MOLDS WITH COATINGS FOR HIGH TEMPERATURE USE IN SHAPING GLASS-BASED MATERIAL
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United States of America Patent
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Jul 20, 2017
app pub date -
Jan 19, 2017
filing date -
Jan 20, 2016
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Abstract
A mold with a multi-layer coating is disclosed. The mold may include a mold body having an outer surface and a multi-layer coating disposed on the outer surface. The multi-layer coating may include a diffusion barrier layer disposed on the outer surface of the mold body and an intermetallic layer disposed on the diffusion barrier layer, wherein the intermetallic layer comprises Ti, Al, and an additional metal selected from the group consisting of Zr, Ta, Nb, Y, Mo, Hf, and combinations thereof The diffusion barrier layer may restrict diffusion of metal from the mold body to the intermetallic layer.
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