Materials Literature
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Melting method for synthesizing BC x N compounds has been improved, where the starting material is a mixture containing C and BN and wholly melted without reacting the container wall. Product is composed of two phases of BC x N compounds. Their structures are cleared to be of the hBN-type and of the graphite-type, res…
Ti6Al4V is a difficult to machine alloy with low cutting efficiency and server tool wear. A series of orthogonal milling tests with coated and uncoated carbide insert was carried out. The tool life predictive models based on orthogonal experiment were developed. Finally, the cutting parameters for both tools in Ti6Al4…
This study is devoted to the evaluation of a new innovative micro structured fuel for future pressurized water reactor. This fuel should have the potential to increase the safety margins, lowering fuel temperatures by adding a small fraction of a high conductivity second phase material, the matrix, in the oxide fuel p…
A solvothermal method to synthesize barium titanate nanoparticles is employed. In this method many raw materials such as oleic acid, surfactant, sodium hydroxide, alkali barium acetate, alcohol, tetrabutyl titanate are used. When the samples are collected, oleic acid which has mush an account will cover the whole part…
The rocket propellant ignition system uses electro-explosive device actuated by wire electrode. Those wires are usually made by Fe-Ni based alloy with controlled thermal expansion inserted into a ceramic feed-through and are connected to thin resistive wire which is heated through the passage of an electrical current…
Current delivery systems for vaccines present major logistical problems when large populations need to be vaccinated within a short time period, such as in the case of a pandemic. An efficient and effective method for pandemic vaccination is the driving force of the research performed by our group. The proposed altern…
The fast development of SAW requests higher quality surface of CVD diamond films. Nowadays the mechanical lapping method is one important way to polish CVD diamond films, but the processing cost is high due to the low machining quality and efficiency. This paper reports a new accelerant lapping technology base on mech…
Delivery of therapeutic compounds to the brain is limited, because due to their molecular size they cannot cross the blood-brain barrier (BBB). Focused ultrasound (FUS) after administration of microbubbles into the blood-stream has been shown to open the BBB locally, non-invasively and reversibly. In this study, we in…
As the dimensions of parts become smaller, understanding the mechanical properties of these small components was becoming more important. Till present day, the methods and technology used to investigate the deformation behavior in nanoscale were still lacking. In this paper, the specimens were single crystal copper wi…
The extraction pyrolytic method is used to fabricate thin (100–300 nm) films of the lanthanum manganites La 0.7 Sr 0.3 MnO 3 on fused silica substrates. The films are deposited on the substrate using the alternate sessions of the centrifuging of solution and pyrolysis. The annealing of thin films at temperatures of gr…
A refined one of our exactly solvable trapezoidal barrier potential model [Thin Solids Films, 414 (2002) 136)] for metal-insulator-metal tunnel junctions has been presented. According to the refined model, the longitudinal kinetic energy (E xL ) and the effective mass (m * L ) of the electrons in the electrode on the…
The sorption of americium (III) by sorbents on the basis of dibenzo-, dicyclohexano-18-crown-6, and their diisooktil- and ditert-butil- substitutors from solutions of HNO3 of various concentrations and from solutions of HNO3 contained trichloracetic acid was studied in the present investigation, including the kinetics…
In this paper the formation and growth of bubbles during the melt foaming process are studied from microcosmic aspect. The forming process of liquid film between two neighboring bubbles is also analyzed. According to the cavity effect of ultrasonic wave, the effect of ultrasonic wave on the fragmentation of cell struc…
In its regulations for commercial power reactors, the U.S. Nuclear Regulatory Commission (NRC) specifies criteria to ensure that fuel cladding maintains a degree of post-quench ductility (PQD) during a postulated loss-ofcoolant accident (LOCA). The current criteria, 2200ºF (1204ºC) and 17-percent equivalent cladding r…
Abstract In LCD‐Displays wird die Helligkeit jedes farbigen Sub‐Pixels durch die angelegte Spannung bestimmt. Diese legt die Ausrichtung der Flüssigkristallmoleküle in jedem Bildpunkt und damit die Wirkung auf das polarisierte Licht fest, das den Flüssigkristall durchdringt. TFT‐Displays, die zu den Aktiv‐Matrix‐Displ…
The model of the generalized linear micropolar magneto-thermoviscoelastic theory is presented in this paper. It can be applied to the coupled theory as well as to five generalizations, such as L-S theory, G-L theory, H-I theory, G-N theory of type (II) and C-T theory. If some parameters in this model are taken as give…
Microscale laser shock peening (μLSP) is a novel surface treating technology which oriented to microscale metal components in MEMS. Beneficial compressive residual stress is induced at the shocked region to improve the performance of microstructure based on wave-solid interactions. In this paper, the basic principle o…
Abstract In order to increase the built‐in voltage of hydrogenated amorphous silicon solar cells, in this work we exploit the use of very thin (<5 nm) high conductivity layers at the interfaces between the electrodes and the doped regions of an amorphous silicon n‐i‐p stacked structure. The idea starts from results of…
We have observed the scanning tunneling microscope (STM) light-emission spectra of partially oxidized Ag(110) surfaces with atomic spatial resolution. The STM image visualized Ag–O chains along the [001] direction as light rows, separated by a distance n ×a from adjacent light rows. Here, n is an integer between 2 and…
Apply the finite element software of ANSYS/LS-DYNA to simulate the rolling process of pairs of cross wedge rolling shaft and to analysis the stress field of the rolling at the stage of stretcher and to analysis the distribution of strain field. what's more, it can make a clear analyss of the metal's situation such as…