Instability of Si3N4/, SiC/, and MoSi2/ethanol suspensions
| Autor: | Patrick S. Nicholson, Yoko Fukada |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Mechanical Engineering Drop (liquid) Analytical chemistry Condensed Matter Physics Ammonium hydroxide chemistry.chemical_compound Adsorption X-ray photoelectron spectroscopy Chemical engineering chemistry Mechanics of Materials Transmission electron microscopy visual_art visual_art.visual_art_medium General Materials Science Ceramic Inductively coupled plasma Inert gas |
| Zdroj: | Journal of Materials Research. 18:45-52 |
| ISSN: | 2044-5326 0884-2914 |
| DOI: | 10.1557/jmr.2003.0007 |
| Popis: | Time-dependent suspension behavior is reported for nonoxide ceramic powders (Si3N4, SiC, and MoSi2) 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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