Universal Temperature Dependence of the Diffusons Contribution to the Thermal Conductivity of Complex Clathrate-type Crystals
Scientific studies of thermal properties have been carried out for samples different in material, method of preparation, etc., but having certain common characteristic. Experimental heat capacity studies were carried out for vapor deposited and melt-spun PdCuSi as well as poly(4-tert-butylstyrene) (PtBS) polymer and PtBS nanospheres.
Also low-temperature studies of thermal transport in the composites based on epoxy with different graphene oxide contributions and thermal reduced graphene oxide (TRGO) with fullerens C60 (HyFn) were provided. The so-called "boson peak" was observed in the low-temperature region for all the studied samples.