Cermet and Coated Cermet
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
May 10, 2012
app pub date -
Jun 30, 2010
filing date -
Jun 30, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A cermet has a WC first hard phase, a second hard phase including one or more of a carbide, nitride and carbonitride of an element(s) of groups 4, 5 and 6 of the Periodic Table including a titanium element, and a mutual solid solution thereof, and a binder phase. In the cermet, a carbon amount CT (% by weight), a tungsten amount CW (% by weight), and a nitrogen amount CN (% by weight) satisfy 0.25<(CN/(CT−0.0653·CW))<6. The cermet has a surface region with a thickness of 5 to 100 μm which includes the first hard phase and the binder phase, and an inner region which includes the first and second hard phases and the binder phase. In a cross-section of the inner region, a ratio of an area of the first hard phase to an area of the second hard phase is 0.15 to 4.
First Claim
Other Claims data not available