YAG

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YAG

 (yăg)
n.
A hard synthetic yttrium aluminum garnet used in laser technology and as a gemstone.
[y(ttrium) + a(luminum) + g(arnet).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

yag

(jæɡ)
n
an artificial yttrium aluminium garnet used in jewellery and in lasers
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

YAG

(yæg)

n.
a synthetic yttrium aluminum garnet, used for infrared lasers and as a gemstone.
[1960–65; y(ttrium)a(luminum)g(arnet)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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The YAG vessel replacement program (ORCAs) was to provide and have proven to be an invaluable asset in meeting all of these goals", said Vice-Admiral Buck (ret'd), who was chief of the maritime staff when the ORCA program was approved.
Sea cadets back at sea
An errant laser or even the reflection off a metallic surface can quickly blind an observer, whether [CO.sub.2] or YAG. While [CO.sub.2] can be stopped by glass (eye-glasses) or plexiglass, YAG's shorter wavelength requires an opaque barrier (usually metal, although drywall will do) and special (expensive) viewing windows.
The premium for YAG over [CO.sub.2] remains large--approximately double, although there has been some improvement in the key consumable, the flash lamps, Rofin Sinar's Walker reports.
A 400 W YAG laser in a welding mode costs about $9/hr and, in a cutting mode, $10 to $11.A 1-kW YAG laser is probably $15/hr to $16/hr running cost for welding."
A key factor is that the energy conversion factor for YAG is only 4%--you must buy 25 kW of electric power to get 1 kW in laser energy.
But there are some negatives that will slow down the spread of YAG laser use:
"With 1-kW YAG, you can weld stainless-steel pipe to depths up to 0.5".
Muscle YAGs: precision plus power

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