Effect of presintering on the dielectric and mechanical properties of porous reaction-bonded silicon nitride
β Scribed by Jie Xu; Fa Luo; Dongmei Zhu; Xiaolei Su; Wancheng Zhou
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 795 KB
- Volume
- 488
- Category
- Article
- ISSN
- 0921-5093
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The elasto-plastic properties and contact damage evolution of a commercial polycrystalline silicon nitride are evaluated as a function of temperature up to 1000 β’ C, using a recently developed method combining Hertzian indentation and FEM simulation. The results of the study are compared to existing
Highly porous Si 3 N 4 with macroscopically aligned pores were prepared by the unidirectional freeze casting process using liquid N 2 as refrigerant. The increased sintering temperature had no obvious influence on the porosity, but significantly promoted β£ β β€-Si 3 N 4 phase transformation and the g