Transition metal dichalcogenides have a layered structure and are therefore promising self-lubricating films. They can be considered as potential substitutes for carbon based films in various environmental conditions. In this work, a comparative atomic force microscopy study of co-sputtered Mo–Se–C and W–S–C films is performed to evaluate their nanotribological performances. Both films are allo...

Low carbon ferritic steel alloyed with Ti, Mo and Cu was hot rolled and interrupt cooled to produce nano-sized precipitates of copper and (Ti,Mo)C carbides. The steel had a tensile strength of 840 MPa, an increase in yield strength of 380 MPa over that of the plain carbon steel and reasonable ductility. Transmission electron microscopy and small angle neutron scattering were used to characteriz...

The structure of the title complex, (C(10)H(10)N(4))(C(10)H(9)N(4))[Mo(CN)(8)]·4H(2)O, consists of 4,4'-diazenediyldipyridinium and (4-pyridyldiazen-yl)pyridinium cations disordered over the same site, an [Mo(CN)(8)](3-) anion and four uncoordinated water mol-ecules. The cations (crystallographic symmetry, 2) and the [Mo(CN)(8)](3-) anion (crystallographic symmetry, 222) are arranged in an alte...

Microstructures and hardness of Mo heater chips brazed with Au–18mass%Ni were investigated. The reaction layer of Mo–Ni compounds forms at the brazed interface. Spherical MoNi compounds form initially, and they change columnar ones with increasing brazing time. The reaction layer grows abruptly when the brazing time is more than 5 minutes with the brazing temperature range from 930 C to 970 C. ...

While fossil oil reserves have been receding, the demand for diesel and gasoline has growing. In recent years, syngas of biomass origin emerging as a viable feedstock Fischer-Tropsch (FT) synthesis, process manufacturing synthetic diesel. This paper reports optimization quality to match FT synthesis requirement. The model maximizes thermal efficiency under constraint <math xmlns="http://www.w3....

A series of MoOx-modified Fe2O3 catalysts have been prepared in an attempt to make core−shell oxidic materials of the type MoOx/Fe2O3. It is conclusively shown that for three monolayers of Mo dosed, the Mo stays in the surface region, even after annealing to high temperature. It is only when the material is annealed above 400 °C that it reacts with the iron oxide. We show by a combination of me...

Single crystals of the iron tetrapolyvanadate Fe(2)V(4)O(13) and the iron polyvanadomolybdate Fe(2)V(3.16)Mo(0.84)O(13.42) were grown from Fe(2)O(3)/V(2)O(5) and Fe(2)O(3)/V(2)O(5)/MoO(3) melts, respectively. Single-crystal X-ray diffraction revealed that the two structures are closely related. Both contained isolated Fe(2)O(10) octahedral dimers with similar orientations. The unusual U-shaped ...

A composite cathode material for lithium ion battery applications, Mo-doped LiFePO(4)/C, is obtained through a facile and fast microwave-assisted synthesis method. Rietveld analysis of LiFePO(4)-based structural models using synchrotron X-ray diffraction data shows that Mo-ions substitute onto the Fe sites and displace Fe-ions to the Li sites. Supervalent Mo(6+) doping can act to introduce Li i...

Seven bipyridine adducts of molybdenum imido alkylidene bispyrrolide complexes of the type Mo(NR)(CHCMe(2)R')(Pyr)(2)(bipy) (1a-1g; R = 2,6-i-Pr(2)C(6)H(3) (Ar), adamantyl (Ad), 2,6-Me(2)C(6)H(3) (Ar'), 2-i-PrC(6)H(4) (Ar(iPr)), 2-ClC(6)H(4) (Ar(Cl)), 2-t-BuC(6)H(4) (Ar(t) (Bu)), and 2-MesitylC(6)H(4) (Ar(M)), respectively; R' = Me, Ph) have been prepared using three different methods. Up to th...

Mo-Si-B alloys are one of the most promising candidates to substitute Ni based superalloys in gas turbines. The optimization their composition can be achieved more effectively using multi-scale modeling materials behavior and structural analysis components for understanding, predicting, screening properties new alloys. Nevertheless, this approach is dependent on data single phases these focus i...