Recovery of Diamond and Cobalt Powders from Polycrystalline Drawing Die Blanks via Ultrasound Assisted Leaching Process—Part 2: Kinetics and Mechanisms

Recovery of Diamond and Cobalt Powders from Polycrystalline Drawing Die Blanks via Ultrasound Assisted Leaching Process—Part 2: Kinetics and Mechanisms

The leaching of industrial polycrystalline diamond (PCD) blanks in aqua regia at atmospheric pressure between 60 °C and 80 °C was performed using an ultrasound to improve the rate of cobalt removal in order to be able to reuse very expensive polycrystalline diamond. Because cobalt (20 wt.%) is used...

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Bibliographic Details
Main Authors: Ferdinand Kießling, Srecko Stopic, Sebahattin Gürmen, Bernd Friedrich
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Metals
Subjects:
cobalt
aqua regia
polycrystalline diamond blanks
kinetics
thermochemistry
Online Access:https://www.mdpi.com/2075-4701/10/6/741

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