Materials Literature
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In-situ thermal expansion tests on a series of carbon nanotube bucky-paper composites were performed with direct heating within a synchrotron SAXS source. The impact of the samples density and morphology as well as the chemistry and degree of decoration of the carbon nanotubes on the scattering patterns were investiga…
The morphology and composition of self organized manganese (Mn)-rich nanocolumns embedded in germanium (Ge) thin films were characterized at the atomic scale and in three dimensions with high resolution transmission electron microscopy and atom probe tomography. Experiments revealed Mn-enriched nano-columns of 3 nm in…
Antibacterial activity of modified kaolinite and bentonite with antibacterial agents againstPseudomonas aeruginosawas studied. These clays have been modified with only cetyltrimethyl ammonium bromide (CTAB) and copper (Cu) and the combination of both. Characterization of the studied materials with X-Ray Diffraction (X…
New generation in vitro high-throughput screening (HTS) assays for the assessment of engineered nanomaterials provide an opportunity to learn how these particles interact at the cellular level, particularly in relation to injury pathways. These types of assays are often characterized by small sample sizes, high measur…
Cu(Mn) alloy seed BEOL studies revealed fundamental insights into Mn segregation and EM enhancement. We found a metallic-state Mn-rich Cu layer under the MnOx layer at the Cu/SiCNH cap interface, and correlated this metallic layer with additional EM enhancement. A carbonyl-based CVD-Co liner film consumed Mn, reducing…
Abstract During divergent synthesis of the next higher‐generation dendronized polymer (DP), the fifth‐generation DP, PG5, with a number‐average degree of polymerization, (i.e., number of monomeric units) Pn, of ca. 500 underwent main‐chain scission. This happened in the step when its peripheral Boc groups were removed…
The novel nano ceramic magnesium ferrite material doped with double lanthanide i.e., Samarium (Sm) and Dysprosium (Dy) showed the n-type semiconductor, was synthesized by sol- gel technique and sintered in a microwave furnace in order to enhance the electrical and magnetic behavior of this material as per the requirem…
Manganita de lantânio dopada com estrôncio (LSM) e cromita (LSC) em pó, bem como as correspondentes amostras não dopadas, foram sintetizadas pelo método de combustão, usando dois diferentes combustíveis (ureia e glicina). A ignição da mistura reacional com ureia leva mais tempo e a temperatura máxima é maior do que us…
Duplex type ferritic-austenitic stainless steels develop a specific two-phase banded structure upon thermo-mechanical pre-treatment and subsequent cold-rolling. The band-like morphology of ferrite and austenite imposes different conditions on plastic deformation of both constituent phases in comparison to one-phase fe…
The inhibition efficiency of some Benzaldehyde thiosemicarbazone derivatives for mild steel corrosion in 3.0 mol/L H3PO4 at 30.0 ± 0.1 0C were investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). These compounds inhibit the corrosion rate even at very low concentrations and th…
The photoluminescence properties of Tb3+ and Eu3+ complexes with polymer ligands containing various kinds of complexing groups—namely, carboxyl (5–20 mol %), pyridylquinoline (5 mol %), or pyridylnaphthyl (5 and 10 mol %) groups—in solution and block are considered. The chemical structure of a neutral comonomer (methy…
A Master of Science Thesis in Electrical Engineering Submitted by Anas Swedan Entitled, "Acoustic Detection of Partial Discharge using Signal Processing and Pattern Recognition Techniques," May 2010. Available are both Soft and Hard Copies of the Thesis.
A real high power vacuum ultraviolet light source is applied to the investigation on the vacuum ultraviolet irradiation degradation of BaMgAl 10 O 17 :Eu 2+ phosphor. The degradations of emission intensity and color quality of the sample are clearly observed after irradiation. It reveals that the oxidation of Eu 2+ du…
A new technology for hydrophobization of synthetic fiber materials was described. This technological approach is based on formation of nanosized fluoropolymer coatings from solutions of low-molecularweight fraction of ultradispersed polytetrafluoroethylene and tetrafluoroethylene telomers. The mechanism of formation o…
Acoustic and optical phonon dynamics from femtosecond time-resolved optical spectroscopy of the superconducting iron pnictide Ca(Fe0.944Co0.056)2As2, Kumar, Sunil, Harnagea, L., Wurmehl, S., Buchner, B., Sood, A. K.
Abstract Properties of the electrically conductive polymers (ECPs) enable introduction of several novel applications in various fields, among others, as biomedical materials. Their use as scaffolds for tissue engineering and recovery of damaged neural tissues is especially advantageous. They may also be used for the e…
We report that the crossover from normal martensite to strain glass in the TiNi-Fe alloy system does not proceed directly as indicated by previous studies but is actually mediated by an intermediate state named crossover martensite, appearing in the crossover composition of Ti 50 Ni 45 Fe 5 . The martensitic transitio…
In this paper, we present a thorough physical-chemical analysis of an engineered PCM stack, where the integration of C-doping and the use of a Ti top layer allow obtaining an Amorphous As-Deposited (A-AD) phase stable against Back End-Of-Line (BEOL) thermal budget. This PCM stack is then integrated in devices, which a…
This paper presents our recent understanding of metal/graphene contact in terms of intrinsic interface obtained from the comparison between resist-free and conventional EB processes, and discusses future challenges to reduce the contact resistivity.
Metal release from implantable metals and the properties of oxide films formed on alloy surfaces were analyzed, focusing on the highly biocompatible Ti–15Zr–4Nb–4Ta alloy. The thickness and electrical resistance (Rp) of the oxide film on such an alloy were compared with those of other implantable metals. The quantity…