A new method for manufacturing graded refractories by localized hot uniaxial pressing
| Autor: | Johannes Solarek, Christos G. Aneziris, Horst Biermann |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Pressing Materials science Process Chemistry and Technology Modulus 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure Compression (physics) 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Cylinder (engine) law.invention law 0103 physical sciences Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology Porosity Argon atmosphere |
| Zdroj: | Ceramics International. 43:14636-14641 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2017.07.167 |
| Popis: | In this study, a cylinder of fine-grained carbon-bonded alumina was pressed uniaxially at high temperatures in an argon atmosphere. The resulting changes in mechanical properties, physical properties and microstructure were described with various techniques. The porosity of the material was found to have decreased significantly, leading to higher density, higher dynamic Young's modulus, higher strength and increased hardness. Additionally, gradients in porosity and hardness were observed that resulted from inhomogeneous temperature distribution during compression. Possibilities and conditions for the production of graded refractory materials can be deduced from the results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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