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发明公开
CN103074514A 二次电子发射用铍铜合金 无效 - 驳回

二次电子发射用铍铜合金
摘要：
本发明提出一种二次电子发射用铍铜合金材料，其在150~1000V内二次电子发射呈峰状特性（在500~600V达到峰值），合金质量百分成分为：含铍2.7-3.0wt.%，含镍≤0.31wt.%，含铁≤0.058wt.%，含铝≤0.013wt.%,含硅≤0.028wt.%，含铅≤0.0020wt.%,含镉≤0.0020wt.%,含锌≤0.0020wt.%,其它杂质元素之和≤0.43wt.%。本发明在150~1000V内二次电子发射呈峰状特性，在500~600V达到峰值，峰值能到9以上，远远超过目前峰值为5的水平。
摘要（英）：

The invention provides beryllium-copper alloy for secondary electron emission. With adoption of the beryllium-copper alloy, the secondary electron emission shows peak-like features in 150-1000 V and achieves a peak in 500-600 V, wherein the beryllium-copper alloy is composed of the following components in percentage by mass: 2.7-3.0 wt% of beryllium, less than or equal to 0.31 wt% of nickel, less than or equal to 0.058 wt% of iron, less than or equal to 0.013 wt% of aluminum, less than or equal to 0.028 wt% of silicon, less than or equal to 0.0020 wt% of lead, less than or equal to 0.0020 wt% of cadmium, less than or equal to 0.0020 wt% of zinc, and less than or equal to 0.43 wt% of other impurity elements. According to the beryllium-copper alloy for secondary electron emission, the secondary electron emission shows the peak-like features in 150-1000 V and achieves the peak in 500-600 V, and the peak can be over 9 that is far more than the existing peak level of 5.

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