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Negative thermal expansion could mean more stable electronic systems


Mene materials get expanded when heated but there are still two materials that do the opposite and they eventually contract on hating this usually occurs over an arrow temperature range but is not easy to tune up but now the resources from Imperial college have discovered a material that can be chemically tailored to expand and contract as per requirement over a range of temperature.

The new materials can be designed to contract more or less under heating and so can be matched to cancel the expansion of other materials and to create components that do not change shape when heated.


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