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ugg milano Multiphase system in the carbonaceous p |
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Multiphase system in the carbonaceous pore volume of the expansion
And steam activation. Statistics ball diameter with a vernier caliper to measure. Third,[link widoczny dla zalogowanych], the results and discussion with the rotary kiln temperature,[link widoczny dla zalogowanych], the small piece of a slight decrease in diameter. And fired at 800 ℃: 8-10 Lat amount of water vapor when the sample size of the resulting activation is always the same,[link widoczny dla zalogowanych], but about the contractionary effect of 5-ethyl is a surprising amount of the sample activated to burn twice as high after loss no longer contract. Activation at 900 ℃ have this situation,[link widoczny dla zalogowanych], but the contraction of 10-ethyl. At least two effects only due to shrinkage effects of the cable,[link widoczny dla zalogowanych], the temperature and pressure (inert gas or water vapor). Residence time of heat treatment process or the size of the loss on ignition with little or no effect Figure 1 shows the different amounts of carbon black added to the oxidation of bituminous coal and coal tar pitch mixtures, the porosity of the resulting carbon impact. LOI 60% in a 4D. First to see the amount of pore volume with the increase of carbon black by adding a linear decrease (diameter <0.29nm). These results are applicable to both firing timing is wrong. Obviously, the pore volume is only off in the semi-coke particles formed, because the two extrapolated lines are representative of oxidation of bituminous coal with carbon black have all been replaced as the starting point of intersection Further increasing the amount of carbon black holes by adding the volume of linear increase faster. Carbon black used in the average size is about crushing the coal than 1,000 times the size of a small pore size that we think that the increase is due to the increase of the interface, such as coke and semi coke of a coke steam activation of a carbon black in water Figure l is not carbon black spider eight Yun pore structure of the first phase of new carbon materials as appropriate pitch-based carbon fiber compressive strength G. J. Hayes et al (U.S.)-dimensional microstructure on the fracture mechanism, it has more of a preamble high strength and elongation. Can be deduced: the different micro-structures can lead to the different nature of carbon fiber compression. Structural elements in high-performance carbon fibers in the application by Dobb, lohnson and Park [) to the PAN fiber-based and compressed nature of the restrictions. Since pitch-based carbon fiber pitch-based carbon fiber properties and fracture mechanism of compression with the compression strength is lower than their PAN based carbon fiber, but also limits its micro-structural differences in the link. According to reports, PAN-based application of these advanced areas. And low-modulus pitch-based fibers (Amoco a 25) than high modulus fibers many scholars to study the microstructure and properties of the amount of pitch-based fibers have higher compressive strength. The relationship between high modulus asked. Endo () describes the pitch-based CarboniC low compressive strength of pitch-based fibers with its layered structure and Thornel fiber differences. Carbonic fibers off. The layered structure of PAN-based fibers with random layered structure phase micro-structure fold, in the fiber axis has a good ratio between the base surface is easier to cut. Thereby reducing the compressive strength preferred orientation. But they are still even in high temperature treatment also degrees. There turbostratic crystal structure. Thornel fiber, with smooth working of the emblem of the structure with different levels of asphalt-based micro-structure, has a higher than carbonic fiber compressive strength of carbon fiber pretty: micro-layered structure with a smooth axial preferred orientation, and its crystal structure is more similar to the stone Amoco fiber, micro-structure of the radiation with fold ink. Dupont fiber and has a short-type (1ine-origin) of these differences in the microstructure of various types of fiber have the same micro-structure of the CI ~ m $ on the University's non-circular fiber (see Figure-dimensional mechanical properties and fracture mechanism linked. Thornel1 .) Figure 2 is Anloco Duponl pitch-based carbon fiber and fiber because of its high degree of orientation, which has more than Carbonic tensile strength and modulus of the function. It shows a higher modulus of the micro fiber. However, i, Carbonic-fiber structure of the right foot hill of the carbon fibers with different tensile strength. The study llm!) L: mll ■ Chau ■ II / ll ■ Chau ■ I ~ mll}} ■ ■ ■ liniiml ■ JJ ■ IIIUiimiiiimllllmll ~ mllJmllJJ ■ ■ jJ ■ in the pore volume influenced by the ignition loss Tuo. Fourth, the study concluded that at least three kinds of activated carbon: semi-coke, petroleum coke and carbon black. In the first minutes of activation, carbon, where a strong contraction of the small ball. We that the contraction should be due to different types of carbon formed during carbonization of the question, the internal forces will decrease. in the hole with the body I wish to join the increase of carbon black, this small addition of carbon particles in water vapor at least lead to activation, with some significant increase in carbon material interface. in the development of pore volume is the interface between the key chain that rupture cause. Xue Han and later translated Mian Yong P78-77 School
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Wed 15:14, 02 Mar 2011 |
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