Article ID Journal Published Year Pages File Type
7912973 Scripta Materialia 2015 4 Pages PDF
Abstract
Highly porous γ-Y2Si2O7 is fabricated by the in situ foam-gelcasting reaction sintering method using Y2O3 and SiO2 starting powders. The prepared porous γ-Y2Si2O7 has multiple pore structures, including interconnected large pores and small pores in the skeleton. The sample sintered at 1550 °C has low linear shrinkage (6.0%), high porosity (84.9%), high compressive strength (6.22 MPa), and low thermal conductivity (0.230 W/(m K)). This work sheds light on porous γ-Y2Si2O7 as a promising high-temperature thermal insulator.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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