Diamond is the hardest and the most abrasive-resistant natural substance
known and is, thus, rapidly being used in numerous industries. Apart from
using the diamond stone for different applications, diamond is also churned
into a powder and also used as a paste, depending upon the need of the
specific application. Primarily, both diamond powder and diamond paste are
used for polishing various substances where high surface finish is given
prime importance.
To begin with, diamond powder is available in two types namely, natural
diamond powder and synthetic diamond powder. Until 1957, before the
emergence of synthetic diamond powder, natural diamond powder was
predominantly used for commercial purposes. It is more expensive than
synthetic diamond powder and is ideal for application on materials like
Single Crystal Ferrite, Tungsten Carbide (6% CO), or Ti-6AL-4V Alloy, as it
has a lower cutting rate. On the other hand, synthetic diamond powder has a
distinctive feature termed as "friability", which refers to the ability of
the material to fracture the object. This feature of friability helps
produce superiorly polished, high shine edges of objects. Thus, synthetic
diamond powder is widely being preferred over natural diamond powder owing
to its higher cutting rate.
Diamond powders, both natural as well as synthetic, are available in the
market in various coatings, particle shapes and grades. Some of the common
areas where diamond powders find application are lapping, polishing,
grinding & sawing of industrial tools and components. Also, these can be
used for polishing precious and semi-precious stones such as Diamonds, Ruby,
Emerald and Cubic Zirconia, to name a few.
Diamond paste, basically, refers to compound of finely grounded or powdered
diamond particles that are used for polishing numerous surfaces and tools.
Diamond paste is usually liquid based, either water or oil, which acts as
the binding agent.
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