Materials Type: Harder Resources reward from the sharper silicon carbide, when softer products and finer finishes are better obtained with aluminum oxide. In summary, whilst SiC technology faces specified production and integration worries, continual innovations are conquering these barriers. Silicon carbide was initial synthesized by Edward G. Acheson in 1891 http://brookssrmn069.timeforchangecounselling.com/silicon-carbide-in-new-vigour-era-programs-and-future-tendencies