SCS-6 fiber

There are four types of SCS fibers depending on the thickness of the final SiC coating designed for different metal matrices. They are the standard SCS, SCS-2, SCS-6 and SCS-8. Fig. 5.30 illustrates schematically the cross sections of two commercially produced SiC fibers, the standard SCS and SCS-6 fibers, according to DiCarlo (1988). Both types of fibers consist of a carbon core of 37 pm in diameter, a SiC sheath of varying thickness and a carbon-rich surface coating of 0-4 pm in... 

Blancett, A Aiken SC Fiber optic sensor for measurement of uranium in solution. DOE... 

Fibers (SC, OR, AP) and starch showed increased moisture uptake with increased relative humidity, especially above 50% (Table 3). SC fibers had the lowest moisture uptake in comparison to OR and AP fibers. Moisture uptake in PVA, PVA/Fiber and PVA/Fiber/Starch cast films also increased with increased relative humidity. For PVA/SC blends, lower moisture uptake was recorded compared with the corresponding OR and AP containing blends. Addition of starch in the formulation reduced moisture uptake in PVA/SC and PVA/OR blends. 

Nonnenmaoher M, Vaez-lravani M and Wiokramasinghe H K 1992 Attraotive mode foroe miorosoopy using feedbaok-oontrolled fiber interferometer Rev. Sc/. Instrum. 63 5373... 

Zong Q, inniss D, K]oiier K and Eiings V B 1993 Fractured poiymer/siiica fiber surface studied by tapping mode atomic force microscopy Surf. Sc/. Lett. 290 L688... 

J. W. S. Heade, P. Grosberg, andS. Backer, Structural Mechanics of Fibers, Yams, andFabrics,]ohxiYirA.ey Sc Sons, Inc., New York, 1969. 

Department of Chemical Engineering and Center for Advanced Engineering Fibers Clemson University Clemson, SC 29634-0909, USA... 

Dunham, M. G., Stabilization of polyacrylonitrile carbon fiber precursors. Ph.D. dissertation, Clemson University, Clemson, SC, 1990. 

NOTE Rats were administered five SC doses of MDA (10 mg/kg). MDMA (10 mg/kg). or METH (15 mg/kg), one dose every 6 hours, and killed 18 hours after the last dose. Results are presented as the means SEM, expressed as a percent of saline control. Control values were TH, 2645 163 nmol tyrosine oxidized/g fissue/hr and TPH, 45.0 3.5 nmol 14C02 fiberated/g tissue/hr... 

Hansen JC (2002) Conformational dynamics of the chromatin fiber in solution determinants, mechanisms, and functions. Annu Rev Biophys Biomol Struct 31 361-392 Hassan AH, Prochasson P, Neely KE, Galasinski SC, Chandy M, Carrozza MJ, Workman JL (2002) Function and selectivity of bromodomains in anchoring chromatin-modifying complexes to promoter nucleosomes. Cell 111 369-379... 

Properties SiC (SCS-6) monotilament SiC (Niealon) liber Boron (B W) fiber ... 

Additional surface modifications on vapor deposited SiC fibers, including WC. TaC, TiN, B4C, Al, Ni and Fe, have been applied with varying degree of success (Wawner and Nutt, 1980 DeBolt, 1982 Wawner, 1988). After exhaustive trial and error, TiB is selected as an additional coating material to further prevent the diffusion-induced reactions between the SCS-6 fibers and matrix materials, including Ti alloys and Ti Al intermetallic alloys (e.g. Ti Al, TiAl and TiAl ) (Donncllan and Frazier, 1991 James et al., 1991). When the coated fiber is subjected to tensile... 

Fig. 7.23. Thermal residual stress distributions in the (a) radial, (b) circumferential and (c) axial directions for a SCS-6 SiC fiber/TisAI + Nb matrix composite with and without Cu, Nb and Cu/Nb coatings. Total coating thickness t/a = 0,1. After Arnold and Wilt (1992).

Fibrous. Nemalite Nuttall (Am. J. Sc., 4, 18, 1821). In fibers or laths, usually elongated [1010] but sometimes [1120]. Some fibrous brucite is reported to be highly ferroan, but this may be owing to admixed magnetite. 

Pagel K, Wagner SC, Samedov K, Von Beripsch H, Boettcher C, Koksch B. Random coils, 8-sheet ribbons, and a-helical fibers one peptide adopting three different secondary structures at will. J Am Chem Soc 2006 128 2196-2197. 

Dyes, Dye Intermediates, and Naphthalene. Several thousand different synthetic dyes are known, having a total worldwide consumption of 298 million kg/yr (see Dyes and dye intermediates). Many dyes contain some form of sulfonate as —S03H, —S03Na, or — SC NH. Acid dyes, solvent dyes, basic dyes, disperse dyes, fiber-reactive dyes, and vat dyes can have one or more sulfonic acid groups incorporated into their molecular structure. The raw materials used for the manufacture of dyes are mainly aromatic hydrocarbons (67—74) and include benzene, toluene, naphthalene, anthracene, pyrene, phenol (qv), pyridine, and carbazole. Anthraquinone sulfonic acid is an important dye intermediate and is prepared by sulfonation of anthraquinone using sulfur trioxide and sulfuric acid. 

LAN Topologies. SYST1MAX SCS offers cabling architecture options for Fiber-to-the-Desktop installations tire traditional Hierarchical Star architecture and the new Single Point Administration architecture... 

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