持続可能なパイロテクニクス:遅延組成物用B₄C/Bi₂O₃の燃焼挙動
Danillo F Vianna Cantini1, Vojtěch Pelikán1, Eva Schmidová2
1Institute of Energetic Materials, Faculty of Chemical Technology, University of Pardubice, Studentská 95, Pardubice 532 10, Czech Republic.
ACS omega
|February 2, 2026
まとめ
本研究では、持続可能なパイロテクニクス遅延組成物として、炭化ホウ素(B₄C)と酸化ビスマス(III)(Bi₂O₃)を調査する。高密度化は、空隙率を制限することにより燃焼速度を低下させ、よりグリーンな配合を最適化する。
科学分野:
- 材料科学
- 燃焼化学
- グリーンケミストリー
背景:
- 持続可能なパイロテクニック遅延組成物の開発は、環境および性能の向上のために重要である。
- 従来の配合は、環境負荷の少ない成分に依存することが多い。
- 炭化ホウ素(B₄C)および酸化ビスマス(III)(Bi₂O₃)は、有望なよりグリーンな代替品を提供する。
研究 の 目的:
- B₄C/Bi₂O₃パイロテクニック組成物の燃焼挙動を探求すること。
- 圧縮圧力および粒子/粒子のサイズが燃焼速度に及ぼす影響を理解すること。
- これらのよりグリーンな配合の多段階反応経路を解明すること。
主な方法:
- 配合設計のための熱力学計算。
- 様々な圧力(64~385 MPa)での組成物の造粒およびプレス。
- 燃焼速度分析、固体残渣検査、および燃焼ガス分析。
主要な成果:
- 圧縮圧力の増加は、空隙率の低下により燃焼速度を段階的に低下させた。
- 粒子および粒子のサイズは、燃焼挙動および燃焼プロファイルに大きく影響した。
- 反応機構は、明確な固体-固体、固体-液体、および気体相を含む。
結論:
- B₄C/Bi₂O₃配合は、環境に優しいパイロテクニック材料としての実行可能性を示す。
- 圧縮圧力は、これらのよりグリーンな配合の燃焼速度を制御する上で重要なパラメータである。
- 多段階反応経路を理解することで、性能の最適化と環境負荷の低減が可能になる。
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