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arXiv · 1511.08554

Formation of non-cubic nanoparticles from cubic MgO in intensified self-burning of magnesium

Sukbyung Chae·Peter V. Pikhitsa·Seungha Shin·Chang Hyuk Kim·Sekwon Jung·Mansoo Choi
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Abstract

When Mg metal burns in air the resulting rock-salt MgO smoke consists of perfect [100] cubes of about 100 nm. On contrast, we found that intensification of self-burning of Mg micropowder either by injecting it into oxy-hydrogen diffusion flame or under an infrared laser beam switches the growth mechanism producing mostly single-crystalline spheres and terraced nanoparticles. MgO molecule condensation onto primary spherical nanoparticles can account for generation of terraced nanoparticles with regular steps proportional to the nanoparticle size.

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Sukbyung Chae, Peter V. Pikhitsa, Seungha Shin, Chang Hyuk Kim, Sekwon Jung, Mansoo Choi. 2015-11-27. Formation of non-cubic nanoparticles from cubic MgO in intensified self-burning of magnesium. https://arxiv.org/abs/1511.08554

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