Materials Literature
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Use of engineered metal oxide nanoparticles in a plethora of biological applications and custom products has warned about some possible dose-dependent cytotoxic effects. Macrophages are key components of the innate immune system used to study possible toxic effects and internalization of different nanoparticulate mate…
Gas permeability and morphological properties of nanocomposites prepared by the mixing of poly(lactic acid) (PLA), poly(butylene succinate) (PBS), and clay was investigated. While the composition of PLA and PBS polymers was fixed as 80% and 20% by weight, respectively, for all the nanocomposites, clay contents varied…
Blends of poly(lactic acid) (PLA)/thermoplastic starch (TPS) were prepared by extrusion and thermopressing, with proportions of 0.1, 0.2 and 0.3 g of PLA per g TPS. Thermoplastic starch was obtained from the extrusion of 0.30 g or 0.25 g of glycerol per g of starch. The mechanical properties and water vapor permeabili…
Mesoporous Co3O4 with hexagonally ordered cylindrical channels has been synthesized by a single-step method using Pluronic soft micellar templates. The resulting material has been directly compared to isomorphous Co3O4 that was obtained via an established but laborious five-step nanocasting method. The soft template r…
A new non-centrosymmetric rare-earth borate K6Li3Sc2B15O30 has been synthesized by solid-state reaction technique, and a transparent crystal with dimensions of 28 × 28 × 8 mm3 was successfully obtained with a K2O–Li2O–B2O3–LiF flux by the top-seeded solution growth method. Single crystal X-ray diffraction results show…
We report the results of a synchrotron-based high-resolution XPS study of the interaction of L-cysteine (Cys) with well-characterized colloidal gold nanoparticles (NPs, typical size 3-4 nm), which were pre-deposited on highly oriented pyrolytic graphite and then brought into contact with the aqueous solution of Cys by…
IN PREPARATION OF THIS CHAPTER, THE CONTENTS of the fourteenth edition of this manual were drawn upon. The author acknowledges the author of the chapter in the fourteenth edition, Martin B. Price. The current edition will review and update the topics as addressed by the previous author, introduce new technology, and i…
A systematic study of the microstructural response of conventionally cast IN 738 and single crystal CMSX 486 superalloys during linear friction welding was performed. The results revealed that, aside from a significant liquation of various phases that occurred during joining, continuous oxide films formed on the weld…
In this study, we prepare UV-curable polyacrylate–gold nanocomposites (PGNs) for the first time and analyze their thermal properties. The microemulsion architectures of these PGNs contain gold nanoparticles (GNPs) whose surface is modified with carboxyl groups; furthermore, 2-hydroxyethyl methacrylate (HEMA) and methy…
The electronic structures and the bond characters of bulk -Fe with Ti, C, N additions are studied using the first-principls pseudopotential plane-wave method. The total energy and the cohesive energy are calculated, and the Mulliken population, the overlap population, the density of states and the charge density are a…
A coarse grain approach was selected to simulate nanocomposites made of single-walled carbon nanotubes (SWNTs) and poly(methyl methacrylate) (PMMA). Unlike common coarse grain simulations, which employ Lennard-Jones models as the force field between the beads, the current approach used experiment-based data, and hence…
Thermal decomposition of glauconite in air was studied by optical microscopy, thermal analysis, X-ray diffraction, and Mössbauer spectroscopy. The glauconite structure keeps preserved during thermal treatment up to 800 °C; however, simultaneously, a progressive transformation of Fe2+ and Fe3+ ions in glauconite struct…
Composite materials were modified in order to increase their wear resistance when in contact with raw-cotton. It is found that the friction pairs increases their efficiency and durability to 2.0-2.2 times.
A two-dimensional (2D) lattice Boltzmann method (LBM)-cellular automaton (CA) coupled model is developed for the simulation of dendritic growth and bubble formation during solidification. In the model, the dendritic growth is simulated by a CA approach. The driving force of dendritic growth is determined by a local so…
The outstanding electrical and mechanical properties of graphene make it very attractive for several applications, Nanoelectronics above all.However a reproducible and non destructive way to produce high quality, large-scale area, single layer graphene sheets is still lacking.Chemical Vapour Deposition of graphene on…
The effect of MnO 2 doping on the structure, microstructure and dielectric properties of BaTiO 3 has been studied. For this purpose MnO 2 -doped BaTiO 3 ceramics have been prepared using a conventional ceramic method. The energydispersive X-ray spectroscopy investigations have revealed that the samples Ba-TiO 3 + x wt…
A highly luminescent and sensitive terbium complex of a ligand comprising of a phthalimide group appended to a DO3A moiety is an active pH sensor that is conditional on its previous pH.
The solution of boron in γ-iron is the foundation of the study of boron segregation in steel. There are three different viewpoints on boron solution in γ-iron: (i) substitutional type, (ii) interstitial type, and (iii) both types. In this paper, the solution type and the diffusion coefficient of boron atom in γ-iron a…
A collapsed elastomeric matrix of lightly cross-linked 1,2-polybutadiene (1,2-PB) was prepared from a self-assembled 1,2-polybutadiene-b-polydimethylsiloxane (1,2-PB-b-PDMS) of gyroid morphology after the removal of the PDMS block. No mesoporosity could be observed in the material in the dry state. However, in the gel…
The phase behavior of the binary blends of polystyrene-b-poly(L-lactide) chiral block copolymer (BCP*) and polystyrene homopolymer (HS) is found to be strongly dependent on the molecular weight (M(n)) of the HS. A helical phase is formed in the blends with low-M(n) HS due to an enhancement of helical steric hindrance.