US5139191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of connecting ceramic material to another material
Assignee: Velterop F M BV
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Filing: 1991-07-19
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Granted: 1992-08-18
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Expires: 2011-07-19
Abstract
Abstract The present invention relates to a method of connecting a ceramic material to another material. According to the present method as ceramic material porous material is used that prior to making a connection it is gradually compacted from the contact surface with the greatest density at the contact surface, wherein on the contact surface of the porous material a mixture of titanium hydride (TiH 2 ) and quartz flour (SiO 2 ) is applied. Then the so treated porous ceramic material is heated to 1200°-1800° C. during 1-40 hours. Finally the so compacted porous ceramic material in a manner known per se is connected to the other material. Preferably the treated porous ceramic material is heated to 1300°-1500° C. during 10-20 hours. Advantageously the weight proportion of TiH 2 and SiO 2 in the mixture is 95:5 to 5:95 and preferably 35:65 to 65:35.
Inventors
- 👤 Franciscus M. Velterop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:46
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C04B37/003; C04B37/005; C04B37/006; C04B37/026; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2235/70; C04B2235/74; C04B2235/77; C04B2235/775; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/062; C04B2237/064; C04B2237/09; C04B2237/12; C04B2237/122; C04B2237/125; C04B2237/126; C04B2237/128; C04B2237/16; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/345; C04B2237/348; C04B2237/36; C04B2237/365; C04B2237/40; C04B2237/402; C04B2237/405; C04B2237/406; C04B2237/407; C04B2237/50; C04B2237/58; C04B2237/60; C04B2237/62; C04B2237/72; C04B2237/76; C04B2237/765; C04B2237/80; C04B2237/82; C04B2237/84
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A process for connecting a porous ceramic first material to a second material characterized in that the surface of the first material is densified by being treated through the application thereto of a mixture of titanium hydride (TiH 2 ) and quartz flour (SiO 2 ) and then heated to from about 1200° to 1800° C. for from about 1 to 40 hours thereby increasing the density of the surface area and the area adjacent thereto, the greatest increase occurring at said surface, and thereafter connecting said first and second materials.
Claim 2
Dependent Claim
91 words
A process for connecting a porous ceramic first material to a second material characterized in that the surface of the first material is densified by being treated through the application thereto of a mixture of titanium hydride (TiH 2 ) and quartz flour (SiO 2 ) and then heated to from about 1200° to 1800° C. for from about 1 to 40 hours thereby increasing the density of the surface area and the area adjacent thereto, the greatest increase occurring at said surface, and thereafter connecting said first and second materials.
Claim 3
Dependent Claim
20 words
Method of claim 1, characterized in that the treated porous ceramic material is heated to 1300°-1500° C. for 10-20 hours.
Claim 4
Dependent Claim
23 words
Method of claim 1, characterized in that the weight proportion of TiH 2 and SiO 2 in the mixture is 95:5 to 5:95.
Claim 5
Dependent Claim
19 words
Method of claim 1, characterized in that the weight proportion TiH 2 and SiO 2 is 35:65 to 65:35.
Claim 6
Dependent Claim
22 words
Method of claims 2, characterized in that to the mixture of TiH 2 and SiO 2 a suitable soldering material is added.
Claim 7
Dependent Claim
14 words
Method of claim 1, characterized in that as soldering material Au-Cu-Ni alloy is used.
Claim 8
Dependent Claim
14 words
Method of claim 1, characterized in that as soldering material Ag-Cu alloy is used.
Claim 9
Dependent Claim
26 words
Method of claim 1, characterized in that to the mixture of titanium hydride and quartz flour, optionally including a soldering material, a binding agent is added.
Claim 10
Dependent Claim
13 words
Method of claim 1, characterized in that as binding agent water is used.
Claim 11
Dependent Claim
21 words
Method of claim 1, characterized in that the second material to which the densified ceramic material is connected, is stainless steel.
Claim 12
Dependent Claim
13 words
Method of claim 8 in which said mixture also contains a soldering material.
Claim 13
Dependent Claim
110 words
A process for connecting a porous ceramic first material to a second material characterized in that the surface of the first material is densified by being treated through the application thereto of a mixture of titanium hydride (TiH 2 ) and quartz flour (SiO 2 ) and then heated to from about 1200° to 1800° C. from about 1 to 40 hours, thereby increasing the density of the surface area and the area adjacent thereto, the greatest increase occurring at said surface, and thereafter connecting said first and second materials, said process being further characterized in that the weight portion of TiH 2 and SiO 2 is 35-65 to 65-35.
Claim 14
Dependent Claim
110 words
A process for connecting a porous ceramic first material to a second material characterized in that the surface of the first material is densified by being treated through the application thereto of a mixture of titanium hydride (TiH 2 ) and quartz flour (SiO 2 ) and then heated to from about 1200° to 1800° C. from about 1 to 40 hours, thereby increasing the density of the surface area and the area adjacent thereto, the greatest increase occurring at said surface, and thereafter connecting said first and second materials, said process being further characterized in that the weight portion of TiH 2 and SiO 2 is 35-65 to 65-35.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |