NEGATIVE THERMAL EXPANSION MATERIAL, METHOD FOR PRODUCING THE SAME, AND COMPOSITE MATERIAL
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United States of America
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Apr 3, 2025
app pub date -
Feb 22, 2023
filing date -
Feb 22, 2023
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An object of the present invention is to provide a negative thermal expansion material having better negative thermal expansion characteristics. The present invention is a negative thermal expansion material, comprising a copper vanadium composite oxide dissolving Li atoms and represented by the following general formula (1): (CuxMy)(VaPb)Ot. In the general formula (1), M represents a metallic element with an atomic number of 11 or more other than Cu and V, 1.60≤x≤2.40, 0.00≤y≤0.40, 1.60≤a≤2.40, 0.00≤b≤0.40, 5.00≤t≤9.00, 1.60≤x+y≤2.40, and 1.60≤a+b≤2.40.
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