Electrophoretic Forming of Functionally-Graded Barium/Strontium Titanate Ceramics

Sarkar, Partho; Sakaguchi, Sumie; Yonehara, Eiko; Hamagami, Jun‐ichi; Yamashita, Kimihiro; Umegaki, Takao

doi:10.1016/b978-044482548-3/50037-8

Cited by 3 publications

(3 citation statements)

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“…Bi ϭ hr 2 c (14) T represents the nondimensional transient temperature distributions. T 1 is the initial temperature distribution (which was analyzed previously), the Fourier number (nondimensional time), t the actual time, c the thermal diffusivity of the ceramic, h the heat-transfer coefficient on the ceramic surface, and T s the temperature on the ceramic surface.…”

Section: (1) Temperature Distributionsmentioning

confidence: 99%

“…In regard to the material fabrication processes, many techniques have been proposed, such as powder metallurgy, 12 a directed metal oxidation process, 13 an electrophoretic deposition process, 14 and centrifugal techniques. 15,16 Chemical vapor deposition (CVD), physical vapor deposition (PVD), and spray forming are also used for FGM coatings.…”

Section: Introductionmentioning

confidence: 99%

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Temperature and Stress Distributions in a Hollow Cylinder of Functionally Graded Material: The Case of Temperature‐Independent Material Properties

Araki

Ramakrishnan

2001

Journal of the American Ceramic Society

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We have presented a numerical technique for analyzing onedimensional transient temperature distributions in a circular hollow cylinder that was composed of functionally graded ceramic-metal-based materials, without considering the temperature-dependent material properties. The functionally graded material (FGM) cylinder was assumed to be initially in a steady state of gradient temperature; the ceramic inner surface was exposed to high temperature, and the metallic outer surface, which was associated with its in-service performance, was exposed to low temperature. Then, the FGM cylinder was cooled rapidly on the ceramic surface of the cylinder, using a cold medium. The transient temperature and related thermal stresses in the FGM cylinder were analyzed numerically for a model of the mullite-molybdenum FGM system. The technique for analyzing the temperature distribution is quite simple and widely applicable for various boundary conditions of FGMs, in comparison with methods that have been proposed recently by other researchers.

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Section: (1) Temperature Distributionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature and Stress Distributions in a Hollow Cylinder of Functionally Graded Material: The Case of Temperature‐Independent Material Properties

Araki

Ramakrishnan

2001

Journal of the American Ceramic Society

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“…In the simplest case an external mixing system supplies suspensions with the variable concentrations of the components or the second component is added with time in calculated proportions [64][65][66][67]. The feasibility to produce a graded green body from homogeneous suspensions using the difference in the electrophoretic mobility of different powders was investigated in the course of a priority program project [68].…”

Section: Electrophoretic Depositionmentioning

confidence: 99%