WO1999031958A8 - Improved method for making a metal matrix composite body by a spontaneous infiltration process - Google Patents
Improved method for making a metal matrix composite body by a spontaneous infiltration processInfo
- Publication number
- WO1999031958A8 WO1999031958A8 PCT/US1998/026949 US9826949W WO9931958A8 WO 1999031958 A8 WO1999031958 A8 WO 1999031958A8 US 9826949 W US9826949 W US 9826949W WO 9931958 A8 WO9931958 A8 WO 9931958A8
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- preform
- infiltration enhancer
- vapor
- permeable mass
- infiltration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
- C22C1/1015—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1057—Reactive infiltration
- C22C1/1063—Gas reaction, e.g. lanxide
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Improvements in processing metal matrix composite materials by infiltration are disclosed. Specifically, an infiltration enhancer precursor is provided to a permeable mass or preform in vapor form, and further, the permeable mass or preform assists in confining the vapor. At least at some point during processing, an infiltrating atmosphere is communicated with the permeable mass or preform. The atmosphere is a particular type of infiltrating atmosphere which is capable of chemically converting the infiltration enhancer precursor to infiltration enhancer. In one embodiment, the vapor phase infiltration enhancer precursor is provided in vacuo or in an inert atmosphere initially, the reactive infiltrating atmosphere being provided only when a desired concentration of infiltration enhancer precursor vapor in the permeable mass or preform has been achieved. In another embodiment, a reactive infiltrating atmosphere is provided concurrently with vapor-phase infiltration enhancer precursor under conditions whereby infiltration enhancer is deposited as a coating layer on one or more surfaces of the permeable mass or preform. A molten matrix metal is able to readily wet and infiltrate such a layer. This infiltrated layer permits more rapid infiltration of the bulk of the preform. The infiltrated layer also provides the formed MMC body with an MMC surface whose properties may be similar to or different from those of the underlying MMC body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6832297P | 1997-12-19 | 1997-12-19 | |
| US60/068,322 | 1997-12-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1999031958A2 WO1999031958A2 (en) | 1999-07-01 |
| WO1999031958A8 true WO1999031958A8 (en) | 1999-10-07 |
| WO1999031958A9 WO1999031958A9 (en) | 1999-11-11 |
Family
ID=22081817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1998/026949 Ceased WO1999031958A2 (en) | 1997-12-19 | 1998-12-18 | Improved method for making a metal matrix composite body by a spontaneous infiltration process |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1999031958A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6635357B2 (en) | 2002-02-28 | 2003-10-21 | Vladimir S. Moxson | Bulletproof lightweight metal matrix macrocomposites with controlled structure and manufacture the same |
| US10364491B2 (en) | 2016-11-02 | 2019-07-30 | Georgia Tech Research Corporation | Process to chemically modify polymeric materials by static, low-pressure infiltration of reactive gaseous molecules |
-
1998
- 1998-12-18 WO PCT/US1998/026949 patent/WO1999031958A2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999031958A9 (en) | 1999-11-11 |
| WO1999031958A2 (en) | 1999-07-01 |
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| CFP | Corrected version of a pamphlet front page | ||
| CR1 | Correction of entry in section i |
Free format text: PAT. BUL. 26/99 UNDER (63) REPLACE THE EXISTING TEXT BY "US 60/068322 (CIP) FILED ON 19.12.97" |
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| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| NENP | Non-entry into the national phase |
Ref country code: KR |
|
| 122 | Ep: pct application non-entry in european phase |