| Synthesis and Processing Effects on Microstructure
and Mechanical Properties of Forsterite Ceramics |
Hao Liu*, Chuang Jie, Yan Ma, Zhoufu Wang and Xitang Wang
Pages : 83-87
DOI : 10.1080/0371750X.2020.1722754 |
| Abstract |
| Suitable sintering ability and excellent densification are important factors for forsterite
(Mg2SiO4) ceramics and refractories when used in glass furnaces, continuous casting
tundishes, non-ferrous metal smelters, etc. Here, a dense and fine-grained structure
has been obtained in the forsterite ceramics prepared by two-step sintering process.
Results show that combination of grinding and second step sintering can eliminate
MgSiO3 secondary phase, reduce intergranular pores and increase sintering
densification of forsterite. By substituting mechanical activation for grinding, grain
refinement and microstructural uniformity can be further promoted, resulting in
increased bulk density and enhanced cold crushing strength. This work suggests that
combination of two-step sintering and mechanical activation is effective for the
preparation of forsterite ceramics with excellent densification and microstructure used
in the high temperature industrial field.
[Keywords: Forsterite, Sintering, Densification, Mechanical properties] |
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