{
  "abstract": "Non-metallic polytetrafluoroethylene (PTFE)-based reactive materials (RMs) exhibit relatively high energy density; however, the low shock sensitivity hinders their widespread application in space debris protection. To develop lightweight, high-energy PTFE-based RMs with superior shock-induced energy-release performance, Al/Si/PTFE ternary RMs were produced by a cold pressing and sintering process with additions of Aluminum (Al) and Silicon (Si) powders. The effect of Al and Si content on the impact ignition and energy release of Al/Si/PTFE was investigated by split Hopkinson pressure bar (SHPB) experiments. High-speed photography shows that the addition of Al powder can effectively lower the reaction threshold of Si/PTFE and enhance its energy release efficiency. The critical reaction temperature threshold of Al1.2Si1PTFE is lower than that of other Al/Si/PTFE RMs, and its primary and secondary ignition intensities are the highest. The micro-ignition mechanism of the Al/Si/PTFE RMs was revealed by molecular dynamics (MD) simulations and differential scanning calorimetry (DSC) experiments. The synergistic effect of Al and Si particles in Al1.2Si1PTFE under a shock wave produces a more pronounced local temperature rise and more hotspots, ultimately releasing the greatest extent of reaction.",
  "abstract_shown": true,
  "affiliations": [
    "State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China",
    "College of Aerospace Engineering, Chongqing University, Chongqing 400044, China"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Liangfei Gong",
      "orcid": "0000-0002-5116-6161"
    },
    {
      "affs": [
        0
      ],
      "name": "Lieke Ma"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiaomalong Pu"
    },
    {
      "affs": [
        0
      ],
      "name": "Bo Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Yulian Liu"
    },
    {
      "affs": [
        0
      ],
      "name": "Ao Mei"
    },
    {
      "affs": [
        1
      ],
      "name": "Jie Wang",
      "orcid": "0000-0001-9039-3247"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9jydwt54g2b59.bib",
  "cited_by": 0,
  "doi": "10.3390/polym18192432",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667215/?tool=EBI",
  "id": "9jydwt54g2b59",
  "issns": [
    "2073-4360"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13667215",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2211|Energetic Materials and Combustion"
    ]
  ],
  "openalex": "W7220741877",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667215/pdf/?tool=EBI",
  "pmcid": "PMC13667215",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/9jydwt54g2b59.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:35Z",
      "native_id": "PMC:PMC13667215",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13667215"
    },
    {
      "first_seen": "2026-10-30T12:18:44Z",
      "native_id": "10.3390/polym18192432",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4360/18/19/2432"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2073-4360",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Atomic-Scale Reaction Mechanism of Impact Ignition in Al/Si/PTFE Reactive Materials",
  "title_text": "Atomic-Scale Reaction Mechanism of Impact Ignition in Al/Si/PTFE Reactive Materials",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:44Z",
  "url": "https://research.draconitic.com/paper/9jydwt54g2b59",
  "venue": "Polymers",
  "versions": []
}