cooling, the abraded surfaces were found to be contaminated by abrasive constituent elements.…”

Section: Sandblastingmentioning

confidence: 99%

Green Techniques for Biomedical Metallic Materials with Nanotechnology

Guo

Tam

2015

Green Processes for Nanotechnology

View full text Add to dashboard Cite

From a clinic or medical viewpoint, it is important that the surgical implant retains a combination of high strength (including surface wear resistance), good biocompatibility, and chemical stability. To enable safe interactions between the surgical implants and tissues, surface modification and functionalization are commonly employed.Biological coatings such as TiN and titanium oxides are widely adopted and functionalized with various biological properties such as corrosion resistance, bioactivity, cytocompatibility, and bioconductivity. However, failure of the biological coatings due to the long term corrosion and wear or fretting is the main problem and debris from the materials is the main cause of joint replacement failure. Since the surgical implants are implanted into the human body for a long time, cyclic motions between the surgical implants and human tissues may disrupt the protective biological coatings accelerating corrosion and increasing the risks of immunological response by the leached metallic ions.Therefore, improved metallic biomaterials and the relevant manufacturing techniques are being introduced to meet this demand. Apart from the biocompatibility requirement, metallic biomedical materials also have to meet high standards regarding its performance (functionality, reliability) and selection criteria (cost, manufacturing ability). Up to now, the most often used metallic biomedical materials include stainless steel, cobalt-based alloys, and commercially pure titanium or titaniumbased alloys. However, the implant metallic biomaterials, like all mechanical components, are subjected to degradation and have limited lifetime. Damaged implant requires successive operation to replace worn components and so intensive efforts are made to increase durability of implants metallic biomaterials.For enhancing the mechanical retention, engineered nanostructures on the surface are normally taken to increase effective surface area on implant surfaces (such as both dental and orthopedic applications) to exhibit biological, mechanical, and morphological compatibilities to receiving vital hard/soft tissue, resulting in promoting osseointegration.

show abstract

“…The high quality of osteointegration facilitates an accelerated healing process of traumatized bone and ensures high stability and durability of implants. In order to decrease osteo-integration period or to improve the quality of implants, hydroxyapatite (HA) compound can be deposited on a metallic material as a thin * E-mail: nicanornick@yahoo.com layer [1]. Surface modifications in order to deposit thin films are generally divided into two categories: a concave and a convex texturing.…”

Section: Introductionmentioning

confidence: 99%

Chemical properties of hydroxyapatite deposited through electrophoretic process on different sandblasted samples

Gradinariu

Ştirbu

Gheorghe

et al. 2014

Materials Science-Poland

View full text Add to dashboard Cite

An implantable material based on titanium (Ti6Al4V) was sandblasted in order to be deposited with a thin film of hydroxyapatite. Two samples of the alloy, in a shape of a bar with 10 mm diameter and 20 mm length, were subjected to mechanical treatment. After deposition of the hydroxyapatite through electrophoresis process, the samples were analyzed by scanning electron microscopy. The nature and chemical properties of thin films formed on Ti-based substrate were investigated with electrochemical impedance spectroscopy based on the extremely high polarization resistance of the material. The results revealed the formation of a homogeneous layer on the surface of the metallic substrate. The layer composed of TiO 2 and hydroxyapatite provided a high corrosion protection.

show abstract

Surface Contamination of Titanium by Abrading Treatment

Abstract: This study investigated the contamination of abraded Ti surfaces. Using a polishing machine, specimens were abraded with waterproof SiC grit papers under water cooling. The abraded surfaces were examined using element analysis, X-ray diffraction, and hardness tests.

Cited by 40 publications

References 3 publications

Chemical mechanical polishing of titanium with colloidal silica containing hydrogen peroxide-mirror polishing and surface properties

Chemical mechanical polishing of titanium with colloidal silica containing hydrogen peroxide-mirror polishing and surface properties

Green Techniques for Biomedical Metallic Materials with Nanotechnology

Chemical properties of hydroxyapatite deposited through electrophoretic process on different sandblasted samples

Contact Info

Product

Resources

About