Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Texture factors

There are other factors affecting the intensity of the peaks on a x-ray diffraction profile of a powdered sample. We have analyzed the structure factor, the polarization factor, and the broadening of the lines because of the dimensions of the crystallites. Now, we will analyze the multiplicity factor, the Lorentz factor, the absorption factor, the temperature factor, and the texture factor [21,22,24,26],... [Pg.36]

The population parameter of hydrogen has been refined to a value of 62(5) % and, therefore, the chemical composition of the material is NiMnOsHs, or NiMn03.5(0H)5, where 5 = 0.62(5). Hence, a fraction of the Mn atoms should be in the 4+ oxidation states. The latter was confirmed by the magnetic susceptibility measurements. The preferred orientation parameters, refined for both preferred orientation axes, i.e. [010] and [100], are 0.74 and 1.40, respectively, resulting in the texture factors ranging between 0.52 and 2.10, which corresponds to the preferred orientation magnitude of about 4. [Pg.653]

Ki = relaxation of normal and shear stress K2 = texture factor (1 for fee metals) tc = shear stress for dislocation movement p = friction angle at abrasive-material interface... [Pg.367]

The chemical and physical properties of limestone vary tremendously, owing to the nature and quantity of impurities present and the texture, ie, crystallinity and density. These same factors also exert a marked effect on the properties of the limes derived from the diverse stone types. In addition, calcination and hydration practices can profoundly influence the properties of lime. [Pg.166]

The corrosion resistance of aluminium coatings is generally related to that of solid aluminium of similar thickness. Additional factors arise with sprayed coatings associated with texture, and with aluminised and other coatings when diffusion from the substrate can occur. [Pg.470]

To be effective, this method must be carried out on samples which have been blanched, and upon peas from which the skins have been removed. The heat applied in blanching drives off gases entrapped in the tissues, and removal of the skins is required to remove air that may be entrapped under them, although it materially slows up the operation and makes it very tedious. In order that there may be consistency in grading, the test must be conducted under closely standardized conditions of temperature and solution concentration. This becomes of considerable importance in borderline cases, and failure to take it into consideration no doubt accounts for some of the inconsistency in results experienced by the industry. The test is not a true measure of tenderness, in that it accounts for variation in skin texture only in so far as maturity affects skin texture. Skin texture is affected by factors other than maturity (4). Other methods for the estimation of maturity based upon density or specific gravity have been suggested by Jodidi (16) and by Lee (22). [Pg.30]

Alcohol sulfates are excellent foaming surfactants. According to the Kitchener and Cooper classification [148], alcohol sulfates form metastable foams. However, quantitative values cannot easily be compared because foam largely depends not only on the instrument used to produce and evaluate foam but also on the concentration of surfactant, impurities, temperature, and many other factors. In addition, a complete characterization of the foam capacity should take into account the initial amount of foam, its stability, and its texture. [Pg.265]

There was a discrepancy between water salinity limits for the three locations, which may be attributed to factors related to difference in soil texture and stmcture. This affects soil infiltration capacity and water retention. These soil hydrologic characteristics influence salt development in the soil profile, which affects plant... [Pg.168]

The structure of metallic deposits is determined primarily by the size, shape (faceting), type of arrangement, and mutual orientation of the crystallites. Two factors may influence the orientation and spatial alignment of the microcrystals in electrocrystallization the field direction (or direction of the electric current) and the nature of the substrate. The deposits are said to have texture when the crystallites are highly oriented in certain directions. Epitaxy implies that the lattice is altered under the influence of the substrate. [Pg.313]

Different ways of the structural classification of deposits exist. In one system, the following structures are distinguished arbitrarily (1) fine-crystalline deposits lacking orientation, (2) coarse-crystalline deposits poorly oriented, (3) compact textured deposits oriented in field direction (prismatic deposits), and (4) isolated crystals with a predominant orientation in the field direction (friable deposits, dendrites). The structure of metal deposits depends on a large number of factors solution composition, the impurities present in the solntion, the current density, surface pretreatment, and so on. [Pg.313]

The choice of the carrier depends on several factors. The texture (size and shape of the pores, the way the pores are connected, etc.) of the support determines, to a large extent,... [Pg.71]

P. F. White, Soil and plant factors relating to the poor growth of Lupinus species on fine-textured alkaline soils. Aust. J. Agric. Res. 4l il (1990). [Pg.38]


See other pages where Texture factors is mentioned: [Pg.484]    [Pg.1067]    [Pg.755]    [Pg.78]    [Pg.484]    [Pg.1067]    [Pg.755]    [Pg.78]    [Pg.845]    [Pg.2414]    [Pg.206]    [Pg.117]    [Pg.461]    [Pg.451]    [Pg.48]    [Pg.48]    [Pg.335]    [Pg.155]    [Pg.362]    [Pg.227]    [Pg.458]    [Pg.1826]    [Pg.208]    [Pg.490]    [Pg.471]    [Pg.190]    [Pg.78]    [Pg.2]    [Pg.127]    [Pg.976]    [Pg.24]    [Pg.47]    [Pg.171]    [Pg.949]    [Pg.66]    [Pg.45]    [Pg.86]    [Pg.83]    [Pg.120]    [Pg.848]    [Pg.271]    [Pg.313]   
See also in sourсe #XX -- [ Pg.14 ]




SEARCH



© 2024 chempedia.info