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the claim
Certain materials exhibit negative thermal expansion and expand in response to cold temperatures
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
9 sources for · 0 against

Numerous scientific studies document negative thermal expansion (NTE) in various materials, proving that certain compounds contract upon heating and consequently expand in response to cold temperatures.

Evidence for · 9
Progress of Research in Negative Thermal Expansion Materials: Paradigm Shift in the Control of Thermal Expansion
2018 · cited by 172
Reviews various materials that exhibit negative thermal expansion (NTE), demonstrating that certain materials contract rather than expand under thermal changes.
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The analysis

The retrieved literature extensively discusses negative thermal expansion (NTE) materials, which contract upon heating and expand when cooled. Multiple studies across different material classes (frameworks, oxides, borates, carbon allotropes) consistently support the claim.

More for · 8
Negative thermal expansion in framework structure materials
2021 · cited by 120
Discusses framework structure materials that contract instead of expand upon heating, inherently expanding when cooled.
The novel borate Lu5Ba6B9O27 with a new structure type: synthesis, disordered crystal structure and negative linear thermal expansion.
2019 · cited by 12
Demonstrates negative linear thermal expansion in specific borate crystals.
High-entropy negative thermal expansion oxide with thermally enhanced upconversion luminescence
2025 · cited by 5
Reports on high-entropy oxides exhibiting negative thermal expansion.
Low-temperature investigation of natural iron-rich oxoborates vonsenite and hulsite: thermal deformations of crystal structure, strong negative thermal expansion and cascades of magnetic transitions
2021 · cited by 4
Shows strong negative volume thermal expansion in oxoborates at low temperatures (cold conditions).
Colossal negative thermal expansion in a cucurbit[8]uril-enabled uranyl-organic polythreading framework <i>via</i> thermally induced relaxation.
2023 · cited by 3
Highlights giant negative thermal expansion in a framework via thermally induced relaxation.
Multifunctionality of Magnetic La(Fe, Si/Al) 13 ‐Based Materials: Negative Thermal Expansion and Magnetocaloric Effect
2025 · cited by 3
Discusses materials exhibiting negative thermal expansion to counteract thermal expansion mismatch.
(KCo)3+ co-substitution and enhancement of negative thermal expansion in (KCo)xSc2-xMo3O12 ceramics
2025 · cited by 3
Analyzes ceramics that exhibit negative thermal expansion behavior.
Correlating negative thermal expansion and thermal conductivity in two-dimensional carbon-based materials.
2024 · cited by 3
Explores two-dimensional carbon-based materials that undergo contraction upon heating and expansion upon cooling.
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first checked04 Aug 2026
judged → SUPPORTED · 8904 Aug 2026
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