Abstract: A growth method of dendritic crystal structure that provides directional heat transfer, including the steps: A. providing a substrate, whereby the substrate is provided with a plurality of crystal defects; B. depositing a plurality of metal ions on the substrate using a deposition method, whereby the metal ions on the crystal defects enable the growth of dendritic crystals. Moreover, an interspace is provided between each of the dendritic crystals. Hence, when the substrate is in contact with a heat source, heat energy is transferred from the substrate in the growth direction of the dendritic crystals; or, when the dendritic crystals are disposed at the position of a heat source, heat provided by the heat source is transferred from the dendritic crystals in a direction toward the substrate. Accordingly, the fractal structure of the dendritic crystals is used to provide ample heat dissipation areas and contact areas.

Abstract: A heat transfer component with dendritic crystal structures and a purpose and method of use for such a component; this component is used to resolve the deficiency concerning conventional heat transfer components possessing inadequate surface areas for heat dissipation. Dendritic crystal structure is comprising: a substrate and multiple dendritic crystals. The substrate contains multiple preset crystal defects in which all the dendritic crystals deposit and congregate, and a space is located between each dendritic crystal for thermal convection. Regarding the method of use, the substrate is connected to a heat source, which then induces directional heat transfer from the substrate and the metal layer to the main branch and at least one sub-branch of the dendritic crystal, or the dendritic crystal is placed on a heat source, which induces heat transfer from the crystal to the substrate.

Abstract: Disclosed is a recycling method for waste ceramic filters, and the recycling method includes the steps of heating a waste ceramic filter that no longer has the oil filtering effect, applying an acid to the waste ceramic filter to remove unwanted substances attached on the filter, performing a washing or dewatering step to remove any acid solution remained on the ceramic filter, and performing a drying step to dry the ceramic filter.