Materials Literature
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Aluminium-doped zinc oxide thin films were deposited from zinc acetylacetonate and aluminium acetylacetonate at various aluminium concentrations and deposition temperatures by ultrasonic spray pyrolysis. The structural and morphological properties and elemental composition of these films were studied by X-ray diffract…
SUMMARY Dry electrodes of a smart shirt for measuring biological signals were prepared by the additive printing method using a stretchable conductive paste with Ag fillers loading. Interfacial impedance between the electrode and skin depended on the contact pressure of electrode and the moisture of stratum corneum. Wh…
Understanding of the initial stage of nanowire growth on a bulk substrate is crucial for the rational design of nanowire building blocks in future electronic and optoelectronic devices. Here, we provide in situ scanning electron microscopy and Auger microscopy analysis of the initial stage of Au-catalyzed Ge nanowire…
The growing family of two-dimensional (2D) materials that are now available can be used to assemble van der Waals heterostructures with a wide range of properties. Of particular interest are tunnelling heterostructures, which have been used to study the electronic states both in the tunnelling barrier and in the emitt…
In this study, the powder mixture which consists of Cu-Fe-Co was produced by using the method of hot pressing technique. In addition, effect of heat treatment process on microstructure and mechanical properties of this alloy was investigated. Following the hot pressing process applied on the samples, heat treatment wa…
In this paper, a study of a diffusion zone at the nickel/aluminum interface is carried out. Bimetallic samples constructed from pressed plates of Nickel and Aluminum have been annealed in a vacuum furnace at a temperature above the melting temperature of aluminum. Formation patterns of diffusion zones are investigated…
Abstract The slotted center guide bolt of the center guide feature of the lower part of the outer shell of an annular combustion chamber was found fractured in a heavy-duty gas turbine engine used for power generation, after approximately 5.500 operating hours. The incident was a one-off event and not a recurring inci…
The aim of this research paper is to present laser surface treatment technologies, investigation of properties of the HS6-5-3-8 high-speed steel \ alloying with ceramic particles using High Power Diode Laser. Selection of laser operating conditions is discussed, as well as beam face quality after remelting, hardness,…
Three pyromellitic diimide(PMDI)‐based polymers—poly(pyromellitic diimide‐co‐bithiophene) [poly(PMDI‐BTh)], poly(pyromellitic diimide‐co‐tetrathiophene) [poly(PMDI‐TTh)], and poly(pyromellitic diimide‐co‐benzodithio‐ phene) [poly(PMDI‐BDTTh)]—are synthesized to study the influence of different thiophene‐containing ele…
Silicon nanocrystals embedded in silicon oxide that show room temperature photoluminescence (PL) have great potential in silicon light emission applications. Nanocrystalline silicon particle formation by laser irradiation has the unique advantage of spatially controlled heating, which is compatible with modern silicon…
Enterographa confusa is described as new to science from Cuba. It is characterized by a lichenicolous habit, punctiform ascomata immersed in the host thallus, (6–)8-spored asci and 3-septate ascospores of 17–23 × (2.5–)3 µm with a distinct gelatinous sheath of 1.5(–2) µm. The new species was discovered by chance in th…
The paper presents results of a two-stage study on the tribocorrosive wear of ADI alloy cast iron containing Ni and Cu.In the first stage of the wear tests with use test rig type pin-on-plate, there were determined the parameters of the process of tribocorrosion of the ADI cast iron in 3.5% NaCl solution.In the second…
In this paper, a simple and effective method for gold recovery is described. The paper describes a way to recover gold onto activated carbon from a synthetic solution of gold(III) chloride. The method can also be used on nickel(II) as well as copper(II) chloride of where the metal ion ratios are comparable to the meta…
Chitosan/cellulose-based beads (CCBs) for the affinity purification of histidine-tagged proteins were prepared from chitosan/cellulose dissolved in ionic liquid as a solvent, and their structures were characterized by Fourier transform infrared spectroscopy, transmission electron microscopy, and thermogravimetric anal…
Compared with other field-emission nanomaterials, 1D ZnO nanomaterials have some unique properties—such as high melting point, high thermal and chemical stability, and ambient insensitivity—which means they have promising potential applications as field emitters in harsh environments. This work proposed a water-assist…
Semiorganic 4-dimethylaminopyridine potassium chloride 2-aminopyridine (4-DMAPK2AP) crystal has been grown successfully by using slowevaporation solution growth technique. Powder x-ray diffraction shows the 4-DMAPK2AP crystal has good crystalline nature. Single crystal XRD shows that thegrown 4-DMAPK2AP is cubic cryst…
In a martensitic-bainitic microalloyed steel, the effect of hydrogen on fatigue crack growth was studied using rotary bending fatigue tests.The steel was subjected to a rapid thermal cycle to get a microstructure similar to that which would be formed within the coarse-grained heat-affected zone of a weld.Crack growth…
Mizuhopecten yessoensis, one of the most highly favored scallops on the international market, has suffered from massive summer mortalities. Water temperature is an important environmental stressor which has significant effects on the physiological and biochemical response of scallops. Heat shock protein 90 (HSP90) pla…
The concept of ferrovalley materials has been proposed very recently. The existence of spontaneous valley polarization, resulting from ferromagnetism, in such hexagonal 2D materials makes nonvolatile valleytronic applications realizable. Here, we introduce a new member of ferrovalley family with orthorhombic lattice,…
DOUBLE-LAYERED ALUMINIUM TUBESThis work deals with the tube sinking process.The main purpose is to develop a process chain for the manufacturing of ultra-thick-walled tubes with the lowest possible diameter.The base material is a hot extruded tube consisting the aluminium alloy AA6063 with the dimensions 9,9 ×1 mm.The…