|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 97 van 189 gevonden artikelen
| Titel: |
Nano- and Microcomposite Al2O3-Y2O3 Coatings Produced by Sol-Gel Process |
| Auteur: |
Yao, Mingming He, Yedong Zhang, Ying |
| Verschenen in: |
Journal of dispersion science and technology |
| Paginering: | Jaargang 28 (2007) nr. 2 pagina's 219-222 |
| Jaar: |
2007-02-01 |
| Inhoud: |
Nano- and microcomposite Al2O3-Y2O3 coatings have been deposited on Fe-Cr-Mo alloy substrates using sol-gel composite coating technology. The processes include dipping samples in a sol-gel solution dispersed with fine ceramic powders, which is prepared by high-energy ball milling. High-resolution microscopy (FE-SEM) analyses show that the coating is composed of composite particle clusters with an average diameter of 1 µm, and the coating is relatively dense without cracking during drying and sintering stages. XRD analyses show that the oxide coating is mainly composed of α-Al2O3 and γ-Al2O3. The oxidation tests performed in air at 600°C show that the coatings possess much improved resistance to high temperature oxidation and scale spallation. It is believed that the nano-structured composite particles and reactive elements are integrated into the coatings, which played an important role in improving the aggregation of nanoparticles and the production of cracks. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 97 van 189 gevonden artikelen
| << vorige | volgende >> |