发明名称 |
Polycrystalline diamond elements having convex surfaces |
摘要 |
A diamond element (10) having a convex surface is disclosed, the convex surface including a spherical segment for which the maximum peak to valley deviation from a perfect spherical surface is less than about 5 mum. The diamond element (10) may be a solid polycrystalline diamond material and/or may comprise base material which is coated with diamond. Alternatively or in addition, the RMS deviation from a perfect spherical surface may be less than about 500 nm, or the RMS roughness less than about 30 nm. A diamond element (10) with a radius of curvature less than about 20 mm is also disclosed. In one aspect a diamond element (10) having a conical half-angle greater than about 10° is described. Diamond elements (10) of this type are intended for use as metrology tips.
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申请公布号 |
US8468707(B2) |
申请公布日期 |
2013.06.25 |
申请号 |
US20080523291 |
申请日期 |
2008.01.18 |
申请人 |
SCARSBROOK GEOFFREY ALAN;MOLLART TIMOTHY PETER;ELEMENT SIX LIMITED |
发明人 |
SCARSBROOK GEOFFREY ALAN;MOLLART TIMOTHY PETER |
分类号 |
G01B1/00;B32B9/00;G01B5/012 |
主分类号 |
G01B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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