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While the consensus has been reached as to the lithospheric thinning beneath the North China Craton, the timing of this event remains controversial. Whether it took place during the Early Cretaceous or it extended over a period from late Triassic to early Cenozoic is a matter of hot debate. With aims of contributing to this issue, we performed geochronological and geochemical analyses on basalts of...
Hot-dip aluminizing and interdiffusion treatment were used to develop a TiAl 3 -rich coating on Ti–6Al–4V alloy. Interrupted oxidation at temperatures from 600 to 900°C and isothermal oxidation at 700 and 800°C of the coating were conducted. The coating markedly decreases the oxidation rate in comparison with the alloy at temperatures below 800°C during the interrupted oxidation. The oxidation...
High chromium cast irons (HCCIs) are widely used in many industrial processes that require materials possessing high resistance to wear and corrosion. In the Alberta oil sands industry, HCCIs are extensively used in slurry pumping systems as well as other processing and handling equipments. However, due to the very harsh mining environment and severe working conditions, conventional HCCIs do not always...
A double-layer lubricant film consisting of a multiply-alkylated cyclopentane (MAC) mobile lubricant on octadecyltrichlorosilane self-assembled monolayer (OTS-SAM) was prepared. Atomic force microscopy (AFM) was used to examine the film surface. MAC with thickness of 25Å was successfully coated on the OTS-SAM surface. MAC was discretely distributed on the OTS-SAM surface, and the film contained evenly...
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