蚊帐
发表于 2025-3-25 06:15:23
Recrystallization and Sintering in Ceramicstion phenomena. It is important to remember that metallurgists use the term recrystallization in a much more restricted sense: the nucleation and subsequent growth of a new generation of strain-free grains into the deformed matrix of cold-worked material.
Inelasticity
发表于 2025-3-25 09:37:29
Material Transport Rate and Stress Distribution During Grain Boundary Diffusion Driven by Surface Terial removal or material deposition in the grain boundary are shown graphically for various ratios of curvatures at the left and the right hand side of the neck and for a constant curvature ratio for varying grain boundary length. Some conclusions are drawn for material transport and angle change between the particles during sintering.
intellect
发表于 2025-3-25 15:16:42
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PALSY
发表于 2025-3-25 16:36:03
The Development of Pore-Free Ceramicsgrain growth by the reduction of grain boundary mobility with additions of magnesia in alumina and thoria in yttria. Some discussion of how these additives operate is presented and a new mechanism is proposed.
FAWN
发表于 2025-3-25 20:20:38
Sintering Crystalline Solids. I. Intermediate and Final State Diffusion Modelshese models predict that the rate of density change is constant when the diffusion coefficient and grain size are constant. The need for simultaneous isothermal densification and grain growth data is indicated. The explicit change in densification rate with discontinuous grain growth is predicted in terms of pore spacing and grain size.
Endearing
发表于 2025-3-26 04:02:35
Ceramic Steel?ubic stabilised matrix enhances the strength of PSZ. Here we report that a dispersion of metastable tetragonal zirconia in cubic zirconia can also be achieved, and that this gives rise to another, more powerful, strengthening mechanism.
plasma
发表于 2025-3-26 05:46:26
Role of Grain Boundaries in Sinteringases. Impurity additions will increase the sintering rate if they increase diffusion rates, but they may also increase sintering rates by impeding grain-boundary movement. Some experimental evidence is presented to support these conclusions.
专横
发表于 2025-3-26 10:57:51
Solid-State Sintering: Critical Assessment of Theoretical Concepts and Experimental Methods experimental results is not a sufficient proof for the validity of a sintering equation. Finally, some future trends in the basic understanding of sintering and fields of practical and theoretical interest are discussed.
indicate
发表于 2025-3-26 15:20:05
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该得
发表于 2025-3-26 18:20:12
The Kinetics of Contact Formation During Sintering by Diffusion Mechanismsarticle size distribution, the degree of contact forming during pressing and structure defects are hardly kept constant to a high enough degree to allow a quantitative comparison between theory and experiments.