The oxygen interaction with Ni silicide surfaces in a wide range of composition, from NiSi2 to Ni3Si, has been investigated at room temperature by AES and XPS techniques. It has been found that the Si oxidation is enhanced over that of pure Si in all the Ni-Si compounds, and that the...
Nb-silicide-based alloys have the potential to replace Ni-based superalloys in future aero engines to enable the latter to meet environmental and performan... Hernández-Negrete,Tsakiropoulos - 《Materials》 被引量: 0发表: 2019年 (108203)Hot corrosion of Fe-Cr-Ni multi-principal element alloys...
Accordingly, Figure 1.11 represents only tendencies of the oxidation resistance of various ceramics. The most insensitive materials are silicon compounds such as silicon borides, molybdenum disilicide (MoSi2), silicon carbide, and silicon nitride. These materials form a relatively dense silica layer on...
Niobium-silicide based composites resistant to high temperature oxidation A ratio of the sum of atomic percentages of niobium and tantalum present in said niobium silicide refractory intermetallic composite to the sum of atomic percentages of titanium and of hafnium present in said niobium silicide refra...
Below this oxide layer, there is a layer of silicides formed as a result of depletion by aluminum, which forms a secondary oxidation protection... P Novák,K Nová - 《Materials》 被引量: 0发表: 2019年 Oxidation behaviour of NiAl intermetallics with embedded Cr and Mo The isothermal oxidati...
An oxidation-resistant coating is described, formed of an alloy containing: about 40 to about 50 atom % aluminum and about 0.5 atom % to about 3 atom % tantalum; with a balance of nickel; cobalt, iron, or combinations thereof. The coating may also include chromium and a precious metal, ...
The addition of hydrazine sulfate to the plating bath prevents anodic oxidation of Co (II) to Co (III). It also causes an increase in the cathode ... A Krohn,TM Brown - 《Journal of the Electrochemical Society》 被引量: 29发表: 1961年 Anodic oxidation of molybdenum and tungsten in alco...
The silicide‐mediated phase transformation of amorphous to crystalline silicon was observedinsituin the transmission electron microscope. Crystallization ... C Hayzelden,JL Batstone,RC Cammarata - 《Applied Physics Letters》 被引量: 410发表: 1992年 Effects of crystallization on the electrical properties...
Oxidation resistant coatings for niobium-based silicide composites An environmentally resistant coating (34) for improving the oxidation resistance of a niobium-based refractory metal intermetallic composite (Nb-based RMIC) at high temperatures, the environmentally resistant coating (34) c... JI-CHENG ZH...
Nanoscale materials modified by crystal defects exhibit significantly different behaviours upon chemical reactions such as oxidation, catalysis, lithiation and epitaxial growth. However, unveiling the exact defect-controlled reaction dynamics (e.g. oxida