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表面活性劑對(duì)Si3N4注射成型的影響
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TG148

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國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展規(guī)劃資助項(xiàng)目(2000067203)


The Effects of Surfactants on CIM of Si3N4
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    摘要:

    就硬脂酸（SA）及硅烷KH570兩種不同的表面活性劑對(duì)注射成型各階段的影響進(jìn)行了研究。實(shí)驗(yàn)證明：硬脂酸在降低原始粉料混合粘度時(shí)所起的作用明顯；硅烷KH570在降低經(jīng)過(guò)表面氧化處理的Si3N4粉料混合粘度時(shí)作用效果明顯；不同表面活性劑及不同用量對(duì)脫脂效果影響不大；但隨著表面活性劑用量增加，燒結(jié)體密度逐漸減少，同樣硬度也逐漸減少。但當(dāng)溶劑脫脂應(yīng)用于脫脂階段時(shí)，燒結(jié)體性質(zhì)在密度、硬度方面都有所提高，表面活性劑的影響不再呈明顯的規(guī)律性。

    Abstract:

    The effects of silane KH570 and stearic acid on ceramic injection molding for different stages were studied and analyzed in this article. Results show that stearic acid can play an effective part in reducing viscosity of as-received Si3N4 powder system and silane KH570 can play an important part in oxidized Si3N4 powder system. Debinding value was not affected by surfactants and its dosages, but the density and hardness of sintering body were reduced with the increasing of surfactants content. Density and hardness of sintering body could be improved when solvent debinding process was applied.

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顏魯婷 司文捷 熊滔 苗赫濯.表面活性劑對(duì)Si3N4注射成型的影響[J].稀有金屬材料與工程,2004,33(5):534~538.[Yan Luting, Si Wenjie, Xiong Tao, Miao Hezhuo. The Effects of Surfactants on CIM of Si3N4[J]. Rare Metal Materials and Engineering,2004,33(5):534~538.]
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  • 最后修改日期:2002-10-08
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