{"uid":"cap_lro8E_WIWDoNVDFRAIX70","slug":"thermal-expansion-mismatch-calculator-05999a80","name":"Thermal-Expansion Mismatch Calculator","description":"Estimate differential strain from supplied expansion coefficients and temperature changes. For preliminary scenarios; no stress, delamination or reliability certification. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.","url":"https://www.mahastrategies.com/api/v1/compute/materials/thermal-expansion-mismatch?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"dataClass":{"enum":["public","synthetic"],"type":"string"},"alphaFilmPerK":{"type":"number","maximum":1000000000000,"minimum":-1000000000000},"deltaTemperatureK":{"type":"number","maximum":1000000000000,"minimum":-1000000000000},"alphaSubstratePerK":{"type":"number","maximum":1000000000000,"minimum":-1000000000000}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.010053","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.010053/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.010053","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.010053","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DdweN8kjwEm4qivf4l30t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.010053","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Estimates differential strain between two materials given their thermal expansion coefficients and a temperature change","exampleAgentPrompt":"Can you estimate the thermal expansion mismatch strain between a silicon film with a CTE of 2.6e-6 per K and an alumina substrate with a CTE of 6.5e-6 per K over a temperature swing of 200 K? This is for a preliminary public-data scenario.","exampleUseCases":[{"title":"Thin film on substrate screening","prompt":"I need to quickly check the differential strain between a copper film (CTE 17e-6 per K) and a silicon substrate (CTE 2.6e-6 per K) over a 150 K temperature change — just a preliminary public-data estimate to see if the pairing is worth pursuing."},{"title":"Semiconductor packaging compatibility","prompt":"Can you compute the thermal mismatch strain for a GaN-on-SiC layer stack? GaN has a CTE of about 5.6e-6 per K, SiC is about 4.0e-6 per K, and I'm looking at a delta T of 250 K. Use synthetic data class."},{"title":"PCB solder joint thermal cycle estimate","prompt":"What's the estimated differential strain between a FR4 board (CTE ~18e-6 per K) and a ceramic component (CTE ~7e-6 per K) across a 100 K thermal cycle? Flag it as public data for a feasibility screening."}],"resultDescription":"Returns the estimated differential strain (dimensionless or in strain units) arising from the mismatch between the two supplied thermal expansion coefficients over the given temperature change. This is a preliminary numerical estimate for screening purposes only; it does not include stress, delamination risk, or reliability certification.","failureModes":["Missing required fields (alphaFilmPerK, alphaSubstratePerK, or deltaTemperatureK) return a validation error","Values outside the allowed numeric range trigger a boundary error","Invalid or missing dataClass enum value causes a request rejection","Payment failure or insufficient USDC balance prevents call execution","Server-side computation error returns a 5xx response"],"whenToPreferThis":"Choose this endpoint when you need a fast, inexpensive preliminary numerical estimate of differential thermal strain between a thin film and a substrate during early design or material selection. It is ideal for screening CTE compatibility before committing to more detailed finite-element or reliability simulations. Not suitable for stress analysis, delamination prediction, or any reliability certification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-02T00:38:37.963Z","isFirstParty":false,"canonicalSlug":"thermal-expansion-mismatch-calculator-05999a80"}