Characterisation of microcrystalline diamonds deposited by HFCVD
by Tao Zhang; Feng Qin; Wanghuan Qian; Lijun Zhang; Fanghong Sun
International Journal of Abrasive Technology (IJAT), Vol. 8, No. 4, 2018

Abstract: The performances of CVD microcrystalline diamond powders by the seeding and self-nucleation method, including the particle size composition, crystal morphology, and diamond purity, are evaluated by the China industry standard of conventional diamond powders (JB/T 7990-2012). The detection results show over 80% particles grown on the seeds exhibit a cubo-octahedral with smooth surfaces and no obvious growth defects, while they can hardly meet the corresponding commercial requirements of particle size composition due to the existence of 10%-23% spontaneous particles (0.5~1.2 μm). For the powders deposited by self-nucleation method, the particle size composition agrees well with the model defined by the industry standard, and 70.5% crystals exhibit the cubo-octahedral or icosahedron morphology, as well as their surface quality are little worse than those grown on the seeds due to unwanted secondary nucleation. Besides, the two types of CVD powders have a high purity detected by micro-Raman spectroscopy.

Online publication date: Tue, 25-Sep-2018

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Abrasive Technology (IJAT):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email