Patent US1993914A successfully refreshed from Google Patents.
EP0166445A2
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Reinforced zirconia-base sintered body, process for producing the same, and plate-like zirconia-base electrolyte function element
Assignee: Niterra Co Ltd
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Filing: 1985-06-27
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Granted: —
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Expires: 2005-06-27
Abstract
Abstract A partially or wholly stabilized zirconia-base reinforced sintered body or a zirconia-base solid electrolyte function element includes a plate-like sintered substrate (1) of a partially or wholly stabilized zirconia-base sintered mass provided with on each side thereof an alumina-base protective layer (2) having a given thickness. The thickness ratio of each alumina-base protective layer (2) to said plate-like sintered substrate (1) having a thickness of 0.1 to 5mm is 1/100 to 25/100.
Inventors
- 👤 Takao Kojima
- 👤 Hiroyuki Ishiguro
- 👤 Yoshiki Kawachi
- 👤 Tetsusyo Yamada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 05:28
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/407; G01N27/4073; B; B32; B32B; B32B18/00; C; C04; C04B; C04B35/00; C04B35/01; C04B35/48; C04B35/486; C04B35/622; C04B35/64; C04B35/645; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5025; C04B41/5031; C04B41/80; C04B41/81; C04B41/85; C04B41/87; H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/345; C04B2237/348; C04B2237/50; C04B2237/68; C04B2237/70; C04B2237/704; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
42 words
Reinforced zirconia-base sintered body being partially or wholly stabilized characterized in that a plate-like sintered substrate (1) of a partially or wholly stabilized zirconia-base sintered mass is provided with on each side thereof an alumina-base protective layer (2) having a given thickness.
Claim 2
Dependent Claim
42 words
Reinforced zirconia-base sintered body being partially or wholly stabilized characterized in that a plate-like sintered substrate (1) of a partially or wholly stabilized zirconia-base sintered mass is provided with on each side thereof an alumina-base protective layer (2) having a given thickness.
Claim 3
Dependent Claim
30 words
A reinforced sintered body as defined in Claim 1, in which the thickness ratio of each alumina-base protective layer (2) to said plate-like sintered substrate (1) is 1/100 to 25/100.
Claim 4
Dependent Claim
25 words
A reinforced sintered body as defined in Claim 1 or 2, in which the sintered substrate (1) has a thickness of 0.1 to 5 mm.
Claim 5
Dependent Claim
23 words
A reinforced sintered body as defined in Claim 3, in which the sintered substrate (1) has a thickness of 0.1 to 2 mm.
Claim 6
Dependent Claim
54 words
A process for the production of a reinforced zirconia-base sintered body being partially or wholly stabilized, comprising: . providing a green alumina protective layer on each side of a plate-like zirconia-base substrate, and sintering the resultant mass so as to simultaneously sinter the substrate and the protective layers to form an integral sintered body.
Claim 7
Dependent Claim
54 words
A process for the production of a reinforced zirconia-base sintered body being partially or wholly stabilized, comprising: . providing a green alumina protective layer on each side of a plate-like zirconia-base substrate, and sintering the resultant mass so as to simultaneously sinter the substrate and the protective layers to form an integral sintered body.
Claim 8
Dependent Claim
131 words
A plate-like zirconia-base solid electrolyte function element comprising a plate-like zirconia-base solid electrolyte substrate (1), the substrate including at its free and an electrochemically operable portion (5) provided with an electrode (3) on each side of the substrate (1), another portion (7) to be retained, and an arm portion (6) defined by an intermediate portion between the free end and said another portion (7), characterized in that a reinforcing coating layer (2) is formed on each side of said zirconia-base solid electrolyte substrate (1), the reinforcing coating layers (2) extending at least from said arm portion (6) to said another portion (7) to be retained, said coating layers (2) being formed of an electrically insulating ceramic material having a shrinkage modulus smaller than that of said zirconia-base solid electrolyte substrate (1).
Claim 9
Dependent Claim
131 words
A plate-like zirconia-base solid electrolyte function element comprising a plate-like zirconia-base solid electrolyte substrate (1), the substrate including at its free and an electrochemically operable portion (5) provided with an electrode (3) on each side of the substrate (1), another portion (7) to be retained, and an arm portion (6) defined by an intermediate portion between the free end and said another portion (7), characterized in that a reinforcing coating layer (2) is formed on each side of said zirconia-base solid electrolyte substrate (1), the reinforcing coating layers (2) extending at least from said arm portion (6) to said another portion (7) to be retained, said coating layers (2) being formed of an electrically insulating ceramic material having a shrinkage modulus smaller than that of said zirconia-base solid electrolyte substrate (1).
Claim 10
Dependent Claim
15 words
A function element as defined in Claim 6, in which said ceramic material is alpha-alumina.
Claim 11
Dependent Claim
25 words
A function element as defined in Claims 5 or 6, in which said zirconia-base solid electrolyte is wholly or partially stabilized primarily by yttrium oxide.
Claim 12
Dependent Claim
37 words
A function element as defined in any of Claims 6 to 8, in which the ratio of the shrinkage modulus between said zirconia-base electrolyte substrate and the ceramic material forming the coating layers is 1.01 to 1.08.
Claim 13
Dependent Claim
33 words
A function element as defined in any of Claims 6 to 9, in which the thickness ratio of each of said coating layers and said zirconia solid electrolyte plate is 1/100 to 25/100.
Claim 14
Dependent Claim
27 words
A function element as defined in any of Claims 6 to 10, in which said zirconia-base solid electrolyte substrate has a thickness of 0.1 to 5 mm.
Claim 15
Dependent Claim
23 words
A function element as defined in Claim 11, in which said zirconia-base solid electrolyte substrate has a thickness of 0.1 to 2 mm.
Claim 16
Dependent Claim
29 words
A function element as defined in any of Claims 6 to 11, in which said lead portion (4) is formed on the surface of said insulating ceramic material (2).
References Cited (Backward Citations)
No citation records indexed.
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