US4547435A
Expired / Lapsed
US
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Method for preparing fiber-reinforced metal composite material
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1984-04-17
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Granted: 1985-10-15
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Expires: 2004-04-17
Abstract
Abstract A fiber-reinforced metal composite material comprising a metal or alloy as the matrix and an inorganic fiber as the reinforcing material, characterized in that at least one element selected from the group consisting of elements belonging to the fourth or higher periods of the group (IA) in the periodic table, elements belonging to the fifth or higher periods of the group (IIA) in the periodic table, and Bi and In in the form of simple substance or organic or inorganic compound is incorporated into either one or both of the matrix metal or the reinforcing material in an amount of 0.0005 to 10% by weight (calculated in terms of the element) so as to enhance the mechanical strength of the composite material.
Inventors
- 👤 Kohji Yamatsuta
- 👤 Ken-ichi Nishio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:38
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/14; C; C22; C22C; C22C49/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
73 words
A method for preparing a fiber-reinforced metal composite material consisting essentially of: adding at least one element selected from the group consisting of K, Cs, Rb, Fr, Sr, Ba, Ra and In in an amount of 0.0005 to 10% by weight into molten metal or molten alloy; and combining the thus prepared matrix containing at least one of said elements with an inorganic fiber reinforcing material to form the fiber-reinforced metal composite material.
Claim 2
Independent Claim
73 words
A method for preparing a fiber-reinforced metal composite material consisting essentially of: adding at least one element selected from the group consisting of K, Cs, Rb, Fr, Sr, Ba, Ra and In in an amount of 0.0005 to 10% by weight into molten metal or molten alloy; and combining the thus prepared matrix containing at least one of said elements with an inorganic fiber reinforcing material to form the fiber-reinforced metal composite material.
Claim 3
Dependent Claim
18 words
The method according to claim 1, wherein said element is said matrix into said matrix in elemental form.
Claim 4
Dependent Claim
24 words
The method according to claim 1, wherein said element is said matrix into said matrix in the form of an inorganic or organic compound.
Claim 5
Dependent Claim
36 words
The method according to claim 1, wherein the inorganic fiber is a member selected from the group consisting of a carbon fiber, a silicon fiber, a silicon carbide fiber, a boron fiber or an alumina fiber.
Claim 6
Dependent Claim
28 words
The method according to claim 1, wherein the metal or alloy is a member selected from the group consisting of aluminum, magnesium, copper, nickel, titanium or alloys thereof.
Claim 7
Independent Claim
69 words
A method for preparing a fiber-reinforced metal composite material consisting essentially of: coating the surface of an inorganic fiber with at least one element selected from the group consisting of K, Cs, Rb, Fr, Sr, Ba, Ra and In in an amount of 0.0005 to 10% by weight; and combining the thus treated inorganic fiber with a molten metal or alloy matrix to form the fiber-reinforced metal composite material.
Claim 8
Independent Claim
69 words
A method for preparing a fiber-reinforced metal composite material consisting essentially of: coating the surface of an inorganic fiber with at least one element selected from the group consisting of K, Cs, Rb, Fr, Sr, Ba, Ra and In in an amount of 0.0005 to 10% by weight; and combining the thus treated inorganic fiber with a molten metal or alloy matrix to form the fiber-reinforced metal composite material.
Claim 9
Dependent Claim
26 words
The method according to claim 6, wherein said element is in the form of an organic or inorganic compound to the surface of said inorganic fiber.
Claim 10
Dependent Claim
32 words
The method according to claim 6, wherein said element is coated on the surface of said inorganic fiber to form a layer which has a thickness of not less than 20 Å.
Claim 11
Dependent Claim
36 words
The method according to claim 6, wherein said inorganic fiber is a member selected from the group consisting of a carbon fiber, a silica fiber, a silicon carbide fiber, a boron fiber or an alumina fiber.
Claim 12
Dependent Claim
14 words
The method according to claim 6, wherein said element is in the elemental form.
Claim 13
Dependent Claim
39 words
The method according to claim 3, wherein said element is in the form of a member selected from the group consisting of halides, hydrides, oxides, hydroxides, sulfonates, nitrates, carbonates, chlorates, carbides, nitrides, phosphates, sulfides, phosphides, alkyl compounds and alcoholates.
Claim 14
Dependent Claim
39 words
The method according to claim 7, wherein said element is in the form of a member selected from the group consisting of halides, hydrides, oxides, hydroxides, sulfonates, nitrates, carbonates, chlorates, carbides, nitrides, phosphates, sulfides, phosphides, alkyl compounds and alcoholates.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
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