| Surface Carbonization of Mo La_2O_3 Cathode |
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| 作者姓名： | Nie Zuoren |
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| 作者单位： | Nie Zuoren(聂祚仁)，Zuo Tieyong(左铁镛)，Zhou Meiling(周美玲)，Liu Danmin(刘丹敏)，Wang Jinshu(王金淑) School of Materials Science and Engineering，Beijing Polytechnic University，Beijing 100022，P.R. China |
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| 摘 要： | １ ＩＮＴＲＯＤＵＣＴＩＯＮＣａｒｂｏｎｉｚａｔｉｏｎｉｓｖｅｒｙｉｍｐｏｒｔａｎｔｔｏｍａｎｕｆａｃｔｕｒｉｎｇｄｉｒｅｃｔｈｅａｔｉｎｇｍｅｔａｌｌｉｃｃａｔｈｏｄｅ，ｗｈｉｃｈｌｅａｄｓｔｏｌｏｗｅｒｔｈｅｏｐｅｒａｔｉｎｇｔｅｍｐｅｒａｔｕｒｅａｎｄｉｍｐｒｏｖｅｔｈｅｓｔａｂｌｅｅｍｉｓｓｉｏｎ．Ｉｎｔｈｅｒｅｃｅｎｔｙｅａｒｓ，ｔｈｅｍｏｌｙｂｄｅｎｕｍａｄｄｅｄｗｉｔｈｒａｒｅｅａｒｔｈｏｘｉｄｅｓ，ｓｕｃｈａｓＬａ２Ｏ３，ｈａｓｂｅｅｎｓｔｕｄｉｅｄａｓａｖｅｒｙｈｏｐｅ…
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Surface Carbonization of Mo-La2O3 Cathode |
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| Nie Zuoren,Zuo Tieyong,Zhou Meiling,Liu Danmin,Wang Jinshu.Surface Carbonization of Mo La_2O_3 Cathode[J].Transactions of Nonferrous Metals Society of China,1999,9(3). |
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| Authors: | Nie Zuoren Zuo Tieyong Zhou Meiling Liu Danmin Wang Jinshu |
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| Abstract: | The carbonized structures of Mo La 2O 3 cathode specimens have been investigated by means of FESEM and XRD, respectively. The substructure of carbonized layer in the Mo La 2O 3 cathode has been found for the first time. The results showed that the carbonized layer with uniform Mo 2C was helpful to emission, while the demixing carbonized layer with a compact MoC outside layer was harmful to emission. The uniform Mo 2C layer consists of coarse particles with lots of grain boundary crevices as well as holes arranging perpendicular to the wire axle and up to surface, which was beneficial to the migration of activated rare earth in activation and operating. |
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| Keywords: | microstructure cathodes Mo La 2O 3 carbonization emissionDocument code:A |
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