On the Substance of Civilization in Human Society Entering into the Nanomaterials Age

Abstract To date, the developmental stages of substance civilization in human society have gone through the Stone Age, the Bronze Age, the Iron Age, the Steel/Cement Age, and the Silicon Age based in the dividing standard (typical materials) proposed by one of the authors. Further, we believe that human society has entered into the Nanomaterials Age. The developmental history of nanomaterial, the evolutionary process of nanomaterials during the Silicon material age, and the reasons that the world has entered the Nanomaterials Age are analyzed and discussed herein. In addition, we have identified the time when human society entered the Nanomaterials Age. Therefore, the theory of six eras of the development of human substance civilization has a complete exposition

Calculated mixing enthalpies of 11 IIB-IVB and IIB-VB binary alloy systems using a subregular model

There have been no theoretical calculations of the mixing enthalpies for group B metal alloy systems using the famous Miedema theory or from first principles. Therefore such systematic calculations for the 11 group IIB－IVB and IIB－VB binary alloy systems are performed for the first time using a subregular model. The results show that the agreement between the calculations and experimental data is pretty good and could be accepted from the theoretical or experimental points of view. It can be concluded from the results that the subregular model can be used for calculating the mixing enthalpies of the group B alloy systems, at least for the IIB－IVB and IIB－VB alloy systems

Influence of Alloying Elements on the Surface Morphology of Electroless Deposits for Ni-P Based Alloy Systems. Einfluss von Legierungselementen auf die Oberflächenmorphologie von stromlos abgeschiedenen Legierungssystemen auf Ni-P-Basis

Englisch / Deutsc