The two components of both magnesium spectra have equal intensity; in the oxygen spectrum the high energy peak is the most intense: these observations are rationalised using a simple molecular orbital model based on the MgO610−unit. It is necessary to consider the interactions of this unit ...
Previous work has used X-ray photoelectron spectroscopy to examine the surface compositions of aluminium-alloy substrates subjected to various surface pretreatments prior to bonding. It was proposed that the presence of magnesium in the oxide structure adversely affected the service-life of adhesive ...
To overcome the shortcomings of magnesium alloys such as low strength at an elevated temperature and poor corrosion resistance, the fabrication of Mg/Al co... JC Liu,J Hu,XY Nie,... - 《Materials Science & Engineering A》 被引量: 3发表: 2015年 Effect of Inter-Metallic Phases on the B...
Theenergiesofsilver(Ag)atomsinAgnanoparticlessupportedondifferentceriumand magnesiumoxidesurfaces,determinedfrompreviouscalorimetricmeasurementsofmetal adsorptionenergies,wereanalyzedwithrespecttoparticlesize.Theirstabilitywasfoundto increasewithparticlesizebelow5000atomsperparticle.Silvernanoparticlesofanygivensize ...
When aqueous solutions of nickelous nitrate are added to magnesium oxide powder, a basic salt with the idealized formula of Ni 2 (OH) 3 NO 3 forms and bonds the magnesium oxide aggregate together. A mechanism for the formation of the basic salt and its subsequent bonding to the magnesium ...
The analyses have been conducted before and after exposure of the specimens to water, the main hostile environment that structural adhesive joints usually encounter. It is suggested that the concentration of magnesium, in the form of magnesium oxide, on the pretreated aluminium-alloy surface may be...
Transient Liquid Phase Bonding of Magnesium Alloy (AZ31B) and Titanium Alloy (Ti6Al4V) Using Aluminium Interlayer Xiong Jiangtao et al. Transient Liquid Phase Bonding of Magnesium Alloy (AZ31B) and Titanium Alloy (Ti6Al4V) Using Aluminium Interlayer[J], Rare Metal ... J. Xiong,F. Zhang,J...
The main objective of this work was to assess the antimicrobial properties and the dentin-bonding strength of novel magnesium phosphate cements (MPC). Three formulations of MPC, consisting of magnesium oxide and a phosphate salt, NH4H2PO4, NaH2PO4 or a mixture of both, were evaluated. As a ...
1of50 ©BoardworksLtd2007 1.Chemicalbond (1)DefinitionItisaninteractionbetweenatomsorionsthatresultsinareductioninthepotentialenergyofthesystemwhichhencebecomesmorestable.2of50 ©BoardworksLtd2007 Whydoatomsformbonds?Theatomsofnoblegaseshavecompletelyfulloutershellsandsoarestable.Thismakesthenoblegasesveryun...
A glazing paste comprising glass frit, a metal oxide powder selected from the group consisting of aluminum oxide (Al 2 O 3 ), magnesium oxide (MgO), calcium oxide (CaO), and zinc oxide, (ZnO), and an organic vehicle. KR Bube - US 被引量: 25发表: 1981年 Shear bond strength of me...