The oxidation-sulfidation behavior of several nickel-base superalloys and a number of M Cr Al coatings on an IN-738 substrate has been examined after exposure to ten different O 2 S 2 mixed gas environments. Selected alloys have been tested in a thermogravimetric system in which the mass chang...
This scientific paper presents the results of a number of experimental laboratory researches to test a burner model in order to define the auto-carburation process at gaseous fuels combustion. For this purpose, a laboratory stand and sev... I Voiculescu,V Geantă,R Stefănoiu,... 被引量...
It has become increasingly more clear that, for a number of reasons, the titanium aluminides will be the first “new” metallic materials introduced into commercial high temperature applications (probably aircraft gas turbines and automobiles engines) in many years. As a result a very ...
However, a great number of microcracks penetrating the whole inner oxide layer were observed (Fig. 9.6). The AE test showed that the oxide scale did not crack during the isothermal oxidation at 1100°C for 1 hour (Fig. 9.7) [49], but the scale cracked during the cooling stage. Cracks ...
The oxide shell decreases the aluminium dislocation nucleation stress by increasing the activation volume and the number of nucleation sites. Superplasticity of the amorphous oxide shell is due to viscous flow as a result of healing of the broken aluminium–oxygen bonds by oxygen diffusion, below a...
Synthesis of high-quality graphene with a pre-determined number of layers A simple and effective strategy is proposed to tune the number of graphene layers by selecting suitable starting graphite, using a chemical exfoliation met... ZS Wu,W Ren,L Gao,... - 《Carbon》 被引量: 872发表: 200...
Scientific Reports volume 12, Article number: 14108 (2022) Cite this article 4096 Accesses 30 Citations Metrics details Abstract Lubrication has become essential in enhancing engine efficiency in the era of rapid globalising. The tribological, oxidation and thermal conductivity properties of an engine ...
In addition, the number of reports on unaccounted high nitrogen losses in wastewater treatment is gradually increasing, indicating that anaerobic ammonium oxidation may be more widespread than previously assumed. The recently developed nitrification systems in which oxidation of nitrite to nitrate is ...
whereIis the oxidation current of Fe(CN)64−(A),zrepresents the number of electrons transferred (1 for the oxidation of Fe(CN)64−),Fdenotes the Faraday constant (96,500 C mol−1),Ais the geometry surface area of the electrode (2.54 × 10−4 m2), andCbis the bul...
(Supplementary Table1). The oxidation states of Os single-atom were estimated for all possible models by normalizing valence electron number (by Bader charges analysis) to those of bulk compounds (Os, Os3O, and OsO2) with known oxidation states (Supplementary Fig.30). The results were shown...