{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","cell_id":"disequilibrium_leverage_and_dissipation_management__chemistry_materials","arm":"BREADTH_PROBE_ONE_SHOT","candidate_id":"disequilibrium_leverage_and_dissipation_management__chemistry_materials__P1","proposal_index":1,"version":0,"title":"Exotherm-Routing Cure Tool for Thick Thermoset Composites","problem":"During cure of a thick thermoset composite, reaction heat accumulates in the core while surfaces and edges remain cooler. The resulting transient temperature and conversion gradient contains usable heat, but conventional processing primarily suppresses it or compensates with prolonged external heating. Uncontrolled core exotherm can also accelerate its own reaction, creating a hotspot before colder regions reach the required cure state.","actors":["Composite process engineer","Cure-tool designer","Production operator","Materials characterization technician","Environmental health and safety reviewer","Quality authority responsible for part release"],"observable_state":"Embedded thermocouples or fiber-optic sensors show a rising core-to-edge temperature difference during cure; dielectric or calorimetric measurements indicate higher conversion in the core than at the perimeter; the same run may show delayed edge cure, a core hotspot, volatile pressure, void formation, or residual-stress indicators.","consequence":"The part may require extended oven dwell or added external heat while still risking resin degradation, voids, uneven crosslink density, residual stress, dimensional error, or rejection.","affected_objective":"Achieve an acceptably uniform cure state through the part while limiting peak temperature, thermal damage, volatile accumulation, energy input, and time spent in the cure tool.","intervention":"Equip a bench-scale cure mold with switchable thermal bridges that couple the naturally developing core exotherm to colder edge zones only inside a predefined temperature-and-conversion window. Construct a Gradient and Flux Map from embedded sensors, route heat through removable high-conductivity tool inserts, record losses and sink loading in a Dissipation Ledger, and use a phase-change reservoir plus controllable cooling as Damping and Venting Controls. A Runaway Stop Rule disables the bridges and increases cooling if temperature, heating rate, volatile pressure, or spatial nonuniformity crosses a preset limit. After the gradient collapses, the tool decouples and completes a controlled re-equilibration dwell.","structural_mapping":[{"archetype_element":"Equilibrium Baseline","domain_realization":"The validated mold-temperature and cure-conversion trajectory under a conventional externally heated cycle, including acceptable spatial variation and material limits."},{"archetype_element":"Disequilibrium Source","domain_realization":"The transient core-to-edge temperature and reaction-rate gradient created by thermoset polymerization in a thick layup."},{"archetype_element":"Controlled Coupling Channel","domain_realization":"Switchable high-conductivity paths in the mold that carry heat from the exothermic core region toward colder perimeter regions without becoming permanent inclusions in the part."},{"archetype_element":"Operating Window","domain_realization":"Predeclared bounds on local temperature, heating rate, conversion, volatile pressure, coupling duration, and allowable sensor uncertainty."},{"archetype_element":"Dissipation Budget","domain_realization":"Accounting for heat delivered to undercured regions, heat lost through tooling and ambient exposure, heat absorbed by the phase-change reservoir, coolant demand, and thermal load imposed on resin and fibers."},{"archetype_element":"Runaway Feedback Monitor","domain_realization":"Continuous monitoring of local temperature rise rate, spatial temperature spread, dielectric cure signal, and mold-cavity pressure for self-accelerating reaction or blocked volatile release."},{"archetype_element":"Decoupling and Re-Equilibration Rule","domain_realization":"Thermally isolate the bridges and return to the validated cooling or finishing dwell when the usable gradient is exhausted or any stop threshold is reached."},{"archetype_element":"Waste or Entropy Sink","domain_realization":"A sized phase-change reservoir and cooling loop that absorb heat not safely transferable to colder material."},{"archetype_element":"Gradient Replenishment Check","domain_realization":"Confirm that continued reaction is still generating a directional heat flux; do not add disturbance merely to preserve the routing phase."},{"archetype_element":"Stakeholder Harm Boundary","domain_realization":"No trial may exceed resin decomposition limits, tool pressure limits, ventilation capacity, operator exposure controls, or the quality authority's prohibition on releasing experimental parts."}],"mechanism_mapping":[{"mechanism_slug":"gradient_and_flux_map","role":"Uses distributed temperature and conversion measurements to identify when and where core exotherm can be routed toward colder, undercured zones.","counterfactual_removal":"Without the map, bridge placement and activation would be based on assumed rather than observed gradients, so heat could be routed toward an already hot or fully cured region."},{"mechanism_slug":"dissipation_ledger","role":"Separates heat contributing to perimeter cure from heat lost to tooling, absorbed by safety sinks, or imposed as damaging thermal exposure.","counterfactual_removal":"Without the ledger, a lower external-heater input could be mistaken for useful recovery even if the heat were merely displaced into coolant demand or material damage."},{"mechanism_slug":"bounded_coupling_pilot","role":"Tests one instrumented coupon-scale mold with limited coupling area, duration, and thermal capacity before any production-scale exposure.","counterfactual_removal":"Without bounded exposure, an incorrect thermal model or delayed sensor response could affect an entire large part and exceed available sink capacity."},{"mechanism_slug":"runaway_stop_rule","role":"Forces bridge isolation and increased cooling when temperature, heating rate, pressure, or nonuniformity leaves the operating window.","counterfactual_removal":"Without an automatic stop condition, routed heat could accelerate reaction in receiving zones and create a coupled thermal runaway."},{"mechanism_slug":"damping_and_venting_controls","role":"The phase-change reservoir, cooling loop, and maintained volatile-release path absorb excess heat and prevent pressure accumulation while useful routing occurs.","counterfactual_removal":"Without dampers and a safe sink, heat that cannot perform useful cure work would accumulate in the laminate or tool."},{"mechanism_slug":"post_gradient_re_equilibration_review","role":"Checks final conversion distribution, thermal damage markers, void content, residual stress, and sink recovery after the transient gradient has ended.","counterfactual_removal":"Without the review, apparent in-cycle control could conceal a poorly cured or internally damaged final state."}],"causal_chain":["Polymerization in the thick laminate generates a transient core exotherm faster than the tool naturally removes or redistributes it.","Distributed sensing identifies a directional temperature and conversion gradient from the hot, faster-curing core toward colder, slower-curing edges.","Switchable thermal bridges couple a bounded portion of that heat flux into the colder regions.","Transferred heat advances perimeter cure that would otherwise require additional external heating or dwell.","The dissipation ledger distinguishes useful cure work from tool losses, safety-sink loading, and damaging thermal exposure.","Feedback detects whether routing is reducing cure nonuniformity or instead amplifying temperature, reaction rate, or pressure.","At gradient exhaustion or a stop threshold, the bridges decouple and excess heat is absorbed or removed.","A controlled finishing dwell and re-equilibration review determine whether the coupon reached a viable, spatially uniform final cure state without hidden damage."],"baseline":"A validated oven or heated-mold cycle that treats reaction exotherm mainly as a peak-temperature constraint, using conservative ramp rates, dwell time, and surface cooling rather than deliberately routing core heat to colder regions.","nearest_rivals":["Conventional slow-ramp cure scheduling, which limits the exotherm but does not deliberately use its spatial gradient as a heat source for undercured zones.","Uniformly heated tooling, which supplies heat from outside the laminate rather than coupling an internally generated transient gradient to a selected work channel.","Passive high-conductivity tooling, which spreads heat continuously but lacks a bounded activation window, dissipation accounting, and an explicit decoupling rule.","Catalyst or initiator grading, which changes local reaction kinetics rather than routing heat released by an already developing reaction.","Post-cure annealing, which applies a later controlled thermal cycle after the main disequilibrium window rather than extracting work from that window."],"remaining_contrastive_claim":"The candidate is specifically a sensor-gated, reversible routing of already-generated cure exotherm from a hotter, faster-reacting region to colder, undercured regions, with explicit accounting for dissipated heat and mandatory decoupling; its defining operation is neither uniform heating nor simple suppression of the hotspot.","authority_safety":{"decision_authority":"The materials process owner may authorize a non-production coupon trial only after concurrence from the cure-tool engineer and environmental health and safety reviewer; the quality authority alone controls any later use of resulting material data or parts.","authorized_first_step":"Run one instrumented, non-production coupon-scale comparison in a rated laboratory mold using the approved resin quantity, preset bridge states, validated sensors, and hardwired temperature and pressure cutoffs.","excluded_actions":["No production-part processing","No shipment, installation, or structural use of experimental coupons","No deliberate increase of initiator concentration or creation of a larger exotherm to strengthen the gradient","No bypass of tool interlocks, ventilation, pressure relief, or material safety limits","No scale-up beyond the rated heat-sink capacity","No manual continuation after a stop threshold or loss of required sensor signals"],"halt_rollback":"On any threshold breach, disagreement among redundant critical sensors, blocked vent path, cooling failure, or unexpected gas evolution, isolate the thermal bridges, stop external heating, activate the validated cooling and pressure-relief sequence, quarantine the coupon, and return the mold to its approved safe state before review."},"negative_tests":{"strongest_counterevidence":"High-resolution measurements show that the apparent core-to-edge gradient is too brief, too weak, or too poorly aligned with remaining perimeter cure demand to transfer useful heat before the core must be cooled.","problem_falsifier":"Matched baseline coupons show no consequential spatial cure lag or hotspot conflict: the validated cycle already reaches the required conversion distribution without extended dwell, excessive peak temperature, or relevant defect formation.","intervention_falsifier":"With the bridge active inside the operating window, the receiving zones do not advance in cure relative to matched controls, or any advance is accompanied by greater peak temperature, pressure, void content, residual stress, cooling burden, or final cure nonuniformity.","risks":["Thermal bridges create new local hotspots or steep interfacial gradients.","Sensor latency or failure permits self-accelerating cure before shutdown.","Transferred heat reaches a region with insufficient remaining reaction demand and becomes damaging exposure.","The phase-change reservoir or cooling loop saturates before the reaction subsides.","Tool inserts obstruct volatile escape and raise void or pressure risk.","Faster local gelation traps volatiles or locks in residual stress.","Heat savings are illusory because energy and maintenance burdens shift to cooling or tool reset.","Coupon behavior fails to scale because thickness, surface-area ratio, and feedback latency change.","Added tool complexity reduces repeatability or contaminates the laminate."]},"next_evidence_step":"Fabricate two compositionally matched, non-structural thick coupons and process them in the same rated instrumented mold protocol, one with the thermal bridge disabled and one with its preset gated schedule enabled. Record spatial temperature, heating rate, dielectric cure response, cavity pressure, heater energy, cooling and phase-change-sink load, and every stop-rule event; after cure, measure conversion at core and edge, void content, and residual-stress or warpage indicators. The step ends after these two runs and a predeclared comparison of whether routed heat coincided with edge cure advancement while all safety and final-state limits remained satisfied.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"No other experiment candidates or proposals were inspected; diversity relative to them is therefore not assessed. This candidate was derived solely from the supplied archetype record and chemistry-and-materials domain card.","revision_record":{"parent_version":null,"progress_targets_addressed":[],"conceptual_changes":[],"operational_changes":[],"evidence_changes":[],"claim_changes":[]}}