| 添加剂对自蔓延高温合成AlN的影响 |
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| 引用本文： | 王华彬,韩杰才,郑永挺,杜善义.添加剂对自蔓延高温合成AlN的影响[J].硅酸盐学报,2000,28(1):15-19. |
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| 作者姓名： | 王华彬 韩杰才 郑永挺 杜善义 |
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| 作者单位： | 哈尔滨工业大学复合材料研究所,哈尔滨,150001 |
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| 摘 要： | 着重研究了添加剂对自蔓延高温合成ＡｌＮ中的含氧量增加的影响，讨论了ＡｌＮ中的氧量增加的影响，讨论了ＡｌＮ形态与含氧量之间的关系。疏松剂ＮＨ４Ｃｌ虽可使得产物疏松，易于破碎，但它增加了体系中水蒸汽量，促进ＡｌＮ中含量的增加。
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| 关 键 词： | 自蔓高温合成 氮化铝 助剂 电子材料 |
| 修稿时间： | 1999-03-22 |
EFFECT OF ADDITIVES ON SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS AlN |
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| Wang Huabin,Han Jiecai,Zheng Yongtin,Du Shanyi.EFFECT OF ADDITIVES ON SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS AlN[J].Journal of The Chinese Ceramic Society,2000,28(1):15-19. |
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| Authors: | Wang Huabin Han Jiecai Zheng Yongtin Du Shanyi |
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| Abstract: | Effect of additives on the oxygen content and morphology of SHS AlN is focused in the study. The NH 4Cl additive made the product loosen. However, it promotes the increase of oxygen content in the product at the same time. Small amount of carbon can decrease the effect of NH 4Cl. Partly carbonized sucrose can significantly decrease the oxygen content in the product due to its larger surface area, which resulted from its carbonization in the combustion area. The morphology of AlN is related to its oxygen content. AlN trends to form particle at the low_oxygen atmosphere, and inclined to grow in the form of whiskers by the vapour-liquid-solid(VLS) mechanism at the atmosphere of high_oxygen. The formation of liquid, required by the VLS mechanism, depended on moisture and oxygen in the nitrogen. |
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| Keywords: | self_propagating high_temperature synthesis(SHS) aluminium nitride additive |
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