Impurity content, particle size classification, particle morphology and applicability

When we get a diamond powder of the sample, how to test and judge its quality grade, through many domestic and sample testing, feel the current national standard JB/T7990-1998 has some shortcomings, it should be revised and improved as soon as possible to  cubic boron nitride the diamond micronized the needs of industry. Also found that the domestic production of diamond powder, and Europe and other developed countries, the quality compared to similar products, there is a large gap, especially in the impurity content, particle size classification, particle morphology and  synthetic diamond , a far cry. diamond powder samples home and abroad through extensive testing and evaluation, differences in the quality of their produce and the reasons for the different levels of depth and detailed study on how to improve the quality grade diamond powder, and then catch up with the world advanced level path. The quality factor diamond powder diamond powder particle mass elements are marked, particle size distribution, particle morphology, impurity content and grinding performance.