← Back to Patent Explorer
US5015308A Expired / Lapsed US ⏱️ 0.0 years remaining

Corrosion-resistant and heat-resistant amorphous aluminum-based alloy thin film and process for producing the same

Assignee: KOGYO YOSHIDA KK A JAPANESE CORP (50%)
•
Filing: 1989-07-11
•
Granted: 1991-05-14
•
Expires: 2009-07-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention provides a corrosion-resistant and heat-resistant aluminum-based alloy thin film consisting of a composite having a composition represented by the general formula, Al a Ni b X c N d , wherein: X is a metal element selected from Y and Zr and a, b, c and d are as follows, in atomic percentages: 70≦a≦93, 0.5≦b≦7.5, 0.5≦c≦12 and 1≦d≦18, the composite being at least 50% (by volume) composed of an amorphous phase. The thin films are produced by depositing a material having the composition represented by the above-defined general formula onto a substrate by a thin film formation technique, such as sputtering, vacuum deposition or ion plating. In the production process, only nitrogen may be supplied as gas. The novel aluminum-based alloy thin film has superior corrosion-resistance and heat-resistance together with high levels of hardness and wear resistance. Further, the thin films can be subjected to a high degree of bending.

Inventors

  • 👤 Hiroshi Yamagata

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 22:39
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/06; C23C14/14; C22; C22C; C22C45/00; C22C45/08; C23C14/0641; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 63 words
A corrosion-resistant and heat-resistant aluminum-based alloy thin film having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c N.sub.d wherein: X is a metal element selected from Y and Zr and a, b, c and d are atomic percentages falling within the following ranges: 70≦a≦93, 0.5≦b≦7.5, 0.5≦c≦12 and 1≦d≦18, said film being at least 50% by volume composed of an amorphous phase.
Claim 2
Dependent Claim 63 words
A corrosion-resistant and heat-resistant aluminum-based alloy thin film having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c N.sub.d wherein: X is a metal element selected from Y and Zr and a, b, c and d are atomic percentages falling within the following ranges: 70≦a≦93, 0.5≦b≦7.5, 0.5≦c≦12 and 1≦d≦18, said film being at least 50% by volume composed of an amorphous phase.
Claim 3
Dependent Claim 107 words
A process for producing a corrosion-resistant and heat-resistant aluminum-based alloy thin film, said film being at least 50% by volume of an amorphous phase, said process comprising depositing a material prepared so as to provide a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c N.sub.d wherein X is a metal selected from Y and Zr and a, b, c and d are atomic percentages falling within the following ranges: 70>a>93, 0.5>b>7.5, 0.5>c>12 and 1>d>18, onto a substrate by a thin film formation technique selected from a group of techniques consisting of ion plating, sputtering and vacuum depositing and thereby forming the thin film having said composition.
Claim 4
Dependent Claim 107 words
A process for producing a corrosion-resistant and heat-resistant aluminum-based alloy thin film, said film being at least 50% by volume of an amorphous phase, said process comprising depositing a material prepared so as to provide a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c N.sub.d wherein X is a metal selected from Y and Zr and a, b, c and d are atomic percentages falling within the following ranges: 70>a>93, 0.5>b>7.5, 0.5>c>12 and 1>d>18, onto a substrate by a thin film formation technique selected from a group of techniques consisting of ion plating, sputtering and vacuum depositing and thereby forming the thin film having said composition.
Claim 5
Dependent Claim 17 words
A process as claimed in claim 2 in which nitrogen of said material is supplied as gas.
Claim 6
Dependent Claim 28 words
A process as claimed in claim 2 in which said substrate is metal or resin in the form of plate, wire, filament or pipe or a deformed form.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-05-13 1994-11-12 1995-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-05-13 1998-11-12 1999-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-05-13 2002-11-12 2003-05-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag