Understanding the Clean Interface Between Covalent Si and Ionic Al2O3Hongjun XiangJuarez L. F. da SilvaHoward M. BranzSu-Huai WeiAPS March Meeting Abstracts
With the presence of an oxide constituent, the bonding of interface is changed from the delocalized metallic bonding to ionic or covalent bonding19,20. Experiments indicate that the special ORs with low-indexed planes between metal and oxide crystal exist in metal/oxide interface21. It has been ...
The material removal rate (MRR or wear rate) depends strongly on the material being polished. Depending on the type of atomic bonding, the crystal structure and the microstructure of the workpiece and the abrasives, the wear mechanisms may differ [4]. The ionic and/or covalent atomic bonds of...
Ionic character of oxygen and its local structure in silicate glasses containing alumina. Phys. Chem. Glasses 42, 287–291 (2001). 47. Hirao, K., Matsuoka, J. & Soga, N. Inelastic deformation and structure of borate glasses. J. Non-Cryst. Solids 112, 336–340 (1989). 48. Yuan, F...
The result of the calculation indicates that the ionic bonding between Al and O ions, and the covalent bonding between Al and the surrounding cation, are strengthened by the presence of Ln ions. A correlation is found between the creep resistance and product of net charges of the constituent ...
surface cleaning/ Cu/(0001)Al 2O 3 interfaceGrowth of Cu films on (0001)Al2O3 substrates can result in metallic Cu—Al or ionic-covalent Cu—O bonds at atomically abrupt interfaces. The type of bonding depends on the substrate cleaning procedure prior to film growth. Cu films deposited ...
Furthermore, density of states and electron density difference analysis indicate that the dominant interfacial adhesion mechanism for the Ni Al interfaces is the formation of mainly metallic Ti Al and Ni Al bonds, while the Ti O interface exhibits mixed covalent/ionic character with higher ...
The variation of the electronic structure in the family Al 2 O 3 -AION-AIN demonstrates the changes associated with the valence band chemistry of changing the anion from oxygen to nitrogen, and the bonding from mixed ioniccovalent in the direction of greater covalency. These changes in the ...
As one of the emerging nanomaterials, boron nitride nanotubes (BNNTs) provide promising opportunities for diverse applications due to their unique properties, such as high thermal conductivity, immense inertness, and high-temperature durability, while th
Equation (1) was designed to model the interaction of covalent bonds between atoms and the interaction of van der Waals (vdW) in the wear-resistant layers [9]. Additionally, Equation (1) describes all bonded and non-bonded interactions in twelve forms. The first ten terms in Equation (1)...