Thermal Radiative Characteristics of Nanostructured Tungsten at High-Temperature

Abstract

Fiber-form nanostructure grown on tungsten (W) surface has an excellent thermal radiative property at relatively low sample temperature up to 1200℃. Requirement of maintaining the above radiative property at higher temperature promotes an examination on recovery or annealing characteristics of nanostructured W surfaces, making an emphasis on dopant effect. TFGR-W-1.1%TiC/H (Toughing, Fine-Grained Recrystallized Tungsten with TiC dispersoid) was found to have best characteristics among tested doped W. However, it was noted and discussed that a further improvement at higher-temperature needs an additional processes.