Materials Literature
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Poly (ethylene terephthalate)/poly (trimethylene terephthalate) (PET/PTT) blends were prepared and their melting and crystallization properties were investigated by differential scanning calorimetry (DSC). The glass transition temperatures suggest apparently that PET and PTT have good miscibility at amorphous state. T…
A novel kind of poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT/PSS) composite was synthesized through chemical oxidation polymerization in the presence of fluorescent yellow GG (FYGG) as the functional co-dopant and Poly(vinyl alcohol) as the film-forming additives. The as-prepared composite was found…
Titanium alloys offer excellent corrosion resistance, good strength to weight ratio, is nonmagnetic and biocompatible. This allows them to be used in demanding applications and specialised industries ranging from aviation to medicine. However, at high temperatures the metal is chemically reactive which requires severa…
With K2ZrF6as the main film-forming material, Ni2SO4• 6 H2O as colorants, K2TiF6for coloring promoters, chrome-free conversion and treatment for Al6063 at room temperature has been developed, fluid can be of steady function without adding oxidants additionally, fast film forming within 6 minutes. By adding Ni element…
Abstract This article provides a detailed discussion on various recommended heat treating practices, including normalizing, annealing, austenitizing, quenching, tempering, stress relieving, preheating, and martempering, for various low- and un-alloyed cold-work hardening tool steels. The steels discussed include water…
The use of composite materials in aircraft structures have been increasing for the past decade. The anisotropic and heterogeneous nature of composites remains a major challenge to the design and analysis of composite aircraft structures. Composite structures require a different design approach compared to the design o…
Therapeutic compression gloves are commonly used in the therapy treatment for arthritis patients, treatment of hypertrophic scars on burned skin and in the management of lymphedema. In this research, the elastic properties of three commercial fabrics commonly used for producing therapeutic compression gloves were inve…
A new bacterial cellulose regenerated cellulose membrane (RBC) has been prepared by phase inversion method in LiCl/DMAC solution. The effects of coagulation concentrations on the physical properties of the RBC membranes were studied and optimized. Features of the RBC of membranes obtained using 0%~40% N,N-Dimethylacet…
Nanocrystalline diamond(NCD) coated SiC balls were applied in a ball-on-disk tribometer. After seeding in an ultrasonic bath containing nanometer diamond powders, 2.2 μm thick NCD films were deposited on sintered 3 mm diameter SiC balls at 600℃ in a 2.45 GHz microwave plasma CVD system. Bare ZrO₂ and SiC balls were pr…
Due to ecological and sustainability constraints, in late years we see great achievements in green technology in the field of materials science. The development of high-performance biocomposites (made from natural resources) is increasing worldwide. The challenge in working with natural fiber reinforced composites is…
The crystalline structure of lepidolite is introduced in this paper, its application in lithium ion battery is paid attention. Because of the extraction difficulties from brines in China, it is necessary to take advantage of lepidolite resources, driven by the huge economic benefit and social benefit requirements. The…
Firefighter uniform made of various flame retardant materials is put as the object. Analyzing the thermal protective performance of different composite structures covering outer fabrics, lagging materials and comfortable layer materials, discuss the best combination of supporting structures. Adoption flash fire simula…
The micron-sized flake-shaped carbonyl iron powder (FS-CIP) was prepared by wet ball milling method with ethanol as process control agent (PCA). Influence of the ratio of ball to powder on the microstructure, microwave electromagnetic parameter and reflectivity of the FS-CIP were studied. The results show that, with t…
Diamond represents a well-known gemstone and traditional industrial material in applications such as cutting and polishing. However, since about 20 years ago, diamond is rising as a new semiconductor material with many unique properties, unrivalled by other materials. Research and development during these years was in…
The effects of the diameters of single-walled carbon nanotubes (SWCNTs) (7.83 Å to 27.40 Å) and temperature (20 K–45 K) on the equilibrium structure of an argon cluster are systematically studied by molecular dynamics simulation with consideration of the SWCNTs to be fixed. Since the diameters of SWCNTs with different…
Abstract This article introduces the general principles and applications of heat treatment to iron castings. It provides a detailed discussion on the heat treatment processes, namely, stress relieving, annealing, normalizing, throughhardening, and surface hardening for various types of cast irons. These include gray i…
The first detection and characterization of magnetic interaction between two 4f electronic systems in the dinuclear "inverted-sandwich-type" phthalocyanine complex with terbium ions and that of dysprosium ions are presented. Temperature dependent magnetic measurements for the diterbium complex, (μ-phthalocyaninato)bis…
Development of biodegradable and biocompatible films based on the proteinpolymer with strong antibacterial activities is gradually obtained extensive concern in the world. The aim of this study was to evaluate the antioxidant and antibacterial properties of gelatin nano films merged with different concentrations of Za…
Time dependence of absorption voltages (Vabs) in different types of low-voltage X5R and X7R ceramic capacitors was monitored for a maximum duration of hundred hours after polarization. To evaluate the effect of mechanical defects on Vabs, cracks in the dielectric were introduced either mechanically or by thermal shock…
In this paper, the performance of a 4×4 cm2Bismuth Telluride based thermoelectric generator with 126 thermocouples connected in series is analyzed experimentally under different environmental conditions. The hot junction of the thermoelectric generator is exposed to solar and candle heat and the cold side is exposed t…