METHOD FOR PRODUCING LARGE GRANULAR ALPHA-PHASE SILICON CARBIDE POWDERS WITH A HIGH-PURITY

    公开(公告)号:US20210163301A1

    公开(公告)日:2021-06-03

    申请号:US17105200

    申请日:2020-11-25

    Abstract: The present disclosure provide a method for producing large granular high-purity α-phase silicon carbide powders using a silicon dioxide/carbon composite, the method including: producing a gel in which the carbonaceous compound is dispersed in a silicon dioxide network structure through a sol-gel process using starting materials including liquid phase silicon containing compounds and liquid phase carbonaceous compounds; subjecting the gel to first heat treatment to thermally decompose the carbon carbonaceous compound, thereby producing a silicon dioxide/carbon composite including nano-sized carbon particles; and subjecting the silicon dioxide/carbon composite to second heat treatment at a higher temperature than that of the first heat treatment to obtain large granular high-purity α-phase silicon carbide powders.

    Apparatus and method for manufacturing channel-coupled scaffold

    公开(公告)号:US11021586B2

    公开(公告)日:2021-06-01

    申请号:US15438215

    申请日:2017-02-21

    Abstract: The present disclosure relates to an apparatus and a method for manufacturing a channel-coupled scaffold. The present disclosure provides a method for manufacturing a channel-coupled scaffold, which includes: (1) a step of compressing a first elastic substrate which includes a groove on the surface of the substrate to close the groove; (2) a step of loading a scaffold composition onto the closed groove; and (3) a step of restoring the elastic substrate. The present disclosure also provides an apparatus for manufacturing a channel-coupled scaffold, which includes: a first elastic substrate which includes a groove on the surface of the substrate and onto which a scaffold composition is loaded: and a compression module which compresses the width of the groove of the elastic substrate to close it. The apparatus or method may accumulate a microchannel controlling local mass transfer, and align a collagen fiber in the scaffold at the same time.

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