FR2097814A5 - Electret - comprising metal alloy coating for increased potential and - Google Patents
Electret - comprising metal alloy coating for increased potential andInfo
- Publication number
- FR2097814A5 FR2097814A5 FR7119620A FR7119620A FR2097814A5 FR 2097814 A5 FR2097814 A5 FR 2097814A5 FR 7119620 A FR7119620 A FR 7119620A FR 7119620 A FR7119620 A FR 7119620A FR 2097814 A5 FR2097814 A5 FR 2097814A5
- Authority
- FR
- France
- Prior art keywords
- electret
- metal alloy
- alloy coating
- increased potential
- electretic
- 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
Links
- 239000011248 coating agent Substances 0.000 title abstract 2
- 238000000576 coating method Methods 0.000 title abstract 2
- 229910001092 metal group alloy Inorganic materials 0.000 title 1
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 1
- 239000011034 rock crystal Substances 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Paints Or Removers (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Electret consisting of a material having electretic properties (polymers, waxes, higher alcohols and esters, rock-crystal, Rochelle salt, ceramics, and ferrites), is provided, at least on one side, with a coating consisting of an alloy contg. at least one element of Fe, Co and Ni, and at least two elements of Fe, Co, Ni, Mn, si, Cu, S, V, Mo, C, Al and Zn. The assembly is polarised as a whole. The electretic potential is increased by 20-500%, and the service life is extended.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5984670A JPS5024440B1 (en) | 1970-07-10 | 1970-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2097814A5 true FR2097814A5 (en) | 1972-03-03 |
Family
ID=13124966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7119620A Expired FR2097814A5 (en) | 1970-07-10 | 1971-05-28 | Electret - comprising metal alloy coating for increased potential and |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5024440B1 (en) |
| DE (1) | DE2134571A1 (en) |
| FR (1) | FR2097814A5 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2605138A1 (en) * | 1986-10-08 | 1988-04-15 | Atesys Sa | Method for polarising a dielectric material |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650408B2 (en) * | 1973-07-05 | 1981-11-28 | ||
| JPS5718641B2 (en) * | 1973-07-17 | 1982-04-17 | ||
| JPS5130997A (en) * | 1974-09-11 | 1976-03-16 | Kureha Chemical Ind Co Ltd | Kobunshifuirumu no renzokuseikyokuhoho |
| DE3333083C2 (en) * | 1983-09-14 | 1987-04-23 | Metev Gesellschaft für Entwicklung und Verwertung med. Bedarfs GmbH & Co KG, 4840 Rheda-Wiedenbrück | Method for producing an electrically permanently charged layer material for therapeutic treatment |
| JPH0548894U (en) * | 1991-12-10 | 1993-06-29 | 北川工業株式会社 | Clothesline |
-
1970
- 1970-07-10 JP JP5984670A patent/JPS5024440B1/ja active Pending
-
1971
- 1971-05-28 FR FR7119620A patent/FR2097814A5/en not_active Expired
- 1971-07-06 DE DE19712134571 patent/DE2134571A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2605138A1 (en) * | 1986-10-08 | 1988-04-15 | Atesys Sa | Method for polarising a dielectric material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2134571A1 (en) | 1972-01-13 |
| JPS5024440B1 (en) | 1975-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |