NiO/Al2O3 self-lubricating wear resistant ceramic matrix composite coatings with a microstructure consisting of Al2O3 primary dendrites and the inter-dendritic film-like NiO solid lubricant phase were fabricated on Al2O3 ceramic substrate by laser cladding with Al2O3-NiO ceramic powder blends.
METHODS:3 levels from each of the amount of four factors-excipient calcium carbonate,tween-80,starch and emollient(magnesium stearate:french chalk) were subjected to the orthogonal design with the parameter of dissolution(Td) of the harmine in tablet as an index.
The influences of five kinds of surfactants,such as T702,SPAN80,triethanolamine oleate,Tween80,NP-10,and their blends on the properties of lubricant used in hot rolling aluminum were investigated by analyzing the stability,particle size and surface tension of the oil-in-water(O/W) emulsions.
Numerical results of the lubrication show that the differential viscosity is the principal non-Newtonian property affecting the lubrication, it is determined by the material parameters of the lubricant and is affected by the shearing rate.
According theoretical analysis, both the methods will apparently change the electro-viscosity of the lubricant film so as to change the lubrication performances.
Liquid metal, which is a conductor of electric current, may be used as a lubricant at high temperatures.
Different forms of the Reynolds differential equations for the three-dimensional flow of a gas lubricant
Essentially, instability is observed when the lower layer acts as a lubricant.
Moisturizers are known to have occlusive, emollient and humectant properties, all of which help to alleviate the symptoms of skin xerosis.
This decrease in filaggrin production in atopic skin may be one of the reasons why atopic skin can easily become dry, because filaggrin is thought to be the precursor protein of the emollient factors in the stratum corneum.
Aqueous and nonaqueous microemulsion systems with a palm oil-base emollient
Microemulsions with a palm oil-based emollient, i.e., medium-chain triglyceride (MCT), and water or glycerol, stabilized by two oppositely charged ionic surfactants and a medium-chain alcohol, were investigated.
The maximum solubilization of the MCT emollient was higher in cetyltrimethyl ammonium bromide, i.e., the positively charged surfactant that contained a nitrogen atom, than the negatively charged surfactant sodium dodecyl sulfate.