Applications diamond materials

Now for some real numbers. Table 3.1 is a ranked list of Young s modulus of materials - we will use it later in solving problems and in selecting materials for particular applications. Diamond is at the top, with a modulus of lOOOGPa soft rubbers and foamed polymers are at the bottom with moduli as low as 0.001 GPa. You can, of course, make special materials with lower moduli - jelly, for instance, has a modulus of about 10 GPa. Practical engineering materials lie in the range 10 to 10 GPa - a... 

The term fixed cutter is used as the most correct description for the broad category of nonroller cone rock bits. The cutting elements may be comprised of any suitable material. To date, several types of diamond materials are used almost exclusively for fixed cutter petroleum drilling applications. This leads to the widespread use of the term diamond bits and PDC bits in reference to fixed cutter designs. 

Diamond is a material possessing unique properties. It has extraordinarily high atomic density, hardness, insulating ability, thermal conductivity, and chemical inertness (see Table 1). The history of its intensive electrophysical, physico-chemical, and optical studies covers many decades [1, 2], Its applications in materials science [3], microelectronics [4], and so on, are ever widening. 

Qureshi, A., Kang, W.P., Davidson, J.L, and Gurbuz, Y. (2009) Review on carbon-derived, solid-state, micro and nano sensors for electrochemical sensing applications. Diamond and Rdated Materials, 18 (12), 1401-1420. 

Elemental carbon is usually handled in three forms graphite, diamond, and amorphous carbon. Graphite and amorphous carbon have been extensively used in electrochemistry because of their high electrical conductivity, chemical stability, versatility, and low cost. For electrochemical applications, such materials can be manufactured in bars, powders, and fibers or can even form conducting composites when appropriate binders are used. A number of carbon-based materials, such as pyrolytic carbon, carbon blacks, activated carbons, graphite fibers, whiskers, glassy carbon, etc., have been used in electrochemistry for decades (Yoshimura and Chang, 1998). 

A modification of functional groups already attached to the nanodiamond surface is of considerable interest for the development of new diamond materials for biomedical or mechanical applications. 

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