Droplet impact on hot surfaces results in either droplet-surface contact or non-contact, i.e., the Leidenfrost state. The droplet is levitated upon its vapor, deteriorating heat transfer. temperature depends thermal properties of surface, which are usually characterized by two parameters: diffusivity and effusivity. In this paper, effects these parameters clarified experimentally varying one in...

1. Introduction 1. Introduction Zirconia is widely used due to its high oxygen diffusivity in various technological applications like gas sensors, fuel cells, catalytic membranes etc. The material shows an excellent thermal stability, combined with very good mechanical properties.

The method proposed by Mooney and Steg (1969) for obtaining the dilatational dependence of the Gr0neisen parameter from data on the pressure dependence of the thermal conductivity (or, equivalently, thermal diffusivity) is critically examined and applied to thermal diffusivity data for sodium chloride and quartz. The values obtained are ?o'(--(d?/dA)la_-o) = 3.0 for sodium chloride and 7o' = 2....

Due to unique features like small thermal masses and reduced conductivities, miniaturized thermal sensors offer properties superior to those provided by comparable macroscopic measurement setups. In this contribution a micromachined device is applied to characterize the thermal transport properties of various liquids. By means of sinusoidal excitation of a heater structure placed on a micro-bri...