Lanthanum hexaboride (LaB6) single crystal is a special structure crystal, which has good conductivity and low work function. When working at 1400~1680 °C, it can obtain DC emission current of 0-100A/cm2, far better than oxide and other pure metal cathodes. The cathode characteristics of lanthanum hexaboride are as follows: – Extended Life – Thousands of Hours …
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Advanced Ceramic Materials 