Materials Literature
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Titanium and its alloys are nowadays widely used in many sectors: in the medical field (orthopedic and dental ones), in the architectural field, in the chemical plants field and in aeronautic. In this last field it is more and more used both for its contribution to make lightweight and time durable structures and for…
Current producers of antimicrobial technology have a long lasting, environmentally safe, non‐leaching, water soluble solution that will eventually replace all poisons and heavy metals. The transition metal ions inevitably exist as metal complexes in biological systems by interaction with the numerous molecules possess…
The 60 Hz, Frame 7F engine has been in commercial operation for more than two decades now with approximately 600 Frame 7 (F, FA, FA+ and FA+e models) machines existing in North America and a total of over 1100 F-class machines throughout the world. Volatile market dynamics in the electrical power generation field cont…
To understand the feasibility of calcium (Ca) modification of type 316L stainless steel (316L SS) surface using hydrothermal treatment, 316L SS plates were treated hydrothermally in calcium chloride (CaCl(2)) solution. X-ray photoelectron spectroscopic analysis revealed that the surface of 316L SS plate was modified w…
We report using high repetition rate near-infrared femtoseond laser to reduce Eu3+ into Eu2+ inside oxyfluoride glass. SrF2 crystal was space-selectively precipitated with the irradiation of femtosecond laser and we successfully realized the reduction of Eu ions, confirmed with the observation of blue emission of Eu2+…
The absorption and fluorescence spectra of Er3+:LiGdF4 crystal was measured at room temperature. Base on the Judd-Ofelt theory, the intensity parameters of Er3+ in LiGdF4 crystal were determined, Ω2=0.905×10-20cm2, Ω4=2.47×10-20cm2 and Ω6=4.92×10-20cm2. The values of the radiative transition probabilities, branching r…
A standard-free method for living plants in in-air PIXE has been developed in order to clarify the mechanism of elemental transportation and movement in farm products. The components of the continuous X-rays originated from air and a backing film can be exactly subtracted using a blank spectrum after normalization by…
The morphology and crystallography of martensite plates with a long period stacking structure in Ti-Pd shape memory alloy were investigated by transmission electron microscopy. In addition to B19 (2H) martensite, an 18R(2\\bar1)6 structure was observed in equiatomic Ti-Pd alloy quenched above 1373 K. Three fundamental…
The powder injection moulding (PIM) technology is lately becoming more and more significant due to complex design possibilities and good repeatability. This technology requires optimization of all steps starting with material and binder, injection, debinding and sintering parameters. Sintering is one of the key links…
In this study, a solution-processable precursor, decaphenycyclopentasilane (DPCPS) was synthesized and successfully converted into an inorganic thin film through the heat treatment process. When the DPCPS coating was heat-treated at various temperatures up to 900 °C, the organic DPCPS was converted into an inorganic c…
Nuclear fusion is a promising source of environmental friendly energy for the future, and the ultra-fine grained Tungsten (W) is a hopeful candidate material to be used as plasma-facing materials (PFMs), which are the key materials in the International Thermonuclear Experimental Reactor (ITER), for its many useful adv…
Effects of varying doping concentrations () of on the aggregation behaviour of cationic surfactant in nonaqueous and aqueous medium have been investigated. Mixed and pure lyotropic liquid crystalline LLC phases appeared in nonaqueous and aqueous ternary mixtures due to the fast quenching process and then characterized…
Surface modifications of polyurethane (PU)-based implantable materials have the potential to enhance or improve hemo- or cellular-biocompatibility. In general, surface modification methods of PU have included surface treatments, physio-adsorption of desired biomolecules, and the covalent immobilization of reactive or…
TiO2 continuous fibers were prepared by a modified sol-gel method combined with centrifugal spinning and different heat treatment processes. The prepared fibers were characterized by TG-DSC, XRD, SEM, N2 adsorption-desorption and XPS. The photocatalytic degradation of X-3B aqueous solution was used as a probe reaction…
A novel single-phase Unified Power Quality Controller (UPQC) topology is proposed in this paper, which can effectively solve some kinds of power quality problems from the load or from the power side. The new topological structure of single-phase UPQC and its working principle are introduced firstly. Then, the control…
A drastic reduction of the dislocation density in a semipolar (1122) GaN stripe on a patterned Si substrate was achieved by the two-step selective growth of a GaN stripe. After depositing a SiO2 mask on the (1122) and (0001) faces of a GaN stripe grown on a (113) Si substrate, GaN was regrown only on the (1122) face.…
In this study a method to deposit a-Si:H-DLC film at room temperature has been explored by CVD. The interface structure of a-Si:H-DLC film and the compositions of DLC film were studied, the adhesion strength of DLC film deposited directly on metal substrates was very poor, there was an almost complete crack at interfa…
Des composites unidirectionnels contenant entre 10 et 40 % de fibres de lin en volume ont été fabriqués par moulage par compression. Leurs propriétés mécaniques en traction et en flambement sont discutées en fonction de celles des fibres et de la matrice. L’évolution quasi linéaire des propriétés des composites avec l…
We present a beam-shaping system for a pulsed laser deposition setup. This system is based on two diffractive beam-splitter gratings and is able to produce 2 × 2 mm2 flat-top distributions of UV light with a fluence of 3 J/cm2 on the target some 30 cm behind the system. We have applied the setup to deposit ferromagnet…
Substantial efforts have been made for the standardization of nanotechnology vocabulary by the ISO Technical Committee 229, which has already produced a few standards. However, in view of growing interest in the environmental, health, and safety issues of nanomaterials, the definition of nanomaterial still remains con…