Micro mechanical parts made from diamond have many advantages due to the exceptionally high elasticity modulus of diamond. Diamond micro-parts show, under mechanical forces, much smaller changes in their geometry than parts made of metals or silicon. Additionally, diamond has a very small thermal expansion coefficient. This is the main reason why diamond parts hardly change their geometry when exposed to large temperature changes. This is useful, for example, in diamond springs.
Furthermore, diamond has high fracture strength, making it possible for small parts to withstand high force loads.
Weight / inertia
Diamond has a small specific weigth. In combination with the high toughness, stable diamond parts can be produced that, compared to most other materials, show very little inertia. This is a big advantage for processes with high accelerations and high rotational speeds.
Friction / efficiency
Because of the low friction coefficient of diamond, mechanical diamond systems (i.e. gears) show very little frictional losses and produce less frictional heat, which result in higher efficiencies. In many cases, lubricants are no longer necessary.
Diamond parts can be made transparent or opaque.
Because of the outstanding hardness of diamond, in most cases, very little wear of the diamond parts can be observed.
Diamond is one of the most chemical resistant materials. Therefore, diamond parts can be used with all aggressive media such as acids and bases.