The rotating disk has many engineering applications as in floppy, hard, compact, laser, and recently optical disk drives.
Hard, compact and adherent vanadium and chromium carbide and vanadium nitride coatings, mainly consisting of Cr7C3, V6C5 and VN, were obtained using different processing conditions.
It may be microscopic in size or developed into visible structures, such as brackets, mushrooms, puffballs, rhizomorphs (long strands of hyphae cemented together), sclerotia (hard, compact masses), stinkhorns, toadstools, and truffles.
In this study, a new composite impregnated diamond bit was designed to solve the slipping problem when impregnated diamond bit is used for extra-hard, compact, and nonabrasive rock formation.
The largest deposit worked in the United States is in northern Santa Barbara County, California, where beds more than 300 metres (1,000 feet) thick extend over several square miles and vary from soft earth to hard, compact rock that can be sawed into blocks; other production has come from Nevada, Washington, and Oregon.
The layer is weakly fractured to hard compact basalts.
17, 19, 21, 23, 24, 25, and 26 which is weakly fractured to hard compact basalts.
29, 30, 31, and 33 of weakly fractured to hard compact basalts.
16 and 22 which is found to be weakly fractured to hard compact basalts.
27, 28, 29, 30, 31, and 32 showing weakly fractured to hard compact basalts.
