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Alloy 3-Alumina

Centrifugal Shot Casting Atomization (CSC) 150-1000 Standard deviation 1.3-1.4 Fe, Co, Ni, Ti alloys, Alumina, Uranium monocarbide 102-105 Narrow size distribution Coarse particles, Low EE... [Pg.71]

Bioinert materials are materials that display minimal, if any, interaction with surrounding tissues examples of these are titanium and its alloys, alumina, partially stabilised zirconia, carbon and possibly ultrahigh molecular weight polyethylene (UHMWPE). In the case of bioinert materials bone remodelling occurs by a shape-mediated contact osteogenesis. [Pg.43]

Aluminides based on the intermetallic phases Ni3Al and Fe3Al are considered both as structural materials and as coatings for high temperature applications [1-6]. Their excellent corrosion resistance is due to their forming a dense, protective alumina scale. Alumina, especially ot-Al203, shows low rate constants even at temperatures above 1000°C [7]. Unlike chromia, which is formed on conventional stainless steels and nickel base alloys, alumina does not evaporate above 1000°C [8] and it is even stable in oxygen deficient atmospheres. [Pg.203]

Kim, S.W., Khalil, K.A.R., 2006. High-frequency induction heat sintering of mechanically alloyed alumina-yttria-stabilized zirconia nano-bioceramics. J. Am. Ceram. Soc. 89, 1280-1285. [Pg.80]

By adding an element into the liquid metal, it is possible to decrease both (Ts and a. The adsorption of the element at the solid-liquid interface generally improves both the adhesion and the wetting. On the contrary, its adsorption at the free liquid surface always destroys the adhesion. It improves the wetting only for 0 angles lower than 90°. These features have been checked on Al-Sn alloy-alumina interfaces (Eustathopoulos and Drevet, 1994). [Pg.142]

ALUMDIUMCOMPOUNDS - ALUMINIUMOXIDE(ALUMINA) - CALCINED, TABULAR, AND ALUMINATE CETffiNTS] (Vol 2) -antimony in [ANTIMONY AND ANTIMONY ALLOYS] (Vol 3)... [Pg.537]

The oxidation of most modem alloys is dependent on the formation of a compact protective film of a slow growing chemically stable oxide such as chromium (ITT) oxide [1308-38-9], alumina [1344-28-1], AI2O2, or siUca [7631-86-9], Si02. These oxides grow much more slowly than do the oxides... [Pg.115]

Examples of similar processes are the decomposition of precipitated aluminum trHiydroxide to alumina, which is the feed for the electrolytic production of aluminum metal, and the drying of wet sulfide concentrates in preparation for flash roasting (see Aluminumand aluminum alloys). [Pg.164]

A.lkaline Solutions. The most important example of alkaline leach is the digestion of hydrated alumina from bauxite by a sodium hydroxide solution at 160-170°C, ie, the Bayer process (see Aluminumand aluminum alloys). [Pg.170]

Fig. 11. Modulus inciease as a function of fibei volume fraction alumina fiber-reinforced aluminum—lithium alloy matrix for (a) E (elastic modulus),... Fig. 11. Modulus inciease as a function of fibei volume fraction alumina fiber-reinforced aluminum—lithium alloy matrix for (a) E (elastic modulus),...
An important appHcation of MMCs in the automotive area is in diesel piston crowns (53). This appHcation involves incorporation of short fibers of alumina or alumina—siHca in the crown of the piston. The conventional diesel engine piston has an Al—Si casting alloy with a crown made of a nickel cast iron. The replacement of the nickel cast iron by aluminum matrix composite results in a lighter, more abrasion resistant, and cheaper product. Another appHcation in the automotive sector involves the use of carbon fiber and alumina particles in an aluminum matrix for use as cylinder liners in the Prelude model of Honda Motor Co. [Pg.204]

Calcium—Silicon. Calcium—silicon and calcium—barium—siUcon are made in the submerged-arc electric furnace by carbon reduction of lime, sihca rock, and barites. Commercial calcium—silicon contains 28—32% calcium, 60—65% siUcon, and 3% iron (max). Barium-bearing alloys contains 16—20% calcium, 9—12% barium, and 53—59% sihcon. Calcium can also be added as an ahoy containing 10—13% calcium, 14—18% barium, 19—21% aluminum, and 38—40% shicon These ahoys are used to deoxidize and degasify steel. They produce complex calcium shicate inclusions that are minimally harm fill to physical properties and prevent the formation of alumina-type inclusions, a principal source of fatigue failure in highly stressed ahoy steels. As a sulfide former, they promote random distribution of sulfides, thereby minimizing chain-type inclusions. In cast iron, they are used as an inoculant. [Pg.541]

Other coatings, such as TiAlN (96), TiCN, Zr02, and ZrN (97), and CrN (98) were developed for special appHcations. The last was developed for higher speed machining of titanium alloys. Sometimes a coating is developed not for its wear-resistance but for its heat insulation. The case in point is alumina coating of cBN to reduce the heat conductivity at the surface so that the cBN performance can be enhanced (99). [Pg.211]


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See also in sourсe #XX -- [ Pg.388 ]




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Alumina Nanolayers on NiAl Alloys

Alumina high-temperature alloys

Alumina-forming alloys

Alumina-forming alloys iron-based

Alumina-forming alloys nickel-based

High alumina-forming alloys

High-temperature oxidation corrosion alumina-forming alloys

Oxidation-resistant high temperature alumina-forming alloys

Yttrium alumina-forming alloys

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