نتایج جستجو برای: ti3sic2
تعداد نتایج: 170 فیلتر نتایج به سال:
Ti3SiC2 bulks were synthesized using Si melt infiltration into porous preforms with different chemical compositions. The initial composition of the preforms was prepared on the basis of the TiC, 2TiC/Ti, 3TiC/0.3Si, 3Ti/2C (carbon active) and 3Ti/2C (graphite) formulations and was pressed into pellet using a cold press method. The Si ingots were weighed 3 times the stoichiometric value and in o...
The present thesis addresses two research areas related to film growth in a highly ionized magnetron sputtering system: plasma characterization, and thin film growth and analysis. The deposition technique used is called high power pulsed magnetron sputtering (HPPMS). Characteristic for this technique are high energy pulses (a few Joules) of length 50-100 μs that are applied to the target (catho...
This Thesis explores synthesis and characterization of new MAX phase alloys (M = early transition metal, A = A-group element, and X = C or N), based on incorporation of M and X elements previously not considered. My primary focus is on M = Mn for attaining magnetic properties, and on X = O for potential tuning of the transport properties. A recent theoretical study predicted (Cr1-xMnx)2AlC MAX ...
•A new strategy for designing efficient heterogeneous catalysts is presented•The proposed WAP mechanism avoids the Sabatier conflict of rate-limiting step•The catalyst, Au/TiC(111), shows high efficiency and durability•A reactive substrate no longer key to a WGS catalyst The cardinal rule in catalysis Principle, believed be ubiquitous unavoidable design. This paper points out that it possible a...
•Multidimensional topological optimization design•Preparation of high-temperature-resistant ceramic fiber paper•Radar-infrared multispectrum stealth performance metastructure•Near-room-temperature integration molding In the development aerospace technology, a multifunctional technology compatible with infrared and radar is one most feasible ways to improve survival military equipment under high...
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