Large area of free-standing sol-gel film transmission gratings were obtained by applying poly-α-methylstyrene as thermal degradation sacrificial layer.Phot
Using chitosan, sodium alginate, and tetraethoxysilane as the initial raw materials,chitosan/alginate/silica ternary aerogel beads were successfully prepare
Polyaluminocarbosilane (PACS) can be employed as precursor not only for SiC fibers of ultrahigh temperature resistance, but also for SiC ceramic matrix and