Silicon tracer diffusion in single crystalline 2/1-mullite measured by SIMS depth profiling

Literature Information

Publication Date 2003-03-11
DOI 10.1039/B300145H
Impact Factor 3.676
Authors

P. Fielitz, G. Borchardt, M. Schmücker, H. Schneider


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Abstract

We have measured the silicon tracer diffusivity (30Si) in single crystalline 2/1-mullite parallel to the crystallographic b- and c-axes, respectively. No significant difference between the b- and c-directions was found within the experimental error of 30%. An activation enthalpy of 612 kJ mol−1 and a pre-exponential factor of 7.3 × 10−2 m2 s−1 were determined from the silicon diffusivity data. In the investigated temperature range from 1311 °C to 1525 °C the silicon diffusivity is about two orders of magnitude lower than the oxygen diffusivity.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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