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Sintering of alumina

Colomban, P, and Vendange, V., Sintering of alumina and mullite prepared by slow hydrolysis of alkoxides the role of the protonic species and of pore topology, J. Non-Crystl. Solids, 147, 245, 1992. [Pg.119]

Before considering these, however, It is useful to review the effect of the presence of foreign Ions and the ambient atmosphere on the sintering of alumina. [Pg.43]

Prior to the sintering and annealing operations in the fabrication of electrolyte tubing, the green-formed shapes are bisque-fired (<1200°C) to remove binders and lubricants During reactive liquid phase sintering of / "-alumina at 1575-1585° C, four processes normally occur in parallel " ... [Pg.360]

Lee, K.Y. Dearhouse, P.H. Case, E.D. Micro-wave sintering of alumina using four different single-cavity modes. J. Mater. Syn. Process 1999, 7 (3), 159-166. [Pg.1696]

The time and temperature required to form the desired degree of porosity in the dense solid depend mainly on the particle size of the alumina powder. The usual sintering sequence is imagined to be (1) neck formation between powder particles, (2) formation of open porosity with a continuous solid phase (intermediate stage), and (3) removal of closed pores imbedded in the dense solid. In the usual practical sintering of alumina, stage one is rapid, and the final density or porosity is determined mainly by stage three. [Pg.5]

O.-H. Kwon and G.L. Messing, Kinetic analysis of solution-precipitation during liquid-phase sintering of alumina, J. Am. Ceram. Soc. 73(2), 275-281 (1990). [Pg.109]

Incorporation of Ce02 or Ti02 reduces the thermal sintering of both Cu and Cu-Cr catalysts. The structural stabilization of the Cu sites is probably due to a strong copper-dopant interaction.(14). In addition the dopants especially Ce02 can impart stability against the sintering of alumina carrier. However it can be seen that the thermal deactivation is much less pronounced for catalysts modified with cerium oxide. [Pg.827]

The consequences can be a decrease in the activity, because sintering of alumina leads to sintering of precious metals and moreover, mechanical damage of the carrier. [Pg.288]

J. Bournonville and G. Martino, "Sintering of Alumina Supported Platinum", in Catalyst Deactivation, eds. Delmon Froment, Elsevier, Amsterdam, 1980, pp. 159-166. [Pg.177]

Zuo, R. and Rddel, J. (2004) Temperature dependence of constitutive behavior for solid-state sintering of alumina, Acta Mater. 52, 3059. Includes a discussion of hot-forging of alumina. [Pg.443]

Coble RL (1958) Initial sintering of alumina and hematite. J Am Ceram Soc 41 55-62... [Pg.391]

Fang Y, Cheng JP, Agrawal DK (2004) Effeet of powder reactivity on microwave sintering of alumina. Mater Lett 58 498-501... [Pg.518]

Bateman CA, Bennison SJ, Harmer MP (1989) Mechanism for the role of magensia in the sintering of alumina containing small amounts of a liquid-phase. J Am Ceram Soc 72 1241-1244... [Pg.575]

At the final stage of sintering of alumina powder compacts, densification and grain growth are reported to follow the equations... [Pg.166]

The contradicting data on the efficiency of additives and on the influence of their quantity on the phase transformation in alumina do not allow describing in detail the mechanism of the additive stabilizing effect. There is common point of view that as the sintering of alumina occurs thermodynamically, the most convenient method of stabilization is the kinetic inhibition of sintering by additives. The additives occupy the surface sites or bulk sites to prevent diffusion of atoms (surface diffusion and bulk diffusion) which brings to the a-phase transformation. [Pg.604]

G. Toda, T. Fujita and S. Ishuhara, Sintering and Wetting - Sintering of Alumina... [Pg.80]

Pana RP, Padhi BP, Bal AS, et al. Processing and characterization of MgAl204-calcium aluminate refractories by reaction sintering of alumina-dolomite. 13th Biennial Congress on Refractories, UNITECR. 2013 13 1153-8. [Pg.242]

Shaw NJ, Brook RJ (1986) Structure and grain coarsening during the sintering of alumina. J... [Pg.167]

Z. Shen, M. Johnsson, Z. Zhao, M. Hygren Spark Plasma Sintering of Alumina. J. Am. Ceram. Soc. 85, p.l921-1927, (2002)... [Pg.102]


See other pages where Sintering of alumina is mentioned: [Pg.507]    [Pg.374]    [Pg.456]    [Pg.130]    [Pg.43]    [Pg.73]    [Pg.138]    [Pg.1692]    [Pg.5]    [Pg.560]    [Pg.43]    [Pg.113]    [Pg.273]    [Pg.507]    [Pg.193]    [Pg.80]    [Pg.518]    [Pg.316]    [Pg.170]    [Pg.143]    [Pg.425]    [Pg.1304]    [Pg.455]    [Pg.151]    [Pg.174]   
See also in sourсe #XX -- [ Pg.273 , Pg.275 ]

See also in sourсe #XX -- [ Pg.334 , Pg.408 ]




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