Showing papers in "Journal of Alloys and Compounds in 2005"

TL;DR: In this paper, structural differences in LiBH 4 before and after the melting reaction at approximately 550 K were investigated to clarify the experimental method for the confirmation of reversible dehydriding and rehydriding reactions.

TL;DR: In this paper, a red phosphor, CaMoO 4 :Eu 3+, has been developed for white light emitting diodes (LEDs), which was prepared by using oxides in air and its luminescent properties have been investigated.

TL;DR: In this paper, the effects of the intermetallic compound layer on the electrical and mechanical properties have been investigated under various annealing conditions, and two kinds of intermetallics layer were formed in the joints interface and identified by AlCu and Al 2 Cu.

TL;DR: In this paper, the authors measured the reaction heat of the mixture of Mg(NH2)2 and 2LiH in a differential scanning calorimeter, and the overall reaction heat measured in the differential scan was 44.1 kJ/mol H 2, while the heat-of-desorption of H2 in the higher pressure plateau was 38.9kJ/m H 2.

TL;DR: In this article, the size of the majority of ZnO particles varied between 20 and 50 nm, thus indicating that particle and crystallite sizes in zinc oxide powders were approximately equal.

TL;DR: In this paper, aluminum-based metal composites doped with gallium, indium, zinc, or tin were studied by powder X-ray diffraction, DTA, and EDX.

TL;DR: In this paper, the use of ruthenium(0) nanoclusters as catalyst in the hydrolysis of sodium borohydride liberating hydrogen gas has been reported for the first time.

TL;DR: In this paper, the high-pressure structural behavior of CeO2 and PrO2 has been investigated by synchrotron X-ray diffraction at pressures up to 20 and 35 GPa, respectively.

TL;DR: In this article, the micro-arc oxidation coatings can be divided into a porous loose outer region consisting predominantly of γ-Al2O3 and Al Si O phase and a dense internal region consisting mainly of α-Al 2O3.

TL;DR: In this article, high energy ball-milling of Mg or MgH 2 with benzene or cyclohexane as additives has been studied to prepare nanosized magnesium which reversibly absorbs hydrogen with high capacity even under mild conditions, and the behavior of hydrogen absorption has been extensively evaluated by differential scanning calorimetry (DSC) measurements and volumetric techniques.

TL;DR: A fine-grained AZ91 alloy was prepared by equal channel angular pressing (ECAP) and the evolution of the microstructure and the deformation behavior were investigated as a function of the number of ECAP passes.

TL;DR: In this article, the feasibility of solution combustion process for the synthesis of rare-earth activated insulating materials at low temperature (350-500 degrees C) and in a very shorttime (< 5 min).

TL;DR: In this article, the hardness and wear resistance of the composites were higher than those of as-cast Mg ingot and increased with increasing amount of B 4 C particulates from 10 to 20 vol.%.

TL;DR: In this article, the PdH x system is used to investigate possible benefits of hydrogen storage in nanoparticulate matter, and it was found that the SSA can only be maintained if processing or H-adsorption temperatures did not exceed T ∼ 50-100°C.

TL;DR: In this paper, the thermoelectric properties of single-crystalline reduced and La-doped SrTiO 3 were investigated along the [1 − 0 − 0]-axis from room temperature to 773 K.

TL;DR: In this paper, nano-sized CaMoO 4 powders were successfully synthesized at low temperatures by a modified citrate complex method using microwave irradiation, which showed an ordinary tendency to increase with the temperatures.

TL;DR: Li2NH was synthesized by decomposing of LiNH2 at 673 K under vacuum as discussed by the authors, and it absorbed and desorbed 6.0 −7.0% of hydrogen at 573 −673 K in the pressure range of 9 − 0.001 -MPa.

TL;DR: The hydrogen storage properties of zeolites X, Y, A and Rho containing various exchangeable cations have been investigated in this article, showing that hydrogen uptake relates closely to the measured BET surface area.

TL;DR: In this article, the effect of Ti substitution on the thermoelectric properties of (Zr, Hf)NiSn half-Heusler compounds, TiX(Zr0.5Hf 0.5)0.998Sb0.

TL;DR: In this paper, afterglow properties of the two phosphors were investigated and it was revealed that both phosphors show two emission peaks that are caused by the different emitting centers Eu 2+ held in the host lattice.

TL;DR: In this paper, a direct electroless Ni-P plating on the AZ91D magnesium alloy from a plating bath containing sulfate nickel was investigated by using XRD and SEM.

TL;DR: In this article, the melting points, wettabilities, mechanical properties and reliabilities of joints with Cu were investigated by changing Bi or Zn concentration, and the results showed that adding Bi could obviously improve wettability of Sn-Zn base alloys with decrease melting point.

TL;DR: The grain refining efficiency of these two master alloys has been compared with that of the conventional Al-5Ti-1B master alloy on Al and Al-7Si alloy at different addition levels as discussed by the authors.

TL;DR: In this article, the interfacial reactions of Sn-Zn based solders and a Sn-Ag-Cu solder have been compared with a eutectic Sn-Pb solder.

TL;DR: Tb 3+ /Dy 3+ and Eu 3+/Sm 3+ doped rare-earth borate glasses have been synthesized and characterized in this article, where the enhancement of Tb 3 + green emission is observed, and the sensitization is related to the efficient energy transfer from Dy 3+ to Tb3+.

TL;DR: In this paper, the thermal properties of UO2 and PuO2 were investigated by the equilibrium molecular dynamics simulations between 300 and 2000 K using the Born-Mayer-Huggins interatomic potential with the partially ionic model (PIM).

TL;DR: In this article, the catalytic effect of Ni nano-particle and Nb oxide on hydrogen desorption (HD) properties in MgH 2 prepared by mechanical ball milling under a hydrogen gas atmosphere of 1 MPa.

TL;DR: In this paper, polygon-and bar-shaped precipitates were observed in the extruded alloy and the increase of yield strength at room temperature and ultimate strength at elevated temperatures after the aging process was attributed to the strengthening effect of these precipitates.

TL;DR: The ground-state crystal structures of the boron hydride series ABH4 (A = Li, Na, K, Rb, Cs) have been established from first principle projected-augmented plane-wave calculations by considering different possible structural arrangements and subjecting the test structures to structural relaxations as mentioned in this paper.

TL;DR: In this paper, the interfacial reaction, morphology of intermetallic compound (IMC) and shear strength between the Sn-3.5Ag-0.7Cu and Ni ball grid array (BGA) substrates during reflow at 255°C for up to 20min were investigated.