Deposition of binderless B4C coatings by detonation spraying

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-02-19 DOI:10.1016/j.matlet.2025.138264

Igor S. Batraev , Vladimir Yu. Ulianitsky , Denis K. Rybin , Dina V. Dudina , Alexandr A. Shtertser , Arina V. Ukhina

引用次数: 0

Abstract

At present, boron carbide, B₄C, coatings are in high demand as protective plasma-facing first-wall materials in thermonuclear reactors. In the present work, for the first time, binderless B₄C coatings were obtained by detonation spraying (DS). The coatings were deposited on a tungsten sublayer deposited on a steel substrate. DS was performed using an acetylene-oxygen explosive mixture of C₂H₂ + 1.1O₂ composition. This enabled efficient heating of the boron carbide particles during spraying. The X-ray phase analysis confirmed that the B₄C phase was the major phase of the coatings. The coatings had a porosity of 1.4 ± 0.2 %, a hardness of 13.9 ± 1.6 GPa, and a cohesion of 12.4 ± 0.6 MPa. Based on results of the present work, the DS technology can be recommended for depositing protective plasma-facing binderless B₄C coatings on the first wall of a thermonuclear reactor.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive