Results 211 to 220 of about 37,344 (262)

Tubular macro-porous titanium membranes

Journal of Membrane Science, 2014
Abstract We present tubular macroporous titanium membranes prepared via a dry-wet spinning process from a polyethersulfone solution loaded with Ti particles (15 μm) and a subsequent sintering process at various sintering temperatures (1100–1500 °C) and sintering times (30–75 min).
Oana David, Youri Gendel, Matthias Wessling   +2 more
openaire   +1 more source

Porous titanium surgical implant materials

Journal of Biomedical Materials Research, 1971
AbstractPorous pure titanium and titanium‐6% aluminum‐4% vanadium alloy materials, made by several powder metallurgy techniques, have been studied for potential use as surgical implant materials. Tissue ingrowth into open porosity and favorable physical properties have been found.
Joel S. Hirschhorn, Andrew A. McBeath, Manek R. Dustoor   +2 more
openaire   +1 more source

Gelcasting of porous titanium implants

Powder Metallurgy, 2008
Porous titanium implants with large size and complex shape were successfully fabricated by a novel near net forming process, gelcasting, and the effects of processing parameters on the viscosity of...
Y. Li, Z. M. Guo, J. J. Hao, S. B. Ren
openaire   +1 more source

Hybrid solid-porous titanium scaffolds

2019
The aim of this study was to fabricate by selective laser melting hybrid solid-porous titanium scaffolds with regions of different porosities (500, 700 and 900 µm) controlled by the size of the diamond structure. In order to remove unmelted powder particles, obtain the required surface finish and render CAD model dimensions fabricated structures were ...
Chmielewska, Agnieszka, Wysocki, Bartlomiej Adam, Żrodowski, Łukasz, Święszkowski, Wojciech   +3 more
openaire   +1 more source

Porous sintered titanium-base alloys

Soviet Powder Metallurgy and Metal Ceramics, 1972
1. Powder metallurgical Ti-20% Mo-5% Cr-0.2% Pd alloys sintered at 1400°C exhibit high resistance to corrosion by hot and concentrated hydrochloric and nitric acid solutions and may be employed for the production of permeable materials. 2.
D. S. Arensburger, V. P. Kopylova, A. V. Perepelkin   +2 more
openaire   +1 more source

Highly porous titanium scaffolds for orthopaedic applications

Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2010
AbstractFor many years, the solid metals and their alloys have been widely used for fabrication of the implants replacing hard human tissues or their functions. To improve fixation of solid implants to the surrounding bone tissues, the materials with porous structures have been introduced. By tissue ingrowing into a porous structure of metallic implant,
Bogdan, Dabrowski, Wojciech, Swieszkowski, Dirk, Godlinski, Krzysztof J, Kurzydlowski   +3 more
openaire   +2 more sources

Ciprofloxacin attachment to porous‐coated titanium surfaces

Journal of Applied Biomaterials, 1994
AbstractA simple and effective method for attaching ciprofloxacin HCl salt to the surface of porouscoated titanium based orthopedic materials was developed. The method utilizes the electrophoretic migration of both fine ciprofloxacin HCl particles and ciprofloxacin ions to deposit the antibiotic salt on a positively biased surface.
D S, Dunn, S, Raghavan, R G, Volz
openaire   +2 more sources

Characterizations of additive manufactured porous titanium implants

Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2012
AbstractThis article describes physical, chemical, and mechanical characterizations of porous titanium implants made by an additive manufacturing method to gain insight into the correlation of process parameters and final physical properties of implants used in orthopedics. For the manufacturing chain, the powder metallurgy technology was combined with
Ahmad, Basalah, Yaser, Shanjani, Shahrzad, Esmaeili, Ehsan, Toyserkani   +3 more
openaire   +2 more sources

Ultrafine-grained porous titanium and porous titanium/magnesium composites fabricated by space holder-enabled severe plastic deformation

Materials Science and Engineering: C, 2016
Compaction of powders by equal channel angular pressing (ECAP) using a novel space holder method was employed to fabricate metallic scaffolds with tuneable porosity. Porous Ti and Ti/Mg composites with 60% and 50% percolating porosity were fabricated using powder blends with two kinds of sacrificial space holders. The high compressive strength and good
Yuanshen Qi, Karla G. Contreras, Hyun-Do Jung, Hyoun-Ee Kim, Rimma Lapovok, Yuri Estrin   +5 more
openaire   +2 more sources

An Evaluation of Skeletal Attachment to LTI Pyrolytic Carbon, Porous Titanium, and Carbon-coated Porous Titanium Implants

Clinical Orthopaedics and Related Research, 1984
Porous titanium, carbon-coated porous titanium, and low-temperature isotropic (LTI) pyrolytic carbon transcortical implants were placed in the femora of mongrel dogs. Mechanical and histologic analyses were performed in specimens that remained in situ for six months.
R C, Anderson, S D, Cook, A M, Weinstein, R J, Haddad   +3 more
openaire   +2 more sources