Theory of Filtration of Ceramics: I, Slip Casting

Tiller, Frank M.; Tsai, Chun-Dar

doi:10.1111/j.1151-2916.1986.tb07388.x

Cited by 148 publications

(57 citation statements)

References 2 publications

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“…The main results concern the packing gradient, which increases across the cake layer from the bulk side towards the membrane side. Very similar results were developed with regard to ceramic processing applications, especially slip casting (Tiller and Tsai, 1986;Hampton et al, 1988). Specific cake resistance is also often related to pH, ionic strength, and particle size.…”

Section: Introductionsupporting

confidence: 63%

Coagulation of colloids retained by porous wall

Harmant

Aimar

1996

AIChE Journal

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Section: Introductionsupporting

confidence: 63%

Coagulation of colloids retained by porous wall

Harmant

Aimar

1996

AIChE Journal

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“…Several authors have modeled the layer buildup rate on a symmetric substrate (1,(12)(13)(14). This section presents the derivation of these models.…”

Section: Stage 1 Layer Buildup On a Symmetric Substratementioning

confidence: 99%

“…Slip casting of ceramics into molds with symmetric pore size has been studied intensively, resulting in several models (1)(2)(3)(4)(5). Research has been focused on the processing of thick compacts.…”

Section: Introductionmentioning

confidence: 99%

Layer Buildup on Two-Layered Porous Substrate by Dip-Coating: Modeling and Effect of Additives on Growth Rate

Levänen

Mäntylä

Mikkola

et al. 2000

Journal of Colloid and Interface Science

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“…de circona pura sin estabilizar, llamadas AMZ. Se fabricaron tres materiales laminados con la misma composición pero distinta relación de espesores de capa, mediante la técnica de procesamiento coloidal de colaje en molde poroso (18,19).…”

Section: Diseño Del Materials Laminadounclassified

Tensiones residuales en cerámicas multicapa de Al2O3-ZrO2: naturaleza, evaluación y consecuencias sobre la integridad estructural

Bermejo¹,

Sánchez-Herencia²,

Baudı́n³

et al. 2006

Bol. Soc. Esp. Ceram. Vidr.

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El presente trabajo comprende el diseño y procesamiento por colaje de suspensiones de sistemas multicapa basados en capas gruesas de alúmina y capas finas de alúmina-circona. Durante el enfriamiento desde la temperatura de sinterización se generan tensiones residuales en las capas debido a la expansión asociada a la transformación martensítica de la circona. En esta investigación se estudian los parámetros de procesamiento para la fabricación de estos sistemas laminados y se caracterizan microestructuralmente las capas que lo componen. Como resultado se obtienen multicapas cerámicas con diferente relación de espesores entre capas adyacentes utilizando como método de control las cinéticas de colaje de los correspondientes monolíticos. Adicionalmente, se determinan analíticamente las tensiones residuales generadas en los laminados por medio de las diferencias volumétricas determinadas en ensayos dilatométricos y del módulo elástico de cada capa. Se encuentra que en las capas delgadas se desarrollan elevadas tensiones de compresión mientras que en las gruesas se inducen tensiones residuales de tracción. El efecto de estas tensiones sobre la integridad mecánica del material se discute en términos de las observaciones de fenómenos de fisuración intrínseca: tanto de grietas de borde o "edge cracks" en la superficie libre de las capas delgadas como de fisuras túnel o "tunneling cracks" en las capas gruesas. Palabras clave: alúmina, circona, multicapa, colaje en molde, tensión residual. Residual stresses in Al 2 O 3 -ZrO 2 multilayered ceramics: nature, evaluation and influence on the structural integrityThis work studies the design and processing by slip casting of multilayered systems based on thick alumina and thin aluminazirconia layers. During cooling from the sintering temperature residual stresses may arise due to expansion associated to the martensitic transformation of the zirconia. In this investigation, the processing parameters involved in the fabrication of theses layered systems are studied and the respective layers microstructurally characterized. As a result, several multilayered ceramics in terms of thickness ratio between adjacent layers are obtained by means of the casting kinetics of the corresponding monoliths. Additionally, the residual stresses generated in the laminates are analytically determined through the difference in shrinkage assessed with dilatometric tests and the elastic modulus corresponding to each layer. It is found that in the thin layers elevated residual compressive stresses are generated whilst in the thick ones tensile residual stresses are induced. The effect of these stresses on the mechanical integrity of the material is discussed in terms of the observations of intrinsic cracking phenomena: both edge cracks at the free surface of the thin layers and tunneling cracks in the thick layers.Keywords: alumina, zirconia, multilayer, slip casting, residual stress. INTRODUccIÓNLa resistencia de materiales frágiles viene condicionada por la variedad de grietas y/o defectos que puedan ...

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Theory of Filtration of Ceramics: I, Slip Casting

Cited by 148 publications

References 2 publications

Coagulation of colloids retained by porous wall

Coagulation of colloids retained by porous wall

Layer Buildup on Two-Layered Porous Substrate by Dip-Coating: Modeling and Effect of Additives on Growth Rate

Tensiones residuales en cerámicas multicapa de Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub>: naturaleza, evaluación y consecuencias sobre la integridad estructural

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