Tungsten Oxide

Thermal expansion is a common problem in many fields, such as mechanical, electronic, optical and structural materials.    Aluminum and zirconium tungstate are negative thermal expansion materials.  Aluminum is a metal type negative thermal expansion material, which is characterized by excellent conductivity and thermal conductivity, and the material price is relatively cheap, it can deal with the general application. But in the high temperature and cold environment, but its negative thermal expansion is less than zirconium tungstate, but zirconium tungstate production cost is higher, the performance and price trade-off dilemma. Fortunately, zirconium tungstate has good compatibility and can be used to form composite particles with aluminum. The traditional preparation technology of aluminum based zirconium tungstate composite material is heating sintering and pressing. Preparation process of aluminum based zirconium tungstate composite: 1. The zirconium tungstate powder...