Synchrotron radiation studies of the kinetics of cBN crystallization in the NH4F–BN system

Literature Information

Publication Date 2002-02-06
DOI 10.1039/B107483K
Impact Factor 3.676
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Abstract

The kinetics of the spontaneous crystallization of cubic boron nitride from the melt of the NH4F–BN system at high pressures and temperatures have been studied in situ using X-ray diffraction with synchrotron radiation. The crystallization is limited by the volume diffusion of BN in the melt and its apparent activation energy is 207 ± 6 kJ mol−1. The kinetic data are best fitted by a model that assumes instantaneous nucleation in the initial stage of the crystallization, and nucleation at a constant rate in the subsequent stage.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

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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