نتایج جستجو برای: porous titanium

تعداد نتایج: 84614  

Journal: :Dalton transactions 2015
Younes Brahmi Nadia Katir Juan Antonio Macia Agullo Ana Primo Mosto Bousmina Jean Pierre Majoral Hermenegildo Garcia Abdelkrim El Kadib

The sol-gel co-condensation of organo-phosphonates to titanium alkoxides enables access to novel organic-inorganic hybrids based on phosphonate-bridged titanium dioxide. In this contribution, we bring new perspectives to the long established sol-gel mineralization of titanium alkoxide species, by harnessing the virtues of the well-designed phosphonate-terminated phosphorus dendrimers as reactiv...

2005
Ji-Ho Park Yong-Keun Lee Kwang-Mahn Kim Kyoung-Nam Kim

This study examined the characteristics of calcium phosphate coatings formed on untreated and H2O2-treated titanium substrates by electrodeposition in a modified simulated body fluid (SBF). A porous coating comprising of mainly hydroxyapatite (HA) was formed on the H2O2-treated titanium substrate by electrodeposition. This coating was transformed into carbonate and calcium-deficient HA layers w...

2010
Makoto Kobashi Daishi Ichioka Naoyuki Kanetake

Porous titanium carbide (TiC) and TiC/Ti composites were synthesized by self-propagating high-temperature synthesis (SHS). Titanium and carbon powders were blended by various Ti/C blending ratios. The heat of reaction between titanium and carbon was high enough to induce the self-sustaining reaction of TiC formation on condition that some processing parameters (Ti/C ratio and porosity of the pr...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2009
X Cui H-M Kim M Kawashita L Wang T Xiong T Kokubo T Nakamura

OBJECTIVES To research the crystal structure and surface morphology of anodic films on titanium metal in different electrolytes under various electrochemical conditions and investigate the effect of the crystal structure of the oxide films on apatite-forming ability in simulated body fluid (SBF). METHODS Titanium oxide films were prepared using an anodic oxidation method on the surface of tit...

بساکی, سمیرا, رشید زاده, مهدی, نقی‌زاده, رحیم, گلستانی‌فرد, فرهاد,

Titanium dioxide-nickel oxide porous coatings were synthesized by Plasma Electrolytic Oxidation (PEO)/ ElectroPhoretic Deposition (EPD) in one step and within a short time. The main purpose of this research was to increase photocatalytic activity of titanium oxide by increasing surface area and coupling of titanium oxide with nickel oxide. Applied voltage effects on phase structure, surface mor...

2011
D. K. Pattanayak T. Matsushita H. Takadama A. Fukuda M. Takemoto S. Fujibayashi K. Sasaki N. Nishida T. Nakamura T. Kokubo

Porous titanium (Ti) metal with a structure similar to that of human cancellous bone was fabricated by selective laser melting (SLM) process. SEM observation showed that the core part of the walls of the porous body was completely melted by the laser beam and weakly bonded with small Ti particles on its surface. These Ti particles were joined with the core part by heating above 1000 °C, with re...

M. Ghavidel, M. Rajabi, S. M. Rabiee,

In this study, porous titanium composites containing 5, 10 and 15 wt. % nanobioglass were fabricated by space holder sintering process. The pore morphology and phase constituents of the porous samples were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The mechanical properties were determined by compression test. The porosity of the sintered samples show...

2011
Ghafar Ali Chong Chen Seung Hwa Yoo Jong Min Kum Sung Oh Cho

We present a novel method to fabricate complete and highly oriented anodic titanium oxide (ATO) nano-porous structures with uniform and parallel nanochannels. ATO nano-porous structures are fabricated by anodizing a Ti-foil in two different organic viscous electrolytes at room temperature using a two-step anodizing method. TiO2 nanotubes covered with a few nanometer thin nano-porous layer is pr...

Journal: :Journal of biomedical materials research 1984
T A Gruen A Sarmiento

I . Cement-bone interface histology 60 II . Acrylic bone cement and the exotherm 61 III . Radiographic analysis of interfaces in total hip replacement 63 IV. Interface biomechanics in total hip replacement 63 V. Radiographic analysis of interfaces in total knee replacement 65 VI . Interface biomechanics in total knee replacement 65 VII . Biomaterials interface biomechanics 66 VIII . Ceramic/bon...

2001
Izumi Ichinose Junhui He Shigenori Fujikawa Mineo Hashizume Jianguo Huang Toyoki Kunitake

Ultrathin nanocomposite films were prepared on solid supports via adsorption of organic and inorganic molecules from solution. Coordination geometry for transition metal ions was preserved by embedding metal ligands into titanium oxide gel films, and porous titanium oxide films were prepared by selective removal of organic components from polymer/metal oxide composite films using oxygen plasma ...

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