{"closest_prior_art":[{"name":"IAEA cooling-circuit corrosion surveillance programme using bypass-mounted, material-representative coupons","overlap":"Uses coupons whose composition and metallurgical state resemble system materials, places them in a controlled-flow bypass, periodically replaces and retains them, and evaluates weight loss, thickness loss, deposits, maximum pit depth, trends, and exposure cadence to infer otherwise inaccessible internal corrosion and assess water treatment.","remaining_difference":"The proposal specializes this established method for compact mixed-metal cold-plate qualification and adds representative braze/coating/dissimilar-joint specimens, electrical-resistance and galvanic-current evidence, a downstream trap, material-specific decision bands, and explicit validation against cold-plate sections.","source_ids":["SRC1"]},{"name":"ASTM D2570-26 simulated-service corrosion testing of circulating coolants","overlap":"Evaluates circulating coolant against metal specimens and actual cooling-system components under controlled conditions; it is usable for qualification and expressly improves representativeness over static glassware testing.","remaining_difference":"It concerns automotive engine-coolant qualification rather than an exchangeable sidestream witness in an operating cold-plate qualification loop, and it does not establish the proposal's sequential warning bands or claimed lead time over existing cold-plate inspections.","source_ids":["SRC2"]},{"name":"OCP Cold Plate Development and Qualification guidance","overlap":"Directly addresses single-phase cold-plate qualification, mixed wetted materials, brazed and soldered joints, galvanic-corrosion planning, circulating-coolant testing with metal specimens under ASTM D2570, dissolved-metal monitoring, coolant degradation, pressure testing, and post-corrosion leak and thermal checks.","remaining_difference":"It does not prescribe a removable multi-material sidestream cartridge, repeated cartridge exchanges, a filtered trap, or prospectively validated cartridge-to-cold-plate action thresholds.","source_ids":["SRC3"]},{"name":"Eaton liquid-cooling-loop corrosion and compatibility practice","overlap":"Identifies mixed-material compatibility and galvanic and erosion-corrosion as liquid-cooling design concerns and links corrosion to leaks, blocked passages or filters, reduced flow, fouling, and increased thermal resistance.","remaining_difference":"It provides prevention and design guidance rather than an interval-exchanged physical witness with governed escalation and empirical recalibration against destructive cold-plate inspection.","source_ids":["SRC4"]}],"contrastive_claim_falsifier":"The claim is falsified if prespecified cartridge classifications fail to reproducibly precede or correlate with blinded cold-plate pit, wall-loss, braze, coating, or deposit measurements; provide no incremental detection or response lead time beyond coolant chemistry, pressure, thermal, and scheduled inspection data; or are dominated by coupon handling, manufacturing variation, or nonrepresentative cartridge temperature, flow, crevice, or galvanic conditions.","contrastive_claim_remaining":"Despite the established use of bypass corrosion coupons and circulating-coolant specimen tests, it remains testable whether a cold-plate-specific cartridge containing matched base metals, coatings, brazements, and dissimilar-metal junctions can deliver reproducible incremental warning and useful lead time for localized cold-plate attack, when evaluated with fixed bands and calibrated against blinded cold-plate examinations.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered the intervention directly, older coupon and surveillance terminology, standards and cold-plate qualification practices, and combinations involving circulating coolant, mixed metals, brazing, bypass racks, and corrosion signals. Four opened sources span IAEA, ASTM International, Open Compute Project, and Eaton and include official guidance, an official standard, industry guidance, and a first-party source.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"The proposed three-loop, low-pressure blinded comparison is bounded and decision-relevant: it uses controls and two intervals, compares fixed cartridge classifications with independent cold-plate cross-sections, and records false warnings, misses, lead time, leakage, pressure drop, and contamination. IAEA identifies temperature mismatch and time averaging as coupon limitations, while ASTM cautions that simulated-service testing cannot conclusively predict service life, making the planned direct correlation essential.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"},"distinct_testable_claim":{"rationale":"The broad coupon-monitoring mechanism is established, but the narrower comparative claim—incremental and earlier detection of localized damage in compact mixed-metal cold plates by a joint- and coating-representative cartridge—has measurable outcomes and explicit failure conditions.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"No obvious stop prevents a reviewed, externally isolated, low-pressure nonflight bench pilot. The proposal preserves chief-engineer authority, prohibits automatic design changes, specifies containment and rollback, and measures cartridge leakage, contamination, and hydraulic effects. Applicable sources likewise require safety practices and pressure/leak qualification; execution still requires the stated laboratory and pressure-boundary reviews.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"},"supported_problem":{"rationale":"Cold-plate and cooling-loop sources document mixed-wetted-material and braze compatibility concerns, galvanic corrosion, inhibitor depletion, pitting-related species, leaks, blocked passages, reduced flow, and added thermal resistance. IAEA guidance also treats removable coupons as a way to infer corrosion of inaccessible internal cooling-circuit surfaces. Evidence for the exact magnitude and timing of the qualification-stage monitoring gap remains indirect but is sufficient for the coarse screen.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"}},"prior_art_disposition":"ESTABLISHED_PRACTICE","problem_evidence":{"finding":"The underlying deterioration problem is visible: circulating coolant and mixed wetted materials can create galvanic or other corrosion, while resulting metal loss and deposits can cause leakage, obstruction, reduced flow, and thermal degradation. Material-representative bypass coupon surveillance is already recommended for assessing inaccessible cooling-circuit interiors. The sources do not directly establish how often compact cold plates remain pressure- and thermally compliant while actionable internal attack accumulates, so the proposal's precise monitoring-gap assertion is only partly supported.","source_ids":["SRC1","SRC3","SRC4"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P124","screen_survival":false,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["corrosion witness coupon flow through cartridge cooling loop galvanic current electrical resistance probe","material matched corrosion coupons brazed joint specimens cooling system qualification","site:opencompute.org cold plate development qualification corrosion coupon ASTM D2570 mixed metals"],"source_ids":["SRC1","SRC2","SRC3"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["liquid cooling cold plate corrosion aluminum copper brazed passages coolant corrosion monitoring coupons bypass loop","electronics liquid cooling coolant corrosion monitoring material compatibility cold plate"],"source_ids":["SRC3","SRC4"]},"products_practices_and_standards":{"no_result_note":null,"queries":["corrosion coupon rack bypass cooling water system ASTM G4 monitoring","site:astm.org D2570 standard simulated service corrosion testing engine coolants metal specimens circulating"],"source_ids":["SRC1","SRC2","SRC3"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["corrosion monitoring coupon bypass rack representative metallurgy cooling water official guide","corrosion surveillance programme witness specimens cooling circuit bypass"],"source_ids":["SRC1","SRC2"]}},"sources":[{"claims_supported":["Cooling-system corrosion surveillance commonly exposes standard coupons in a bypass for a specified period and then withdraws, cleans, and weighs them.","Representative coupons should resemble the composition and metallurgical state of system components.","Weight loss, deposits, and maximum pit depth can be measured; repeated replacement and historical data support trending and cadence adjustment.","Coupons can underrepresent actual component temperature and provide time-averaged rather than real-time corrosion information."],"publisher":"International Atomic Energy Agency","source_id":"SRC1","source_type":"OFFICIAL_GUIDANCE","title":"Good Practices for Water Quality Management in Research Reactors and Spent Fuel Storage Facilities","url":"https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1492_web.pdf"},{"claims_supported":["ASTM D2570-26 evaluates circulating coolant against metal specimens and cooling-system components under controlled conditions.","Controlled circulation and use of cooling-system components improve selective screening relative to static glassware testing.","The method can support qualification but cannot conclusively predict corrosion inhibition or service life without fuller-scale or field evidence.","Users remain responsible for appropriate safety, health, and environmental practices."],"publisher":"ASTM International","source_id":"SRC2","source_type":"OFFICIAL_STANDARD","title":"ASTM D2570-26: Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants","url":"https://store.astm.org/d2570-26.html"},{"claims_supported":["Cold-plate qualification must address compatibility among coolant and all wetted metals, polymers, elastomers, brazes, and solders.","Mixed wetted metals warrant an integrated corrosion qualification plan.","ASTM D2570 circulating-fluid tests with metal specimens, dissolved-metal analysis, pH, alkalinity, anions, and inhibitor tracking are recommended corrosion-assessment methods.","Cold-plate qualification also uses hydrostatic leakage and thermal-performance testing."],"publisher":"Open Compute Project Foundation","source_id":"SRC3","source_type":"OFFICIAL_GUIDANCE","title":"White Paper: Cold Plate Development and Qualification","url":"https://www.opencompute.org/documents/ocp-cold-plate-development-and-qualification-with-integrated-comments-pdf"},{"claims_supported":["Material and coolant compatibility, corrosion prevention, and joining details are central liquid-cooling-loop design concerns.","Dissimilar metals in conductive coolant can cause galvanic corrosion.","Corrosion can cause leaks, deposit material in passages or filters, reduce flow, and add thermal resistance through fouling.","Corrosion inhibitors can be undermined by incompatible materials elsewhere in the loop."],"publisher":"Eaton","source_id":"SRC4","source_type":"FIRST_PARTY_PRODUCT","title":"How to Design a Liquid Cooling System for High-Performance System Thermal Management","url":"https://www.eaton.com/us/en-us/products/thermal-management-solutions/liquid-cooling/high-performance-liquid-cooling-loop-design.html"}],"world_novelty_boundary":"This bounded public-web screen found established coupon-surveillance and circulating-coolant specimen practices that substantially encompass the proposal's central mechanism. It does not establish world novelty, patentability, market size, expert acceptance, realized value, or absence of unsearched implementations; the narrower cold-plate-specific cartridge configuration and comparative lead-time claim remain empirical questions, not novelty findings."}