Aluminum composite

Fig. 12. Young s modulus increase in an aluminum composite with SiC reinforcement volume fraction for different forms of reinforcement A, continuous...

Electronic-Grade MMCs. Metal-matrix composites can be tailored to have optimal thermal and physical properties to meet requirements of electronic packaging systems, eg, cotes, substrates, carriers, and housings. A controUed thermal expansion space tmss, ie, one having a high precision dimensional tolerance in space environment, was developed from a carbon fiber (pitch-based)/Al composite. Continuous boron fiber-reinforced aluminum composites made by diffusion bonding have been used as heat sinks in chip carrier multilayer boards. 

Figure 3 Aluminum composition dependence of of Gai j,Alj s at 300 K (solid line).

Ting, J.M. and Lake, M.L., Vapor grown carbon fiber reinforced aluminum composites with very high thermal conductivity J. Mat. Res., 1995, 10(2), 247 250. 

Let s address the issue of nonlinear material behavior, i.e., nonlinear stress-strain behavior. Where does this nonlinear material behavior come from Generally, any of the matrix-dominated properties will exhibit some degree of material nonlinearity because a matrix material is generally a plastic material, such as a resin or even a metal in a metal-matrix composite. For example, in a boron-aluminum composite material, recognize that the aluminum matrix is a metal with an inherently nonlinear stress-strain curve. Thus, the matrix-dominated properties, 3 and Gj2i generally have some level of nonlinear stress-strain curve. 

Boron has high neutron absorption and the boron-aluminum composites are being investigated for nuclear applications. Single-ply boron-epoxy composites have microwave polarization properties with potential applications in antenna and radome designs. 01... 

Iwasaki H, Mabuchi M, Higashi K, Langdon TG (1996) The development of cavitation in superplastic aluminum composites reinforced with Si3N4. Mater Sci Eng A 208(1) 116-121... 

This lower order was due to the agglomeration of the aluminum composition that occurred In building 34-Y. 

G.E. Jabbour, S.E. Shaheen, M.M. Morrell, B. Kippelen, N.R. Armstrong, andN. Peyghambarian, Aluminum composite cathodes a new method for the fabrication of efficient and bright organic light-emitting devices, Opt. Photon. News, 10 (4), 24, 1999. 

Aluminum composites. See also Aluminum-filled composites maximum packing fraction of, 70 25-26 spatial charge carriers in, 70 22 weight gain during relative humidity aging, 70 24... 

Bimodal aluminum composites, shear viscosity of, 70 26, 27 Bimodal aluminum-filled composites, 70 25-28... 

Aluminum composites aim at combining high-strength aluminum alloys with alumina ceramic fibers and filaments to provide even higher-strength structural materials. 

The airplane wing-tip flares which were used for signaling during the first World War are good examples23 of aluminum compositions. They were loaded in cylindrical paper cases 4 inches in length and 1% inches in internal diameter. The white light composition consisted of 77 parts of barium nitrate, 13 of flake aluminum, and 5 of sulfur intimately mixed and secured by a binder of shellac, and burned in the cases mentioned, for 1... 

Since ADN melts at 92°C, it would be theoretically possible to produce an ADN/aluminum composite by using melt-casting techniques similar to TNT-based composites. However there is a safety problem with this process, since ADN starts to decompose when melted, in contrast to the much more stable TNT. 

Aluminum spraying is used to coat less corrosion-resistant alloys. In the case of some composites, corrosion is due to the galvanic action between the aluminum matrix and the reinforcing material. Aluminum thermal spraying has been successfully used for the protection of the discontinous silicon carbide/aluminum composites, and continuous graphite/aluminum. Other protection procedures include sulfuric acid anodizing and iron vapor deposition on aluminum.44... 

High-strength aluminum alloys are frequently deficient in resistance to corrosion. High-purity aluminum and certain aluminum alloys are considerably more resistant to corrosion but are deficient in strength. By applying surface layers of the corrosion-resistant metal to a core of the strong alloy a clad aluminum composite is achieved that has a corrosion unattainable by either constituent acting alone. 

T. G. Nieh, Creep Rupture of a Silicon Carbide Reinforced Aluminum Composite, Metallurgical Transactions A, 15A, 139-146 (1984). 

Use Electron and microwave tubes, optical elements in radiation detectors, substrate for thin-film components and integrated circuits, abrasive, record needles, precision instrument bearings, aluminum composites, micromortars for hand-pulverizing chemicals. 

Transportation Automobiles body (metallic and plastic materials), composites, fuel, lubricants, rubber, fabrics, brake fluids, antifreeze Aircraft aluminum, composites, plastic materials, fuels, lubricants, deicing fluids... 

R.J. Imprescia, L.S. Levinson, R.D. Reiswig, T.C. Wallace, J.M. Williams, Carbide Coated Fibers in Graphite-Aluminum Composites, Los Alamos Scientific Laboratory, LA-6181-PR, July, 1976. 

Aluminum-epoxy-aluminum composite Aluminum-epoxy-polyethylene-epoxy-aluminum composite O Aluminum-epoxy—cross-linked polyethylene—epoxy-aluminum composite... 

Desorption isotherms for the hydrides of LaNi eAlo,] and LaNij sAlo.s are presented and values for the enthalpy and entropy changes of the hydriding reactions are calculated from the vant Hoff plots of log P vs, i/T. A crystallographic model of LaNij Al is shown and consideration of the nearest neighbor atom distribution leads to a rationalization of the observed linear relationship between the enthalpy change, aH, and the aluminum composition. Brief discussions of methods to predict dissociation pressures or interstitial site occupation are included. The cubic and hexagonal ABs phases are compared and, finally, the application of these alloys in chemical heat pump systems is noted. 

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