GB1002793A - Ruthenium and ruthenium alloy metal-glass resistance materials and resistance elements constructed therefrom - Google Patents
Ruthenium and ruthenium alloy metal-glass resistance materials and resistance elements constructed therefromInfo
- Publication number
- GB1002793A GB1002793A GB954464A GB954464A GB1002793A GB 1002793 A GB1002793 A GB 1002793A GB 954464 A GB954464 A GB 954464A GB 954464 A GB954464 A GB 954464A GB 1002793 A GB1002793 A GB 1002793A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- ruthenium
- resistance
- metal
- base
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
- H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
- H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
- H01C17/06526—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component composed of metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/06—Surface treatment of glass, not in the form of fibres or filaments, by coating with metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/25—Metals
- C03C2217/251—Al, Cu, Mg or noble metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/17—Deposition methods from a solid phase
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Glass Compositions (AREA)
- Non-Adjustable Resistors (AREA)
Abstract
A metal-glass resistance material is fired on to an insulating base to form a resistance layer having a low temperature coefficient of resistivity, the material comprising a finely divided mixture of 60-99% by weight of glass, the balance being ruthenium or ruthenium alloyed with gold, palladium or platinum, or combinations thereof. For elements using only glass and ruthenium, the latter forms 1-10% b/w. The minimum ruthenium content when alloyed is 2% b/w. of the alloy. The resistance material is prepared by mixing resinates of the metals with very small glass particles to wet them, heating to 700 DEG F. to remove volatiles and organic materials, and to decompose the metal compounds, grinding the resulting dry material, and calcining at 850 DEG F. Further grinding results in a fine powder of small glass particles each coated with an extremely thin layer of metal. The powder is mixed with a liquid carrier, applied to the base and fired. The base may be steatite, alumina, fastenite or a zircon porcelain. Examples of the glasses used are (figs. in %): ....(1).(2).(3) .PbO...65.68.58.10.75.15 .ZnO...5.41.5.41.5.40 .MgO...-.0.39.- .B2O3...10.00.11.30.9.04 .SiO2...16.51.24.50.13.41 .ZrO2...2.40.1.20.- The glass may be made by thoroughly dry mixing a batch of raw materials, melting in a ceramic crucible to give a clear fluid glass, and pouring the glass into cold water. The resulting shattered glass is dried and ground to a fine powder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31906763A | 1963-10-25 | 1963-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1002793A true GB1002793A (en) | 1965-08-25 |
Family
ID=23240722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB954464A Expired GB1002793A (en) | 1963-10-25 | 1964-03-06 | Ruthenium and ruthenium alloy metal-glass resistance materials and resistance elements constructed therefrom |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1465320B2 (en) |
| GB (1) | GB1002793A (en) |
| NL (1) | NL6407708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3326645A (en) * | 1965-09-22 | 1967-06-20 | Beckman Instruments Inc | Cermet resistance element and material |
| JPS5067486A (en) * | 1973-10-20 | 1975-06-06 |
-
1964
- 1964-03-06 GB GB954464A patent/GB1002793A/en not_active Expired
- 1964-07-07 NL NL6407708A patent/NL6407708A/xx unknown
- 1964-10-09 DE DE19641465320 patent/DE1465320B2/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3326645A (en) * | 1965-09-22 | 1967-06-20 | Beckman Instruments Inc | Cermet resistance element and material |
| JPS5067486A (en) * | 1973-10-20 | 1975-06-06 | ||
| JPS5532009B2 (en) * | 1973-10-20 | 1980-08-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6407708A (en) | 1965-04-26 |
| DE1465320A1 (en) | 1969-09-11 |
| DE1465320B2 (en) | 1972-03-16 |
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