A high temperature fastener including a bolt and a nut, where the bolt and the nut are constructed of an aluminum oxide ceramic material reinforced with silicon-carbide crystal whiskers or silicon nitride.

The disclosure relates to a bio-artificial periosteum based on micropatterning of biomimetic mineralized calcium-phosphorus nanoparticles and a method for manufacturing the same. The method includes: first, a micropatterned biomimetic mineralized calcium-phosphorus nanoparticle layer is manufactured on a surface of an inert substrate; then, an organic polymer is cross-linked and solidified on the micropatterned biomimetic mineralized calcium-phosphorus nanoparticle layer; at last, the inert substrate is removed, so that the bio-artificial periosteum based on micropatterning of biomimetic mineralized calcium-phosphorus nanoparticles is obtained. The bio-artificial periosteum not only simulates the composition of natural bone in material components, but also realizes high degree of biomimesis in micro-nano size in structure. Moreover, the distribution of bone marrow mesenchymal stem cells can be regulated by the bio-artificial periosteum, so that the cells can be effectively defined on a surface of calcium-phosphorus particle micropattern and a high degree of ordered alignment thereof can be realized.

An apparatus comprising a substantially smooth internal mold surface forming a cavity and one or more roughened sections of the substantially smooth internal mold surface having a plurality of irregular grooves, wherein each roughened section is inclined with a wider base and a narrower top.

A patterned warning mat according to the present disclosure having a base and a plurality of domes and patterns formed on the base. The warning mat is obtained by a process comprising the steps of providing an open-face mold having a plurality of textures and a plurality of dome indentations, preparing a liquid mixture capable of solidifying, pouring the mixture over the open-face mold, and allowing the mixture to solidify and form the warning mat. The domes and patterns on the warning mat respectively correspond to the dome indentations and textures of the open-face mold.

The present invention provides a seamless form system designed to encase stacked pottery forms, creating a seamless surface for molding clay. This invention addresses issues such as unwanted seams, form shifting, and moisture damage. These issues are prevalent in traditional stackable wood or plaster forms. By providing a unitary, continuous piece without joints or seams, it ensures a smooth finish in the final ceramic products and extends the lifespan of pottery forms. The system simplifies the pottery-making process, enhances product quality, and supports sustainable practices. Ideal for artisans and manufacturers, the system improves pottery and ceramics production by enabling the creation of higher-quality, seamless items with improved efficiency.

A patterned warning mat according to the present disclosure having a base and a plurality of domes and patterns formed on the base. The warning mat is obtained by a process comprising the steps of providing an open-face mold having a plurality of textures and a plurality of dome indentations, preparing a liquid mixture capable of solidifying, pouring the mixture over the open-face mold, and allowing the mixture to solidify and form the warning mat. The domes and patterns on the warning mat respectively correspond to the dome indentations and textures of the open-face mold.

The present invention provides a seamless form system designed to encase stacked pottery forms, creating a seamless surface for molding clay. This invention addresses issues such as unwanted seams, form shifting, and moisture damage. These issues are prevalent in traditional stackable wood or plaster forms. By providing a unitary, continuous piece without joints or seams, it ensures a smooth finish in the final ceramic products and extends the lifespan of pottery forms. The system simplifies the pottery-making process, enhances product quality, and supports sustainable practices. Ideal for artisans and manufacturers, the system improves pottery and ceramics production by enabling the creation of higher-quality, seamless items with improved efficiency.

An apparatus comprising a substantially smooth internal mold surface forming a cavity and one or more roughened sections of the substantially smooth internal mold surface having a plurality of irregular grooves, wherein each roughened section is inclined with a wider base and a narrower top.

A concrete structure mold system and method for producing concrete structures that has a printed outer plate portion designed to circumscribe a first volume, the first volume designed to receive poured concrete therein. Included is at least one removable structure creating a second volume, the second volume designed to occupy a portion of the first volume and designed to have poured concrete form therearound. The printed outer plate portion may be created in sections that are assembled to create the completed concrete structure mold.