INFLUENCE OF MECHANICAL TREATMENT ON PROPERTIES OF PbI2 SINGLE CRYSTALS

Abstract

The influence of machining (chipping, grinding) on the properties of PbI2 single crystals is studied in the work. Single
crystals obtained from the gas phase and single-crystal ingots grown from the melt were used for the research. Three types of
PbI2 samples were prepared: with the chipped surface, chipped and ground surface, and samples without machining. The
method of making samples, applying electrical contacts on them, and experimental research conditions are described. The
results of measuring volt-ampere characteristics in order to evaluate the electro-physical properties of machined samples are
presented. The influence of machining on the microhardness of PbI2 crystals is analyzed. A comparative characteristic is made
to evaluate the practical application of mechanically treated PbI2 single crystals.