Limits RegistryPUBLIC RECORD
Limits RegistryHigh-purity diamond exhibits thermal conductivity on the order of 2200 W m⁻¹ K⁻¹ near room temperature.
The question, scope, and sources behind this Registry record.
High-purity diamond exhibits thermal conductivity on the order of 2200 W m⁻¹ K⁻¹ near room temperature.
Record the thermal conductivity of high-purity diamond near 300 K under a specified crystal and measurement protocol.
Diamond is a benchmark heat-spreading material because its stiff covalent lattice supports long phonon mean free paths. Reported values vary with isotope composition, defect concentration, crystal orientation, and measurement method.
Materials science data and standards — Room-temperature thermal conductivity of diamondChange a parameter to stress-test whether a proposed result is still inside the published specification. This is an audit aid, not a proof checker.
Current frontiers derived from accepted Claims.
An observed or demonstrated result; no opposing bound is implied.
The frontier is not sacred
Most progress starts with a disagreement that survives contact with evidence. If you can push the known lower bound up or pull the upper bound down, show us the work.
≥ when you have shown that at least this value is achievable.≤ when you have shown that anything above this value is impossible.No vibes. State the value, define the scope, and link the paper, proof, code, or reproduction that lets another person check it. Editors review every challenge before the public record changes.
Challenge this recordAssertions tied to evidence, attribution, and review.
The frontier as it changed over time.
Only accepted Claims matching the current specification contribute to the displayed bounds. Strict inequalities remain open; contradictory Claims require editorial review.
Permanent ID limitsregistry.com/limits/LR-004201
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Limits Registry. LR-004201. Room-temperature thermal conductivity of diamond. 2026.