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In the alcohol permselective pervaporation process, the hydrophobicity of the membrane usually plays an important role. The microstructure of membrane surface has significant influence on its hydrophobicity. In this study, a MCM-41@ZIF-8/PDMS hybrid membrane with micro- and nanoscaled hierarchical structure was prepared. ZIF-8 nanocrystal in situ grew on the surface of microscaled MCM-41 to fabricate...
In this paper transition layer is used for heterogeneous stack substrate bonding between GaAs and Si which includes Wafer to Wafer bonding technology and GaAs MMIC Die to Si wafer bonding technology. In consideration of the different thermal expansion coefficient between GaAs and Si,low temperature metal eutectic bonding was adopted for heterogeneous substrate bonding. It's succeeding to heterogeneous...
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