A New Fraction-Averaging Approach to the Diagnostics of the Technological Properties of High-Strength Synthetic Diamond Powders

Pycnometric-Additive Determining of the Degree of Coating of High-Strength Synthetic Diamond Grinding Powders using the Actual 3D Morphology of their Grains

“…There are three options regarding the specified shape of grains: 1) all grains of grinding powder are bodies of irregular shape; 2) all grains of abrasive powder are bodies of the correct shape (for high-strength coarse-grained abrasive powders SD is an octahedron, cubooctahedron, truncated octahedron); 3) one part of the sanding powder grains has an irregular shape, the other part has the correct shape. With regard to high-strength SD grinding powders, the third option is the most realistic, which is confirmed, for example, by the data of [37]. In this case, grains of irregular shape, which make up a small proportion of the total number of powder grains, are the main source of negative influence on the reliability of determining the degree of coating.…”

“…The grains of such grinding powders are mainly in the shape of octahedra, cubooctahedrons, and truncated octahedra. A rather convincing justification of this fact with reference to wellknown publications, in which you can find visual confirmation of such a 3D shape of the grains of high-strength SD grinding powders, was carried out in work [37]. Ibid is also noted that the relative share of grains of the specified shape in such grinding powders is 83-98%.…”

“…Ibid is also noted that the relative share of grains of the specified shape in such grinding powders is 83-98%. From this follows an important conclusion that when determining the degree of coating of high-strength SD grinding powders, it is advisable to use the combined approach proposed for the first time in [37].…”

“…At the same time, the presence of grains of the correct shape in the sanding powder and taking this into account creates potential opportunities to reduce the mentioned negative impact. From this follows an important conclusion that when determining the degree of coating of high-strength SD grinding powders, it is advisable to use the combined approach proposed for the first time in [37]. This approach does not involve the total replacement of every single grain with an extrapolationaffinity 3D model.…”

“…For high-strength grinding powders, SD is an octahedron, cubooctahedron, or truncated octahedron. The proposal to use the combined algorithmic scheme described above and the methodical approach based on it, as noted in [37], are completely new for the field of diagnosing the technological properties of synthetic diamond grinding powders, including the degree of their coating. The key to the successful implementation of the mentioned innovation is the availability of methodical means of automated identification and quantitative assessment of the shape similarity of the projection of grains of synthetic diamond grinding powders [38].…”