Instability of Si_3N_4/, SiC/, and MoSi_2/ethanol suspensions

Yoko Fukada; Patrick S. Nicholson

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Instability of Si_3N_4/, SiC/, and MoSi_2/ethanol suspensions

机译：Si_3N_4 /，SiC /和MoSi_2 /乙醇悬浮液的不稳定性

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Time-dependent suspension behavior is reported for nonoxide ceramic powders (Si_3N_4, SiC, and MoSi_2) in ethanol. The suspension pH (and therefore the stability) changed with time. X-ray photoelectron spectroscopy, inert gas fusion, inductively coupled plasma, and high-resolution transmission electron microscopy were used to track changes of surface chemistry. The adsorption of the base, tetramethyl ammonium hydroxide (TMAH), is examined. The pH drop on powder addition to pure EtOH was used to gain insight into the role of TMAH coverage of the powder surfaces.

机译：报告了乙醇中非氧化物陶瓷粉末（Si_3N_4，SiC和MoSi_2）随时间的悬浮行为。悬浮液的pH值（以及稳定性）随时间变化。 X射线光电子能谱，惰性气体聚变，感应耦合等离子体和高分辨率透射电子显微镜用于跟踪表面化学变化。检查了碱氢氧化四甲基铵（TMAH）的吸附。粉末添加到纯EtOH中后的pH下降用于深入了解TMAH覆盖粉末表面的作用。

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来源
《Journal of Materials Research》 |2003年第1期|p.45-52|共8页
作者
Yoko Fukada; Patrick S. Nicholson;
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作者单位

McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4L7, Canada;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
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5. Studies of suspension behavior: I. Instabilities of non-Brownian suspensions. II. Microrheology of colloidal suspensions. [D] . Carpen, Ileana Cristina. 2005

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Instability of Si_3N_4/, SiC/, and MoSi_2/ethanol suspensions

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