Zirconium Tungstate

Introduction

Chinese Name：钨酸锆
CAS Number：16853-74-0
Chemical Formula：ZrW₂O₈ （O₈W₂Zr）
Molecular Weight：586.89900
Exact Weight：585.76600

Application

It has important applications on an integrated circuit, optics, aerospace engines, dental materials, sensors .

Zirconium tungstate compound

Zirconium tungstate compound within 0.3 ~ 1 050 K temperature range showed a significant isotropic negative thermal expansion characteristics, which received extensive attention. First with the co-precipitation method ZrW₂O₈ compound precursor powder, and then by the low temperature heat treatment and 1 200 oc, 2 h composite into a high-purity compound ZrW₂O₈, finally melt pressure impregnation prepared to ZrW₂O₈ / 6013Al composites. After X-ray diffraction analysis, optical microscopy and analysis, and thermal expansion cytometry, we found that the composite material has a high density, ZrW₂O₈ large volume fraction (80%), low coefficient of expansion (3 × 10^{- 6} / K), etc., and aluminum alloy (thermal expansion coefficient of 23. 4 × 10^{- 6} K^{- 1}) compared to the greatly improved thermal properties, has good prospects.