
1) Composite material
Found on
https://www.crosswordclues.com/clue/glidcop

Glidcop is the registered trademark name of North American Hoganas, Inc. that refers to a family of copper-based metal matrix composite (MMC) alloys mixed primarily with aluminum oxide ceramic particles. The addition of small amounts of aluminum oxide has minuscule effects on the performance of the copper at room temperature (such as a small decre...
Found on
http://en.wikipedia.org/wiki/Glidcop
No exact match found.