Materials Literature
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The photophysics and photochemistry of phthalocyanine complexes of magnesium (MgPc), aluminum chloride (ClAlPc) and zinc (ZnPc) are studied in N,N′-dimethylformamide (DMF). The values obtained for the photophysical and photochemical parameters are normal for simple metallophthalocyanine (MPc) complexes. Protonation of…
We report microwave assisted hydrothermal synthesis and magnetocaloric properties of La0.67Sr0.33MnO3 manganite. The synthesized La0.67Sr0.33MnO3 nanoparticles was characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS) and magnetiza…
Silver-containing catalysts supported on ceramic silicon nitrides and modified with Zr or Al are considered. The catalytic activities of the catalysts in the dehydrogenation and oxidative dehydrogenation of ethanol into acetaldehyde are compared. The introduction of oxygen into the reaction mixture decreases the tempe…
This paper is based on the study of intermetallic phase formation during aging between 850°C and 950°C, for periods up to 5 min; those treatments were conducted in liquid aluminum bath, allowing fast heating of the small sized specimens. It was found that backscattered electron images could be used in the automatized…
A novel three-layer composite consisting of a lead zirconate titanate (PZT) substrate, a PZT film on one side, and a film of ferromagnetic alloy on the other side is fabricated and used for studies on the nature of magneto-electric (ME) interactions. The strain mediated ME voltage under an ac magnetic excitation is co…
The transport of bubbles to a neighboring surface is very important in surface chemistry, bioengineering, and ultrasonic cleaning, etc. This paper proposes a multi-bubble transport method by using an acoustic standing wave field and establishes a model that explains the multi-bubble translation by expressing the balan…
Single-Wall Carbon Nanotubes (SWCNTs) Were Well-Dispersed Using Ultrasonication to Conduct an Intratracheal Instillation Study. The Geometric Mean Diameter and Length of the SWCNT in Distilled Water Including 0.1 % Triton X-100 Was 44 Nm and 0.69 μm, Respectively. Rats Intratracheally Received 0.2 Mg or 0.4 Mg of SWCN…
Many energy conversion systems use thermal processes to convert chemical energy to mechanical or electrical energy. There are also many industrial processes performed at high temperature that produce excess heat. In both of these situations, heat exchangers can be used to recover thermal energy and make the processes…
We report the fabrication of electrical conductive tin-doped α-Ga 2 O 3 thin films on c -plane sapphire substrates. The mist chemical vapor deposition method brought tin-doped α-Ga 2 O 3 thin films with high crystallinity without noticeable other phases, as highlighted by the full-width of X-ray diffraction ω-scan roc…
Sodium borosilicate glass powder with the Si : B : Na molar ration of 53:44:6 has been developed and used as the solder to join sintered SiC ceramics. The coefficient of thermal expansion of the glass matches the silicon carbide substrate well at low temperature, and the wettability of the solder on SiC substrate beco…
To investigate environmental effect on cultural materials, Fourier transform infrared technique (FTIR/ATR) was applied to analyze the silk aging process. Changes in chemical and conformational structures of silk fabric undergoing ultraviolet induced degradation were investigated. The IR spectra provided strong bands o…
The present study relates to the production of polymorphic gold nanoparticles from biological sources such as Citrus limon, Murraya koenigii Linn leaves, and Canna indica (red), Quisqualis indica pink flowers. Reaction of biomass extract with Au+3solution under ambient conditions yielded polymorphic, stable gold nanop…
Understanding of fundamental adhesion is a key issue for bonding, polymer composites, and coatings. In this study, diluted solutions of polyurethane monomers (methylene diphenyl diisocyanate isomer mixture—MDI, polypropylene ether triol—PPET) are exposed to the native surfaces of Au, Al, and Cu. The adsorption state o…
A. Scarinoa, A. Noëlb, P. M. Renzic, Y. Cloutierd, R. Vincente, G. Truchond, R. Tardifb & M. Charbonneau*aa INRS-Institut Armand-Frappier, Université du Québec, Laval, Quebec, Canadab Département de santé environnementale et santé au travail. Université de Montréal, Montreal, Quebec, Canadac CHUM Research Center, Notr…
A sol-gel method was used to synthesize a highly stable form of MgO from magnesium oxalate dihydrate. The sol-gel products were characterized using simultaneous thermogravimetric analysis (STA), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and UV-Visible light spectroscopy (UV-Vis). Fro…
Electronic structure methods, especially density functional theory (DFT) and time-dependent DFT, have found significant applications in understanding the structure and properties of nanoparticles. In this review, recent studies of the geometric and electronic structure, optical absorption, circular dichroism, growth m…
Malignant gliomas are primary brain tumors with high rates of morbidity and mortality; they are the fourth most common cause of cancer death. Novel diagnostic and therapeutic techniques based on nanomaterials provide promising options in the treatment of malignant gliomas. In order to evaluate the potential of FePt na…
Pavement working state and service life assessment is really meaningful for traffic security, design evaluation and road maintenance. However, this job seems to be a mission impossible, because it is almost incredible to learn how a pavement inside works exactly when the construction is finished. As a result, in this…
First principles study of structural, elastic properties and anisotropy eect on the mechanical parameters of the zinc-blende boron nitride has been performed using the pseudopotential plane wave method based on density functional theory with the Teter and Pade exchange-correlation functional of the local density appro…
Graphene, a single layer of carbon atoms in a two-dimensional lattice, has attracted considerable attention owing to its unique physical, chemical and mechanical properties. In particular, because of its excellent thermal properties such as high thermal conductivity and good thermal stability, graphene has been regard…