Seeding polymer substrates for the attachment and growth of metallic contacts is an important problem in modern microcircuit fabrication. A new method to effect such polymer metallization is described in which the polymer is first treated with vapor of zirconium or titanium tetra-tert-butoxide and then thermalyzed to give several monolayers of zirconium or titanium oxides that are attached to t...

Powder metallurgy techniques have been used to produce controlled porous structures, such as the porous coatings applied for dental and orthopedic surgical implants, which allow bony tissue ingrowth within the implant surface improving fixation. This work presents the processing and characterization of titanium porous coatings of different porosity levels, processed through powder metallurgy te...

Titanium and its alloys are wildly used in industries. Shrouded plasma spray can be considered as a useful technology to produce low oxide containing titanium coatings. In this paper, the effect of shroud spraying on chemical composition thickness coatings were investigated. plasma-sprayed deposited onto mild steel substrates. Air also for comparison under same parameters. Those then studied te...

The objective of the work was to prepare and characterize titania sol-gel coatings on non-porous titanium and newly developed titanium alloys. Basic titania sol contained two forms of silver. Titania sol without silver was used as a reference sample. Coatings were prepared by dip-coating technique during stirring and fired. Coatings after firing were characterized by scanning electron microscop...

We report a study on the biocompatibility vs. thickness in the case of titanium nitride (TiN) films synthesized on 410 medical grade stainless steel substrates by pulsed laser deposition. The films were grown in a nitrogen atmosphere, and their in vitro cytotoxicity was assessed according to ISO 10993-5 [1]. Extensive physical-chemical analyses have been carried out on the deposited structures ...

TiO2−δ films were deposited on (100) lanthanum aluminate, LaAlO3, substrates at a low oxygen chamber pressure, P ≈ 0.3 mTorr, employing a pulsed laser ablation deposition technique. In previous work, it was established that the oxygen deficiency in these films induced ferromagnetism. In this work it is demonstrated that this same oxygen deficiency also gives rise to semiconductor titanium ion i...

A novel, miniaturized, high-efficiency photocatalytic cell, able to work in dynamic conditions, has been designed and validated in this study. Microfluidic channels were molded out of polydimethylsiloxane (PDMS) by means of standard soft lithography techniques, so as to work as photocatalytic cells, where the coupling of anatase titanium dioxide thin films and platinum electrodes, allows an ele...

Tubular heterostructures based on titanium dioxide (TiO2) and silica nanotubes (SNTs) with high photocatalytic activity have been successfully obtained by a simple combination of an electrospinning technique and a solvothermal process. The as-prepared products were characterized by field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (X...

A rough surface texture was found on laser sintered titanium substrate, which was responsible for instability of the calcium phosphate layer from the point of view of obtaining good adhesivity to the substrate at given preparation conditions. After the mechanical treatment and following soaking of Ti substrate in 3 M NaOH solution, the surface texture was much smoother than in the original samp...

INTRODUCTION: Orthopaedic prostheses implantation is an invasive surgical procedure, with an increased risk for post-operative infections. Since the life span and quality of these implants is improving and more prostheses are implanted every year, the incidence of post-operative infections will increase. Most implants are based on titanium or nickel-chromemolybdenum alloys, while their overall ...