| 摘要 |
<p>A thermionic emitter for apparatus such as electron microscopes, scanning electron microscopes, and high power vacuum tubes which require a source of electrons formed from lanthanum strontium vanadate which is prepared from the compounds La(1-x) Sr(x) VO3, where x is the fraction of strontium (Sr) incorporated into LaVO3. The value of x lies between 0.1 and 0.4.</p> |
