CdTe is considered as a viable absorber material for the thin film solar cell because of its excellent material characteristics as well as simple, low cost manufacturability. Despite a theoretical 29% efficiency prediction of the cell, its high work function and coefficient of thermal expansion...

The wear phenomenon in friction clutches involves a variation in the contact pairs characteristics, defining a decay of transmissible torque properties. For multidisk clutch packs installed in electro-actuated differentials, the friction torque evolution allows to define how wear decay can...

The record price development in commodity markets during the economic boom period lasting from early 2000 to mid 2008 highlighted a perceived scarcity particularly in metal markets that contrasted the preceding period beginning in the late 1970s of largely abundant availability and falling real...

Molybdenum thin films were sputter deposited under different conditions of DC power and chamber pressure. The structure and topography of the films were investigated using AFM, SEM and XRD techniques. Van der Pauw method and tape test were employed to determine electrical resistivity and...

Non-oxidative decomposition of natural gas to COx-free hydrogen production over commercial nickel-molybdate hydrotreating catalysts with different Ni loading from 5 to 40wt% were studied at 700 °C. The catalysts were characterized by XRD, BET, TEM, Raman spectroscopy and TG-DTA analysis. The...

In this paper, we develop a tractable network model and computational approach for the design of medical nuclear supply chains. Our focus is on the molybdenum supply chain, which is the most commonly used radioisotope for medical imaging utilized in cardiac and cancer diagnostics. This topic is...

Mo-modified catalysts of Mo/TNU-9 were prepared for the non-oxidative aromatization of methane. The effects of different Si/Al ratios, Mo loadings and temperatures on the catalytic performance of Mo/TNU-9 catalysts were also investigated. Furthermore, for comparison, Mo/ZSM-5 was synthesized for...

Barriers to trade come in a variety of forms. This paper examines one such barrier, export restrictions, and how it impacts trade and global supply in selected strategic metals and minerals. The metals and minerals examined in the paper are of particular interest for a number of reasons: they...

Favored structures of SiOn monolayers on Mo(112) surface have been studied using the total energy minimization technique based on DFT semirelativistic approach. In the [SiO4] complexes, which form the c(2 × 2) silica structure on the Mo(112), the bonding of the Si atoms with the surface is...

Der Beitrag geht der Entwicklung der Kupfer- und Molybdänindustrie der neunziger Jahre in Armenien nach und stellt die verschiedenen Lagerstätten vor. Insbesondere die bedeutenden Molybdänvorkommen könnten für die künftige Entwicklung des Außenhandels eine wichtige Rolle spielen. Ferner...

A relatively simple, automated system for the rapid, efficient and safe routine production of 99Tc(m)O4 from 99Mo03 by the metyl ethyl ketone (MEK) extraction technique is described. The 4 phases of the extraction process (bubbling of air, phase separation, drawing off of 99Tc(m) in MEK, and...