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Sodium borosilicate (NBS) glass/annealed pyrolytic graphite (APG) fiber composites have been fabricated through a sol-gel process. A glass composition of 80wt% SiO2, 15wt% B2O3, and 5wt% Na2O was chosen, similar to commercial NBS glasses such as Pyrex. A variety of gels with increasing weight percentages of APG were produced and subsequently heat treated and sintered in a uniaxial hot-press. Sol-gel...
Sodium borosilicate glass composites with up to 40wt.% of annealed pyrolytic graphite (APG) have been fabricated through a sol-gel process. The APG was first encapsulated in a layer of mesoporous silica with a tunable thickness, found to substantially aid in dispersion and stability of the APG in a variety of alcohols. The silica coating on the APG provides an ideal interface between APG and a silica-based...
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