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Home / Products and applications / Negative thermal expansion

Negative thermal expansion

Most materials have the property of "thermal expansion and contraction," meaning they have a positive coefficient of thermal expansion. However, some materials exhibit the opposite behavior, macroscopically showing shrinkage when heated and expansion when cooled. These materials have a negative thermal expansion (NTE) coefficient.

ZIRCONIUM TUNGSTATE negative thermal expansion

Product Appearance White powder

COPPER-ZINC-VANADIUM COMPLEX VANADATE negative thermal expansion

The material is a complex vanadate of copper, zinc, and vanadium. 

ZIRCONIUM PHOSPHOTUNGSTATE negative thermal expansion

Zirconium Phosphotungstate (ZWP) is a negative thermal expansion material with good chemical, thermal, and high-temperature mechanical stability. It exhibits significant negative thermal expansion characteristics over a wide temperature range (25-800°C) and has no phase change or water absorption in this negative thermal expansion temperature range.

ZIRCONIUM SULFATE PHOSPHATE

Zr2 SP2 O12 is the world's first material with two different contraction mechanisms: a framework mechanism and a phase transition mechanism.

BISMUTH BASED SERIES negative thermal expansion

Bismuth Nickel Iron Oxide Chemical Formula: z-BiNi1-xFexO3

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