US4264029A
Expired / Lapsed
US
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Compound material and method for producing same
Assignee: Deutsches Zentrum für Luft- und Raumfahrt eV
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Filing: 1979-08-14
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Granted: 1981-04-28
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Expires: 1999-08-14
Abstract
Abstract A compound material for temperatures up to about 1250 DEG C. or 1350 DEG C., respectively, and a method for producing the same, are disclosed, including a pair of joined layers one of which is a corrosion- and high-temperature-resistant alloy, the other layer consisting of a refractory material with high strength at high temperatures. The layer having the weaker mechanical strength at high temperatures is thinner than the other layer, the ratio of layer thickness preferably being between 1:5 and 1:2. A further alloy layer may be provided on the opposite side of the refractory layer, thereby to define a three-layer laminate. A thin layer of diffusion barrier material, such as platinum or palladium, may be provided between the refractory and alloy layers. The method for producing the laminate includes the step of detonating an explosive layer to exposively clad the alloy layer on to the refractory layer.
Inventors
- 👤 Rudolf Henne
- 👤 Rolf Prummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; B32; B32B; B32B15/00; B32B15/01
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
147 words
A method for producing a compound material for operating temperatures of from about 1250° to about 1350° C., which comprises the steps of (a) arranging adjacent generally parallel with and spaced from a layer of refractory material a layer of a high-temperature-resistant super alloy selected from the group consisting of nickel, iron and chromium base alloys; and (b) detonating a layer of an explosive charge adjacent the alloy layer to explosively plate the same upon the layer of refractory material, thereby to produce a joined laminate including a base plate formed of refractory material and a parallel coat plate formed of a high-temperature-resistant base alloy, the layer of explosive charge being so dimensioned and arranged as to produce a collision velocity (V K ) of alloy layer of from about 2700 to about 3500 m/sec. and a collision angle (β) of from about 15° to about 25°.
Claim 2
Independent Claim
147 words
A method for producing a compound material for operating temperatures of from about 1250° to about 1350° C., which comprises the steps of (a) arranging adjacent generally parallel with and spaced from a layer of refractory material a layer of a high-temperature-resistant super alloy selected from the group consisting of nickel, iron and chromium base alloys; and (b) detonating a layer of an explosive charge adjacent the alloy layer to explosively plate the same upon the layer of refractory material, thereby to produce a joined laminate including a base plate formed of refractory material and a parallel coat plate formed of a high-temperature-resistant base alloy, the layer of explosive charge being so dimensioned and arranged as to produce a collision velocity (V K ) of alloy layer of from about 2700 to about 3500 m/sec. and a collision angle (β) of from about 15° to about 25°.
Claim 3
Dependent Claim
18 words
The method defined in claim 1, wherein the material of the refractory layer is in deep drawable condition.
Claim 4
Dependent Claim
36 words
The method defined in claim 1, and further including the preliminary step, prior to the detonating step, of reducing the hardness of the refractory layer, the alloy layers, for example or all of them, by annealing.
Claim 5
Dependent Claim
31 words
The method defined in claim 1, and further including the preliminary step, prior to the detonating step, of removing oxide layers from the surface of the layers adjacent to each other.
Claim 6
Dependent Claim
30 words
The method defined in claim 1, wherein the thickness of the layer of material which is mechanically weaker at the operating temperature is less than that of the other layer.
Claim 7
Dependent Claim
22 words
The method defined in claim 1, and further including the final step, after the explosion plating step, of rolling the resultant laminate.
Claim 8
Dependent Claim
31 words
The method defined in claim 1, and further including the intermediate step, prior to the explosion plating step, of arranging a thin metal foil layer between the alloy and refractory layers.
Claim 9
Dependent Claim
25 words
The method defined in claim 1, and further including the preliminary step, prior to the explosion plating step, of heating the layer of refractory material.
Claim 10
Dependent Claim
27 words
The method as defined in claim 8, wherein the layer of refractory material is heated to a temperature of from about 300° C. to about 500° C.
Claim 11
Dependent Claim
19 words
The method as defined in claim 9, wherein the layer of refractory material is heated to about 400° C.
Claim 12
Dependent Claim
19 words
The method as defined in claim 8, wherein the explosion plating step is conducted in a carbon dioxide atmosphere.
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |