US5882778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard coating of excellent wear resistance and hard coating coated member thereof
Assignee: Mitsubishi Materials Corp
•
Filing: 1997-03-17
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Granted: 1999-03-16
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Expires: 2017-03-17
Abstract
Abstract A hard coating formed on a substrate material and having a first layer and a second layer of which, the first layer is a compound composed of one or more types of metallic elements selected to include at least aluminum or titanium from a group comprising aluminum, titanium and silicon; and also selected from one or more types of non-metallic elements from a group comprising boron, carbon and nitrogen, and the second layer is a lamination of AlBN on the surface.
Inventors
- 👤 Yasuaki Sugizaki
- 👤 Chunghsien Tsai
- 👤 Tsutomu Ikeda
- 👤 Yasuyuki Yamada
- 👤 Yusuke Tanaka
- 👤 Yasunori Wada
- 👤 Yasushi Onishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:37
CPC Classifications
C; C23; C23C; C23C28/00; C23C28/04; C23C28/044; C23C14/00; C23C14/06; C23C14/0641; C23C14/0664; C23C30/00; C23C30/005; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
67 words
A hard coating formed on the surface of a substrate material, said coating having a first layer and a second layer, wherein said first layer is formed on the substrate material and is a compound composed of (a) aluminum or titanium or a mixture thereof, and optionally silicon; and (b) boron, carbon or nitrogen, or a mixture thereof, and the said second layer is composed of AlBN.
Claim 2
Dependent Claim
67 words
A hard coating formed on the surface of a substrate material, said coating having a first layer and a second layer, wherein said first layer is formed on the substrate material and is a compound composed of (a) aluminum or titanium or a mixture thereof, and optionally silicon; and (b) boron, carbon or nitrogen, or a mixture thereof, and the said second layer is composed of AlBN.
Claim 3
Dependent Claim
25 words
The hard coating according to claim 1 in which the said first layer comprises chemical constituents as shown; (Al.sub.a Ti.sub.1-a) (C.sub.b N.sub.1-b) where, 0.25≦a≦0.75 0≦b≦0.4
Claim 4
Dependent Claim
10 words
The hard coating according to claim 2 wherein 0.45≦a≦0.70, 0≦b≦0.2.
Claim 5
Dependent Claim
9 words
The hard coating according to claim 3 wherein 0.56≦a≦0.65.
Claim 6
Dependent Claim
25 words
The hard coating according to claim 1 in which the said first layer comprises chemical constituents as shown; (Al.sub.c Ti.sub.1-c) (B.sub.d N.sub.1-d) where, 0.05≦c≦0.75 0.02≦d≦0.12
Claim 7
Dependent Claim
10 words
The hard coating according to claim 5 wherein 0.25≦c≦0.70, 0.03≦d≦0.08.
Claim 8
Dependent Claim
12 words
The hard coating according to claim 6, wherein 0.50≦c≦0.65. 0.02 <d <0.12
Claim 9
Dependent Claim
28 words
The hard coating according to claim 1 in which the said first layer comprises chemical constituents as shown; (Al.sub.x Ti.sub.1-x-y Si.sub.y) (C.sub.z N.sub.1-z) where, 0.05≦x≦0.75 0.01≦y≦0.1 0≦z≦0.4 9.
Claim 10
Dependent Claim
11 words
The hard coating according to claim 8, wherein 0.25≦x≦0.7, 0.02≦y≦0.08, 0≦z≦0.2.
Claim 11
Dependent Claim
10 words
The hard coating according to claim 9, wherein 0.56≦x≦0.7, 0.02≦y≦0.05.
Claim 12
Dependent Claim
22 words
The hard coating according to claim 1 wherein the AlBN has the formula Al p B q N 1-p-g wherein 0.01≦p≦0.3, 0.2≦q≦0.6.
Claim 13
Dependent Claim
10 words
The hard coating according to claim 11, wherein 0.03≦p≦0.1, 0.4≦q≦0.55.
Claim 14
Dependent Claim
21 words
The hard coating according to claim 1 in which the said first layer has a thickness of 0.1 to 20 μm.
Claim 15
Dependent Claim
21 words
The hard coating according to claim 1 in which the said second layer has a thickness of 0.1 to 20 μm.
Claim 16
Dependent Claim
27 words
The hard coating according to claim 1, wherein the first and second layers each independently have a thickness of from about 1 μm to about 12 μm.
Claim 17
Dependent Claim
27 words
The hard coating according to claim 15, wherein the first and second layers each independently have a thickness of from about 2 μm to about 8 μm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-15 | 2002-09-14 | 2003-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-15 | 2006-09-14 | 2007-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-15 | 2010-09-14 | 2011-03-16 | $7700.00 | Window Closed / Lapsed |