Modified powders of carbon nanotrubs for abrasive tools

Abstract

The results of the investigation of the influence of the successive application of pulsed processing by high-voltage electrical discharges and sedimentation, chemical and electrochemical treatments in the modification of carbon nanotube powder on their physical and chemical characteristics, the distribution of powder particles and uniformity in size are presented. A new technology of powder modification is developed, the application of which allows to obtain finely dispersed, uniformity in size, with low content of impurities, with a hydrophobic, energetically active surface of a powder of the new brand MWCNT-PCO. The use of powder in the manufacture of composite coating of diamond allowed to obtain a regular skeletal structure of the coating with a developed area of its surface, which contributes to increasing the wear resistance of the grinding wheels