Der Einfluss der thermischen Behandlung auf den Binderkoks von Coat- Mix- Material mit Sic- Füller für unterschiedliche Rezepturen und Herstellungsbedingungen
Der Einfluss der thermischen Behandlung auf den Binderkoks von Coat- Mix- Material mit Sic- Füller für unterschiedliche Rezepturen und Herstellungsbedingungen
The effects of the composition and production parameters on porosity, texture and structure of Coat- Mix(CM) materials have been investigated. In particular, CM binder coke was compared with pure binder coke and a conventionally produced material. As filler material which is incompressible, chemical...
| Personal Name(s): | Mingam, C. (Corresponding author) |
|---|---|
| Luhleich, H. / Nickel, Hubertus | |
| Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
| Imprint: |
Jülich
Kernforschungsanlage Jülich GmbH, Zentralbiliothek, Verlag
1989
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| Physical Description: |
94 p. |
| Document Type: |
Report Book |
| Research Program: |
Addenda |
| Series Title: |
Berichte der Kernforschungsanlage Jülich
2302 |
| Link: |
OpenAccess |
| Publikationsportal JuSER |
|
The effects of the composition and production parameters on porosity, texture and structure of Coat- Mix(CM) materials have been investigated. In particular, CM binder coke was compared with pure binder coke and a conventionally produced material. As filler material which is incompressible, chemically inert and porosity-free, two silicon carbide powders of different grain size were used. The heat treatment of specimens was carried out in stages at temperatures between 400 and 1700°C. The porosity and texture formed during heat treatment by release of gases and shrinkage were characterized using a number of different methods. The volume of open macro- and mesopores was measured using mercury porosimetry and by determination of the real density and air permeability. Meso- and micropore volumes were also measured using helium pycnometer and small angle X-ray scattering. Textures were investigated using scanning and transmission electron microscopy and X-ray diffraction measurements. The cyclic temperature resistance of the specimens produced in the course of this study was examinated by exposure in a high energy electron beam. The surfaces of exposed specimens were examined by optical micro-scopy, scanning electron microscopy, Auger spectroscopy and EDAX. The damage was correlated with the material parameters. The CM material exhibited a significantly better resistance to the high energy electron beam exposure than other ceramic materials tested to date. |