| 摘要 |
<p>A method for processing a surface of a diamond article 160 to remove carbon atoms by a redox reaction with copper oxide molecules on a surface of one or more machining parts 120 to thermo-chemically machine the article into an artefact according to a specification comprises the steps of providing a diamond article, providing one or more machining parts having a surface made substantially of copper, providing a specification, fixing or placing the article and the machining part or parts into an arrangement or an assembly 110 and placing in an environment, passing a flow of a gas mixture containing oxygen and a controlled amount of a reducing agent through the environment, heating the environment to a temperature greater than 300oC and less than the auto-ignition temperature of the reducing agent, establishing contact between the article and the surface of the machining part or parts and moving the part or parts according to the specification to produce the artefact, stopping the flow of the gas mixture, allowing the environment to cool and extracting the artefact.</p> |
