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<p>The paper deals with calcium nitride obtained by combustion synthesis of calcium metal pellets in nitrogen at a&#xa0;pressure of 3&#xa0;to 7 MPa. The nitriding degree for calcium is about 99%. The obtained product composition is investigated by chemical and&#xa0;X-ray diffraction analyses. It is found that α‑ and β‑Ca<sub>3</sub>N<sub>2</sub> phases are the primary in the product. Impurity phases include the Ca<sub>2</sub>N phase, calcium nitrate and nitrite, and others.</p>

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Self-propagating high-temperature synthesis of Ca3N2 with improved nitriding degree and product composition

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • A. N. Avramchik,
  • O. A. Shkoda

摘要

The paper deals with calcium nitride obtained by combustion synthesis of calcium metal pellets in nitrogen at a pressure of 3 to 7 MPa. The nitriding degree for calcium is about 99%. The obtained product composition is investigated by chemical and X-ray diffraction analyses. It is found that α‑ and β‑Ca3N2 phases are the primary in the product. Impurity phases include the Ca2N phase, calcium nitrate and nitrite, and others.