US4067792A
Expired / Lapsed
US
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Solid metal oxide electrolyte and method of making
Assignee: Individual
•
Filing: 1974-07-31
•
Granted: 1978-01-10
•
Expires: 1994-07-31
Abstract
Abstract Solid electrolyte on the basis of aluminum oxide with the addition of titanium dioxide which further comprises zirconium dioxide.
Inventors
- 👤 Novella Vladimirovna Semkina
- 👤 Galina Alexandrovna Mamaeva
- 👤 Evgeny Alexeevich Nechaev
- 👤 Viktor Petrovich Vinogradov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:13
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/411; G01N27/4112; C; C04; C04B; C04B35/00; C04B35/01; C04B35/10; C04B35/111; H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; H01M8/124; H01M8/1246; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
A method for producing a solid electrolyte suitable for use in determining oxidation of molten metals and consisting essentially of aluminum oxide, titanium dioxide and zirconium oxide comprising the steps of mixing 85-95 weight % aluminum oxide, 1-5 weight % of titanium dioxide and 4-10 weight % of zirconium dioxide, the percentages of said oxides adding up to 100%; adding a plasticizer to said mixture; molding an article from the plasticized mixture; drying the molded article; and roasting the dried article.
Claim 2
Independent Claim
81 words
A method for producing a solid electrolyte suitable for use in determining oxidation of molten metals and consisting essentially of aluminum oxide, titanium dioxide and zirconium oxide comprising the steps of mixing 85-95 weight % aluminum oxide, 1-5 weight % of titanium dioxide and 4-10 weight % of zirconium dioxide, the percentages of said oxides adding up to 100%; adding a plasticizer to said mixture; molding an article from the plasticized mixture; drying the molded article; and roasting the dried article.
Claim 3
Dependent Claim
15 words
A method according to claim 1 wherein said oxides are mixed in finely divided form.
Claim 4
Dependent Claim
20 words
A method according to claim 1 wherein the plasticizer is selected from the group consisting of paraffin and starch paste.
Claim 5
Dependent Claim
16 words
A method according to claim 1 wherein the roasting step is carried out at 1600°-1650° C.
Claim 6
Dependent Claim
40 words
The product obtained by the method of claim 1 having an open porosity of 0-1%, an apparent density of 3.70-4.1 g/cm 3 , a heat resistance of 8-15 cycles from 1300 to 20° C. and an ion conductance of 93-98%.
References Cited (Backward Citations)
US3687735A
Cited
US3652427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |