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Rotary anode and method for producing a base body for a rotary anode
US9512040B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9512040-B2 |
| Application number | US-201213623300-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 20, 2012 |
| Priority date | Sep 20, 2011 |
| Publication date | Dec 6, 2016 |
| Grant date | Dec 6, 2016 |
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- Title
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Abstract
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A rotary anode for an X-ray tube includes a ceramic base body that carries a focal path for emitting X-rays during electron irradiation. The ceramic base body is made of a mixture of silicon carbide and at least one high temperature-resistant diboride.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rotary anode for an X-ray tube, the rotary anode comprising: a ceramic base body that carries a focal path for emitting X-rays during electron irradiation, wherein the ceramic base body comprises a mixture of silicon carbide and 1-50 total volume percentage of high temperature-resistant diborides, wherein the high-temperature-resistant diborides comprise TaB 2 , and wherein the rotary anode is rotatable at a rotational frequency of 300 Hz-400 Hz at an operating temperature of 1000° C.-1500° C. 2. The rotary anode as claimed in claim 1 , wherein the high temperature-resistant diborides further comprise TiB 2 . 3. The rotary anode as claimed in claim 1 , wherein the ceramic base body has a thermal coefficient of expansion of 5.2·10 −6 K −1 to 6·10 −6 K −1 . 4. The rotary anode as claimed in claim 1 , wherein a thermal coefficient of expansion of the ceramic base body is adapted to a thermal coefficient of expansion of the focal path. 5. The rotary anode as claimed in claim 4 , wherein the focal path comprises tungsten and 5-10 wt. % alloyed rhenium. 6. The rotary anode as claimed in claim 4 , wherein the thermal coefficient of expansion of the ceramic base body is 5.2·10 −6 K −1 to 6·10 −6 K −1 . 7. The rotary anode as claimed in claim 1 , wherein the ceramic base body has a specific thermal capacity of 1.1 J/gK. 8. The rotary anode as claimed in claim 1 , wherein the ceramic base body has a thermal conductivity of 75-80 W/mK at the operating temperature of 1000° C.-1500° C.
Assignees
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Classifications
obtained by pressure sintering · CPC title
Target material · CPC title
obtained by gas pressure sintering · CPC title
Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes · CPC title
Applying a current during sintering, e.g. plasma sintering [SPS], electrical resistance heating or pulse electric current sintering [PECS] · CPC title
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- What does patent US9512040B2 cover?
- A rotary anode for an X-ray tube includes a ceramic base body that carries a focal path for emitting X-rays during electron irradiation. The ceramic base body is made of a mixture of silicon carbide and at least one high temperature-resistant diboride.
- Who is the assignee on this patent?
- Freudenberger Joerg, Lampenscherf Stefan, Pham Gia Khanh, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C04B35/565. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).