{
    "title": "Deflecting Magnetic Shield",
    "inventor_name": "Gordon Wardle, William May",
    "publication_year": null,
    "device_name": "Deflecting Magnetic Field Shield",
    "goal": "Provide a lightweight, inexpensive, non-ferrous magnetic shield that deflects magnetic fields away from protected equipment, reducing magnetic interference.",
    "problem_addressed": "Magnetic interference from power lines and electronic equipment causing image distortion, data errors, operator fatigue, and the drawbacks of traditional heavy, ferrous shielding materials (steel, mu-metal, etc.).",
    "concept_summary": "A powdered composite shielding material composed of coal slag, silver powder, a calcium-magnesium-zinc powder mixture, and silica powder (optionally nano-silver). The powder can be applied to any substrate as a coating or spray-able layer. The non-ferrous, non-magnetic composition is intended to deflect magnetic fields rather than trap them, avoiding saturation and reducing weight and cost.",
    "detailed_description": null,
    "category": "Electromagnetism & Magnetism",
    "principles": [
        "Magnetic field deflection",
        "Non-ferrous composite shielding",
        "Powder-based coating application",
        "Use of nano-silver for enhanced conductivity and reflectivity"
    ],
    "scientific_domains": [
        "Physics",
        "Materials Science"
    ],
    "mechanisms_of_action": [
        "Deflection of magnetic field lines by non-magnetic composite layer",
        "Reflection of electromagnetic energy via silver particles",
        "Insulation provided by silica and coal slag matrix"
    ],
    "materials": [
        "Coal slag",
        "Silver powder",
        "Calcium powder",
        "Magnesium powder",
        "Zinc powder",
        "Silica powder",
        "Nano-silver"
    ],
    "energy_sources": [],
    "inputs": [
        "Magnetic field to be shielded",
        "Substrate (any material or shape)",
        "Powder components (coal slag, silver, Ca-Mg-Zn mixture, silica)"
    ],
    "outputs": [
        "Deflected magnetic field",
        "Shielded area with reduced magnetic interference"
    ],
    "claimed_performance": "The shield deflects magnetic fields of high-power magnets and prevents magnetic saturation of the shielding material.",
    "experimental_evidence": null,
    "replication_status": null,
    "keywords": [
        "magnetic shielding",
        "non-ferrous composite",
        "powder coating",
        "silver powder",
        "coal slag",
        "nano-silver",
        "magnetic field deflection"
    ],
    "related_technologies": [
        "Mu-metal shielding",
        "Paramagnetic shielding",
        "Nanocomposite materials",
        "Spray-on coating technologies"
    ],
    "controversy_level": "low",
    "confidence_score": 0.9,
    "practicability_score": 0.8,
    "fringe_score": 0.2,
    "evidence_strength": 0.2,
    "risk_score": 0.1,
    "trl_estimate": 5,
    "source_urls": [],
    "organizations": [
        "DEFILLO & ASSOCIATES, INC."
    ],
    "applications": [
        "Electronic equipment shielding",
        "Medical device shielding",
        "Industrial machinery protection",
        "Power line interference mitigation"
    ],
    "limitations": [
        "No quantitative performance data provided",
        "Exact chemical reactions during mixing are not understood",
        "Long-term durability and environmental stability not demonstrated"
    ],
    "open_questions": [
        "What are the precise mechanisms by which the composite deflects magnetic fields?",
        "How does the shield's effectiveness compare to conventional mu-metal or permalloy shields?",
        "Can the powder coating be scaled up for large-area industrial applications?"
    ],
    "red_flags": [
        "Inventors admit they do not understand the exact reactions occurring when the chemicals are mixed",
        "Claims are made without supporting experimental data"
    ],
    "evidence_quotes": [
        "The shielding material is in powder form and can be encapsulated into any form and shape desired.",
        "The magnetic shield of the present invention deflects the magnetic fields of high power magnets.",
        "The present invention contemplates using from about 4 to about 30 weight percent of a silver powder, preferably 15 weight percent.",
        "At the present time, the inventors do not understand the exact reactions that occur when the chemicals are mixed to form the shielding material of the present invention."
    ]
}