US2545606A - Method of coating with plutonium acetylacetonate and coated product - Google Patents
Method of coating with plutonium acetylacetonate and coated product Download PDFInfo
- Publication number
- US2545606A US2545606A US639706A US63970646A US2545606A US 2545606 A US2545606 A US 2545606A US 639706 A US639706 A US 639706A US 63970646 A US63970646 A US 63970646A US 2545606 A US2545606 A US 2545606A
- Authority
- US
- United States
- Prior art keywords
- plutonium
- acetylacetonate
- coating
- article
- metal
- 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.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/12—Organic material
Definitions
- This invention relates to the deposition of thin films of plutonium acetylacetonate on metal and other bases and to an article coated with such a film.
- the plutonium acetylacetonate is volatilized by heating it to an elevated temperature, preferably a temperature of from 160 C. to 175 C. in vacuo, preferably at or below about 10' millimeters of mercury in a suitable apparatus in which the piece of metal or article to be coated is accommodated, the material or article being in chilled condition usually below 0 C.
- an elevated temperature preferably a temperature of from 160 C. to 175 C. in vacuo, preferably at or below about 10' millimeters of mercury in a suitable apparatus in which the piece of metal or article to be coated is accommodated, the material or article being in chilled condition usually below 0 C.
- about micrograms of plutonium acetylacetonate was heated to from 168 C. to 170 C. for 40 minutes in an apparatus in which a vacuum of about 10 millimeters of mercury was maintained.
- a piece of metal foil having approximately 2 cubic centimeters surface area was accommodated in the apparatus and cooled by means of a dry ice-trichlorethylene bath during the forty minute period.
- a film of plutonium acetylacetonate containing from 2 per cent to 8 per cent of the amount of plutonium used was condensed on the metal foil.
- Such coated foils are useful in ion chambers and similar devices.
- articles of the desired material and configuration can be coated with such a film.
- the method of coating with plutonium acetylacetonate a metal article nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate by the application of heat and subatmospheric pressure and condensing the vapor on said metal article.
- the method of coating with plutonium acetylacetonate a metal article nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate by heating it from about C. to C. while maintaining it in a vacuum of about 10 millimeters of mercury, and condensing it, while in said vacuum, on said metal article.
- the method of coating with plutonium ace tylacetonate a metal foil nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate by heating it from about 160 C. to 175 C. while maintaining it in a vacuum of about 10- millimeters of mercury, and condensing it, while in said vacuum, on said metal foil.
- An article of manufacture comprising a metal base nonreactive with plutonium acetylacetonate having thereon a coating of plutonium acetylacetonate.
- An article of manufacture comprising a metal foil nonreactive with plutonium acetylacetonate said metal foil having thereon a coating of plutonium acetylacetonate.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Chemical Vapour Deposition (AREA)
Description
Patented Mar. 20, 1951 UNITED STATES PATENT OFFICE METHOD OF COATING WITH PLUTONI'UM ACETYLACETONATE AND COATED PROD- UCT No Drawing. Application January 7, 1946, Serial No. 639,706
6 Claims.
This invention relates to the deposition of thin films of plutonium acetylacetonate on metal and other bases and to an article coated with such a film.
Plutonium acetylacetonate and the manner in which it is produced are disclosed in the copending joint application of Jonathan S. Dixon, Joseph J. Katz, and Edwin F. Orlemann, Serial No. 565,999, filed November 30, 1944, entitled Chemical Process and Composition.
In order to coat material, such as metal or preconfigurated articles of manufacture, the plutonium acetylacetonate is volatilized by heating it to an elevated temperature, preferably a temperature of from 160 C. to 175 C. in vacuo, preferably at or below about 10' millimeters of mercury in a suitable apparatus in which the piece of metal or article to be coated is accommodated, the material or article being in chilled condition usually below 0 C. As a result, the plutonium acetylacetonate is condensed on the surface of the material or article and forms a thin adherent film thereon.
As one example, about micrograms of plutonium acetylacetonate was heated to from 168 C. to 170 C. for 40 minutes in an apparatus in which a vacuum of about 10 millimeters of mercury was maintained. A piece of metal foil having approximately 2 cubic centimeters surface area was accommodated in the apparatus and cooled by means of a dry ice-trichlorethylene bath during the forty minute period. As a result, a film of plutonium acetylacetonate containing from 2 per cent to 8 per cent of the amount of plutonium used was condensed on the metal foil.
Such coated foils are useful in ion chambers and similar devices.
By the method herein described, articles of the desired material and configuration can be coated with such a film.
Having thus described the invention, what is claimed is:
1. The method of coating with plutonium acetylacetonate a metal article nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate by the application of heat and subatmospheric pressure and condensing the vapor on said metal article.
2. The method of coating with plutonium acetylacetonate a metal article nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate by heating it from about C. to C. while maintaining it in a vacuum of about 10 millimeters of mercury, and condensing it, while in said vacuum, on said metal article.
3. The method of coating with plutonium ace tylacetonate a metal foil nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate by heating it from about 160 C. to 175 C. while maintaining it in a vacuum of about 10- millimeters of mercury, and condensing it, while in said vacuum, on said metal foil.
4. The method of coating with plutonium acetylacetonate a metal article nonreactive with said plutonium acetylacetonate which comprises volatilizing the plutonium acetylacetonate in a high degree of subatmospheric pressure by the application of heat and condensing the vapor on the article.
5. An article of manufacture comprising a metal base nonreactive with plutonium acetylacetonate having thereon a coating of plutonium acetylacetonate.
6. An article of manufacture comprising a metal foil nonreactive with plutonium acetylacetonate said metal foil having thereon a coating of plutonium acetylacetonate.
BURRIS B. CUNNINGHAM. CLIFFORD SMITH. JONATHAN S. DIXON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,074,281 Sommer Mar. 16, 1937 2,239,770 Becker et a1. Apr. 29, 1941
Claims (1)
1. THE METHOD OF COATING WITH PLUTONIUM ACETYLACETONATE A METAL ARTICLE NONREACTIVE WITH SAID PLUTONIUM ACETYLACETONATE WHICH COMPRISES VALATILIZING THE PLUTONIUM ACETYLACEETONATE BY THE APPLICATION OF HEAT AND SUBATMOSPHERIC PRESSURE AND CONDENSING THE VAPOR ON SAID METAL ARTICLE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639706A US2545606A (en) | 1946-01-07 | 1946-01-07 | Method of coating with plutonium acetylacetonate and coated product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639706A US2545606A (en) | 1946-01-07 | 1946-01-07 | Method of coating with plutonium acetylacetonate and coated product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2545606A true US2545606A (en) | 1951-03-20 |
Family
ID=24565219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US639706A Expired - Lifetime US2545606A (en) | 1946-01-07 | 1946-01-07 | Method of coating with plutonium acetylacetonate and coated product |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2545606A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805965A (en) * | 1952-09-25 | 1957-09-10 | Sprague Electric Co | Method for producing deposits of metal compounds on metal |
| US2930909A (en) * | 1954-11-23 | 1960-03-29 | Leesona Corp | Radioactive battery with solid dielectric spacers and method of manufacture |
| US3264473A (en) * | 1963-06-26 | 1966-08-02 | Marquardt Corp | Radiation sterilization device with uniformly distributed beta emitters |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2074281A (en) * | 1933-07-13 | 1937-03-16 | Sommer Ludwig August | Method and apparatus for the production of metallic coatings on electrically nonconducting substances by the thermal vaporization of metals in vacuo |
| US2239770A (en) * | 1937-10-07 | 1941-04-29 | Electrically conductive device and the manufacture thereof |
-
1946
- 1946-01-07 US US639706A patent/US2545606A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2074281A (en) * | 1933-07-13 | 1937-03-16 | Sommer Ludwig August | Method and apparatus for the production of metallic coatings on electrically nonconducting substances by the thermal vaporization of metals in vacuo |
| US2239770A (en) * | 1937-10-07 | 1941-04-29 | Electrically conductive device and the manufacture thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805965A (en) * | 1952-09-25 | 1957-09-10 | Sprague Electric Co | Method for producing deposits of metal compounds on metal |
| US2930909A (en) * | 1954-11-23 | 1960-03-29 | Leesona Corp | Radioactive battery with solid dielectric spacers and method of manufacture |
| US3264473A (en) * | 1963-06-26 | 1966-08-02 | Marquardt Corp | Radiation sterilization device with uniformly distributed beta emitters |
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