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Black primary

Particle and aggregate size are the most important factors in carbon blacks. During the manufacture of carbon blacks, primary particles are obtained in the... [Pg.636]

The carbon atoms within each layer are arranged in almost the same manner as in graphite. The layers are nearly parallel to each other however, the relative position of these layers is random, so that there is no order as in the c direction of graphite ( turbostratic structure ) [4.3]. X-ray diffraction permits the determination of crystalline regions within the carbon black primary particle. These regions are... [Pg.144]

Porosity of carbon blacks can be detected by the de Boer t-plot method [4.30]. The total surface area and the geometrical surface area outside the pores can be determined separately from the adsorption isotherm. Special attention must be paid to the selection of a suitable master t curve. Due to the small diameters of most carbon black primary particles, methods for the determination of mesopores are of no importance. [Pg.163]

Characterization of carbon black primary particle size during the production process was realized at a furnace black production and a research plasma reactor (Dankers et al., 2003 Sommer et al., 2004, 2005). [Pg.237]

At first the spatially resolved investigation of carbon black primary particle sizes was carried out by realizing a LII setup in backscattering... [Pg.237]

Figure 20 Left High-resolution transmission electron micrograph image of a single PtMo (3 1) nanoparticle on the edge of a carbon black primary particle (111) and (100) fades are clearly resolved. Right Distribution Pt (light) and Mo (dark) atoms in an fee cubo-octahedral particle containing 1806 Pt atoms and 600 Mo atoms from classical Monte Carlo simulation at 550 K. Figure 20 Left High-resolution transmission electron micrograph image of a single PtMo (3 1) nanoparticle on the edge of a carbon black primary particle (111) and (100) fades are clearly resolved. Right Distribution Pt (light) and Mo (dark) atoms in an fee cubo-octahedral particle containing 1806 Pt atoms and 600 Mo atoms from classical Monte Carlo simulation at 550 K.
In synthetic materials, the surface organization also depends on the internal structure of particles. Carbon black is good example. Figure 5.11 shows the models of carbon black primary particles. The most recent model developed by Hess, Ban and Heidenreich is commonly accepted as being characteristic of carbon black particles. The particle is composed of small elements which are interconnected to form quasi-spherical parti-... [Pg.252]

Scientists are continuing to make a Figure 5.16. Structure of carbon black primary major effort to determine the Structure of... [Pg.259]

Fig. 5. Combining the principal component analysis (PCA) of chemical similarity with a Venn diagram analysis. This view enables the researcher to rapidly analyze which targets are the most similar ones in a safety profiling panel and how promiscuous they are black primary panel, grey secondary). Fig. 5. Combining the principal component analysis (PCA) of chemical similarity with a Venn diagram analysis. This view enables the researcher to rapidly analyze which targets are the most similar ones in a safety profiling panel and how promiscuous they are black primary panel, grey secondary).
At very high magnification, it is possible to observe directly the internal structure of carbon black primary particles. They are constituted by overlapping graphitic layers that locally present a quasi-crystalline turbostratic structure with an approximately 0.35 nm interlayer spacing, close to pure graphite (-0.332 nm). [Pg.387]

Find the heavily insulated black "primary" wires of the transformer (see pages 3 and 8). Make sure the insulation is stripped off the ends of the wires. Hold one power cord and one transformer primary wire, end-facing-end, and with the bare metal wires overlapping and next to each other. With your fingers, twist the bare wires around each other, but do not include any insulated parts. Put some cardboard or heavy paper on the table top, to protect it from damage. Arrange the twisted pair of wires so it is suspended an inch or so above the cardboard or paper, and it can later be touched from underneath by the hot soldering iron. [Pg.66]

Black - Primary circuit Red - Shutdown and decay heat cooling... [Pg.595]

Fig. 4 Cutaway model of a carbon-black primary particle with concentric layers. Parallel orientation of ordered layer groupings and diminishing graphitic order near particle center. (Reproduced with permission of Wissler (2006))... Fig. 4 Cutaway model of a carbon-black primary particle with concentric layers. Parallel orientation of ordered layer groupings and diminishing graphitic order near particle center. (Reproduced with permission of Wissler (2006))...

See other pages where Black primary is mentioned: [Pg.655]    [Pg.655]    [Pg.146]    [Pg.172]    [Pg.35]    [Pg.162]    [Pg.165]    [Pg.165]    [Pg.350]    [Pg.182]    [Pg.182]    [Pg.858]    [Pg.25]    [Pg.618]    [Pg.128]    [Pg.592]    [Pg.303]    [Pg.343]    [Pg.35]   
See also in sourсe #XX -- [ Pg.640 , Pg.641 ]




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