Description
This is the description of the Session.
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Jian Luo (Unversity of California San Diego)31/08/2026, 13:40Fundamental aspects of sintering2. Invited speaker (by invitation only)
In 2015, we first reported that flash sintering generally initiates as a thermal runaway [Acta Mater. 94:87 (2015)]. Subsequent work demonstrated that ultrahigh heating rates of 100K/s, rather than the electric field, are the key factor enabling ultrafast sintering, via comparing flash sintering with rapid thermal annealing without an electric field [Acta Mater. 125:465 (2017)]. Subsequently,...
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Douglas Gouvêa (Universidade de São Paulo)31/08/2026, 13:40Fundamental aspects of sintering2. Invited speaker (by invitation only)
The lecture emphasizes the importance of solid–solid interface energy, or grain boundaries, in the thermodynamics of interfaces during the sintering of ceramic materials. Three chemical potentials are identified: the difference in chemical potential between grain boundaries and surfaces emerges as a crucial factor for pore elimination. However, once this equilibrium is attained, a second...
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Klaus van Benthem (The University of Alabama, Department of Metallurgical and Materials Engineering, Alabama Materials Institute, Tuscaloosa, CA, United States)31/08/2026, 16:00Fundamental aspects of sintering2. Invited speaker (by invitation only)
Dopant adsorption at a grain boundary is described by the number of atoms per unit area of unit interface area in comparison to the adjacent bulk phase. The so-called excess quantity can be positive or negative dependent on whether there is an enrichment or depletion of dopant atoms at the grain boundary. In the first part of the talk suitable techniques to determine grain boundary excess...
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Prof. Andrey Ragulya (Frantsevych Institute for Problems in Materials Science NAS of Ukraine, and Private Institute International Research Center NANO)01/09/2026, 09:00Fundamental aspects of sintering2. Invited speaker (by invitation only)
The comparison of traditional high-temperature liquid phase sintering and advanced low-temperature cold sintering processes will be discussed in the frame of new materials science paradigm and non-equilibrium thermodynamics.
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At present, two big parts of materials science exist: hard-bonded materials (with bond’s energy higher than 1 eV) and soft-bonded materials (with bond’s energy less than... -
Sevag Momjian (The Pennsylvania State University)01/09/2026, 11:20Fundamental aspects of sintering3. Oral presentation
Materials perturbed to non-equilibrium conditions will spontaneously relax to their equilibrium state. The cold sintering of ceramics can be understood in this way. Throughout the cold sintering process (CSP), various diffusional and creep mechanisms transfer material from grain boundaries to porous regions to drive densification. Here, we will show that a relaxation model can be used to...
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K. (T.) Marquardt (Department of Materials, University of Oxford, Oxford, United Kingdom)02/09/2026, 10:50Fundamental aspects of sintering2. Invited speaker (by invitation only)
The evolution of grain boundary complexions (Cantwell et al., 2014) during sintering remains insufficiently understood, despite its critical role in controlling transport and functional properties of polycrystalline materials. Here, we combine electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM/PED) to establish a unified framework linking sintering conditions,...
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Shen Dillon (University of California Irvine)03/09/2026, 09:00Fundamental aspects of sintering2. Invited speaker (by invitation only)
In situ TEM based sintering experiments indicate that sintering kinetics are inherently non-steady-state due to the need to nucleate point defect sinks. In materials science, kinetic laws are typically derived from differential equations describing the relationship between instantaneous rate and driving force. These formulations are not adequate for problems that are inherently...
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Christoph PetersSintering of specific material systems4. Poster presentation
Content
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