Carbon Materials for Advanced Technologies Part 11 ppt

... lead to carbonaceous materials with higher capacity and better performance. The mechanism of lithium insertion in carbonaceous materials depends on the carbon type. The structure of carbons ... The values of La for ow samples are listed in Table 2. We did not use the structure refinement program for graphitic carbons for analysis of these very disordered materi...

Ngày tải lên: 10/08/2014, 11:21

... active carbon fibers Fig. 1. Venn diagram illustrating where active carbon fibers lie in the classification of carbon materials. 2.2 Active carbons Active carbons, AC, comprise carbons ... activated carbon fibres, Carbon, 1997, 35(2), 291 297. Cook, T. L., Komodromos, C., Quinn, D. F. and Ragan, S., Adsorbent storage for natural gas vehicles. In Carbon...

Ngày tải lên: 10/08/2014, 11:21

... pitches for binders and feedstocks for cokes [12]. Indeed, the majority of organic chermcals and carbonaceous materials prior to World War I1 were based on coal technologies. Unfortunately, ... fabricahon of coke, carbon, and artlficial graphite [ 11. These same feedstocks also have the potential for use in producing " ;advanced& quot; carbon products such as carbon...

Ngày tải lên: 10/08/2014, 11:21

... an atom of carbon from the surface, while 220 eV is required for an atom of tungsten. In the sub-keV energy range of plasma fuels, the high yield materials are therefore carbon and beryllium. ... imparted to the displaced atom follows the same form as that given in Eq. 6. For an atom striking a surface normally, the recoiling atom can not be sputtered from the surface....

Ngày tải lên: 10/08/2014, 11:21

... pyrolytic carbon, Chem. & Phys. Carbon, 1969, 5, 1 118 . Harmon, D.P. and Scott, C.B., Properties influencing high-temperature gas-cooled reactor coated fuel particle performance, ... reactive carbon deposit in the reactor core. 5 Other Applications of Carbon in Fission Reactors The overwhelming majority of carbon utilized in nuclear reactors is in the form of grap...

Ngày tải lên: 10/08/2014, 11:21

... composites applications 158 properties 146, 156 aluminum matrix 154 carbon matrix 147 polymer matrix 15 1 VGCF reinforced concrete 157 VOC removal 102 W Water- cooled reactors 454-456 ... energy see stored energy x X-10 reactor 438 X-ray diffi-ation 25,347 Y Young’s modulus 11, 84, 134, 144, 153, 157,406,436, 471, 4 c ISBN 0-00-042b03-2 9 Ill 790080 426838 I

Ngày tải lên: 10/08/2014, 11:21

... each carbon atom is bonded to three Carbon Materials for Advanced Technologies vi 4 High Performance Carbon Fibers 119 Dan D . Edie and John J . McHugh Introduction 119 Processing ... Processing Carbon Fibers from Polyacrylonitrile 119 High Performance Carbon Fibers from Novel Precursors 133 Carbon Fiber Property Comparison 133 Current Areas...

Ngày tải lên: 10/08/2014, 11:21

... to “single- wall carbon nanotubes” [195]. only two coaxial carbon cylinders [Fig. 14(b)], and another has an inner diam- eter of only 2.3 nm [Fig. 14(c)] 115 11. These carbon nanotubes ... [112 , 113 1. In the metallic regime (E, = 0), results for p(T) for a superconducting single crystal K3C60 sample (see Fig. 12) show a quadratic increase in p(T) above...

Ngày tải lên: 10/08/2014, 11:21

... commercial carbon fibers (adapted from W1). 6 Current Areas for High Performance Carbon Fiber Research Much of the current interest surrounding high performance carbon surrounds their potential for ... temperatures, Carbon, 1994,32(6), 113 3 113 6. Bhat, G. S., Cook, F. L., Abhiraman, A. S. and Peebles, L. H., New aspects in the stabilization of acrylic fibers for...

Ngày tải lên: 10/08/2014, 11:21

... (ORNL) for an aerospace application. Porous, carbon fiber -carbon binder composite materials are a class of carbon composites that are not widely recognized. Unlike dense, structural carbon- carbon ... density, carbon fiber -carbon binder composites are reviewed. 2 Manufacture 2. I Raw materials Low density, carbon fiber -carbon binder composites are fabricated fro...

Ngày tải lên: 10/08/2014, 11:21