Solid-State Sintering: Critical Assessment of Theoretical Concepts and Experimental Methods

Exner, Hans Eckart

doi:10.1007/978-94-009-0741-6_6

Cited by 7 publications

(2 citation statements)

References 17 publications

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“…These developments are now described in several textbooks and reviews. [1][2][3][4][5][6][7] In these advancements, particle models were devised based on identified mechanisms of atomic motion. These theories linked atomic fluxes associated with the sintering process to the thermodynamic parameters, the consolidation behaviour and grain growth, thus integrating the understanding at different scale levels.…”

Section: Sintering Theory and Constrained Densificationmentioning

confidence: 99%

Constrained sintering: A delicate balance of scales

Green

Guillon

Rödel

2008

Journal of the European Ceramic Society

188

100

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Section: Sintering Theory and Constrained Densificationmentioning

confidence: 99%

Constrained sintering: A delicate balance of scales

Green

Guillon

Rödel

2008

Journal of the European Ceramic Society

188

100

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“…The early theoretical models were mainly focused on individual mechanisms during different stages of sintering, including the initial bonding stage, intermediate shrinking stage and late sintering stage [5][6][7][8]. Later, more sophisticated models were developed, which used less simplifications and incorporated multiple physical mechanisms simultaneously [9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Modeling morphology evolution and densification during solid-state sintering via kinetic Monte Carlo simulation

Chen

Jiao³

2016

Modelling Simul. Mater. Sci. Eng.

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Microstructure control is an important subject in solid-state sintering and plays a crucial role in determining post-sintering material properties, such as strength, toughness and density, to name but a few. The preponderance of existing numerical sintering simulations model the morphology evolution and densification process driven by surface energy minimization by either dilating the particles to be sintered or using the vacancy annihilation model. Here, we develop a novel kinetic Monte Carlo model to model morphology evolution and densification during free sintering. Specifically, we derive analytically a heterogeneous densification rate of the sintering system by considering sintering stress induced mass transport. The densification of the system then is achieved by modeling the sintering stress induced mass transfer via applying effective particle displacement and grain boundary migration with an efficient two-step iterative interfacial energy minimization procedure. Coarsening is also considered in the later stages of the simulations. We show that our model can accurately capture the diffusion-induced evolution of particle morphology, including neck formation and growth, as well as realistically reproduce the overall densification of the sintered material.The computationally obtained dynamic density evolution curves for both two-particle sintering and many-particle material sintering are found in excellent agreement with the corresponding experimental master sintering curves. Our model can be utilized to control a variety of structural and physical properties of the sintered materials, such as the pore size and final material density.

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Mechanism of Anisotropic Dimensional Changes During Sintering of Metal Powder Compact

Kuroki

Hiraishi

1989

Science of Sintering

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Solid-State Sintering: Critical Assessment of Theoretical Concepts and Experimental Methods

Cited by 7 publications

References 17 publications

Constrained sintering: A delicate balance of scales

Constrained sintering: A delicate balance of scales

Modeling morphology evolution and densification during solid-state sintering via kinetic Monte Carlo simulation

Mechanism of Anisotropic Dimensional Changes During Sintering of Metal Powder Compact

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