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- W2378997823 abstract "In order to study the synthesis of Si-B-O-N ceramic powders from silica and boron nitride mixed on a molecular or even atomic level,carbonfree Si-B-O-N organopolymeric precursors synthesized by solgel method are used to produce ceramic powders through pyrolysis. The excellent properties, such as dielectricity, antidiffusion by copper, and coenhancement, of silica and boron nitride are sufficiently expressed by the Si-B-O-N ceramics. DSC-TG, XRD, IR and TEM techniques are used to analyze the pyrolysis characteristics of precursor gel, together with structure and morphology of the nanosized ceramic powders. Experimental results indicate that the pyrolysis process of precursor gels mainly occurs at a temperature in the range from 250 ℃ to 400 ℃, via insitu polymerization and inorganic conversion by releasing amino groups. Si-B-O-N ceramic powders are of amorphous state, composed of B-N loops, Si-O and Si-N-O groups. The morphologies of powders are even spherical particles of about 20 nm in diameter." @default.
- W2378997823 created "2016-06-24" @default.
- W2378997823 creator A5091718689 @default.
- W2378997823 date "2003-01-01" @default.
- W2378997823 modified "2023-09-23" @default.
- W2378997823 title "Synthesis and characterization of nano-sized Si-B-O-N ceramic powders" @default.
- W2378997823 hasPublicationYear "2003" @default.
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