The advantages of CVD diamond growth include the ability to grow diamond over large areas and on various substrates, and the fine control over the chemical impurities and thus properties of the diamond produced.
12.
Or, do you mean " a very high-quality carbon crystal with few chemical impurities, negligible optical aberrations, and no visible inclusions or discoloration " ? talk ) 16 : 34, 17 July 2011 ( UTC)
13.
In a later study by Piomelli " et al . ", the MGL-inhibitory activity attributed to URB754 is in fact due to a chemical impurity present in the commercial sample, identified as bis ( methylthio ) mercurane.
14.
The rated voltage of different film materials depends on factors such as the thickness of the film, the quality of the material ( freedom from physical defects and chemical impurities ), the ambient temperature, and frequency of operation, plus a safety margin against the breakdown voltage ( dielectric strength ).
15.
More inherent aspects may play a role or variation at microscopic levels may not be measured or controlled by any means ( e . g . one good example is the unavoidable existence of micro cracks and chemical impurities in standard metal products, which may progress over time under physical or chemical " loading " into macro level defects ).
16.
Wrought iron which had been faggoted twice was referred to as " Best "; if faggoted again it would become " Best Best ", then " Treble best ", etc . Faggoting stretches chemical impurities within the metal into long thin inclusions, creating a Pa ) . " Treble best " could reach 28 short tons per square inch ( 386 MPa ).
17.
Typically, reactors also require inclusion of extremely chemically pure neutron moderator materials such as deuterium ( in heavy water ), helium, beryllium, or carbon, the latter usually as graphite . ( The high purity for carbon is required because many chemical impurities such as the boron-10 component of natural boron, are very strong neutron absorbers and thus poison the chain reaction and end it prematurely .)
