High property aluminate for Ba-W cathode by impregnation

Chunying Shen; Zhishun Li; Tai Qiu; Yuchun Wang

High property aluminate for Ba-W cathode by impregnation

Chunying Shen, Zhishun Li, Tai Qiu, Yuchun Wang

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The electron emission materials-aluminates have been synthesized by solid-phase reaction and chemistry liquid-phase co-precipitation. The results of XRD and TG-DSC indicate that the optimal synthesis temperature is 1100°C, 150° lower than solid-phase reaction, by chemistry co-precipitation with the crystal phase of Ba₅CaAl₄O₁₂. The impulse emission current density is 25.3865 A/cm², and the average evaporation velocity V_evap is 5.04 ×l0^-8 (g·cm^-2)·s^-1. So the aluminates synthesized by chemistry liquid-phase co-precipitation can satisfy the requirement of Ba-W cathodes.

Original language	English
Pages (from-to)	2057-2060
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	36
Issue number	11
State	Published - Nov 2007

Keywords

Aluminate
Chemistry liquid-phase co-precipitation
Emission current density
Impregnated cathode

Cite this

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title = "High property aluminate for Ba-W cathode by impregnation",

abstract = "The electron emission materials-aluminates have been synthesized by solid-phase reaction and chemistry liquid-phase co-precipitation. The results of XRD and TG-DSC indicate that the optimal synthesis temperature is 1100°C, 150° lower than solid-phase reaction, by chemistry co-precipitation with the crystal phase of Ba5CaAl4O12. The impulse emission current density is 25.3865 A/cm2, and the average evaporation velocity Vevap is 5.04 ×l0-8 (g·cm-2)·s-1. So the aluminates synthesized by chemistry liquid-phase co-precipitation can satisfy the requirement of Ba-W cathodes.",

keywords = "Aluminate, Chemistry liquid-phase co-precipitation, Emission current density, Impregnated cathode",

author = "Chunying Shen and Zhishun Li and Tai Qiu and Yuchun Wang",

year = "2007",

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language = "英语",

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pages = "2057--2060",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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T1 - High property aluminate for Ba-W cathode by impregnation

AU - Shen, Chunying

AU - Li, Zhishun

AU - Qiu, Tai

AU - Wang, Yuchun

PY - 2007/11

Y1 - 2007/11

N2 - The electron emission materials-aluminates have been synthesized by solid-phase reaction and chemistry liquid-phase co-precipitation. The results of XRD and TG-DSC indicate that the optimal synthesis temperature is 1100°C, 150° lower than solid-phase reaction, by chemistry co-precipitation with the crystal phase of Ba5CaAl4O12. The impulse emission current density is 25.3865 A/cm2, and the average evaporation velocity Vevap is 5.04 ×l0-8 (g·cm-2)·s-1. So the aluminates synthesized by chemistry liquid-phase co-precipitation can satisfy the requirement of Ba-W cathodes.

AB - The electron emission materials-aluminates have been synthesized by solid-phase reaction and chemistry liquid-phase co-precipitation. The results of XRD and TG-DSC indicate that the optimal synthesis temperature is 1100°C, 150° lower than solid-phase reaction, by chemistry co-precipitation with the crystal phase of Ba5CaAl4O12. The impulse emission current density is 25.3865 A/cm2, and the average evaporation velocity Vevap is 5.04 ×l0-8 (g·cm-2)·s-1. So the aluminates synthesized by chemistry liquid-phase co-precipitation can satisfy the requirement of Ba-W cathodes.

KW - Aluminate

KW - Chemistry liquid-phase co-precipitation

KW - Emission current density

KW - Impregnated cathode

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SN - 1002-185X

VL - 36

SP - 2057

EP - 2060

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 11

ER -

High property aluminate for Ba-W cathode by impregnation

Abstract

Keywords

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