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Zhang Y.,Nanjing University of Technology | Kong D.,Jiangsu Gaochun Ceramics Co. | Tao Y.,Nanjing University of Technology | Zhu J.,Nanjing University of Technology | Yao N.,Nanjing University of Technology
Advanced Materials Research | Year: 2010

Calcium metaphosphate (CMP) fine powders were produced by a chemical precipitation method. In order to produce the powders, CMP was prepared by the mixing of two precursors, such as calcium oxide (CaO) and phosphate acid (H3PO4). Sparingly soluble chemicals, the Ca/P ratio of the mixture was set to be 0.50 to produce stoichiometric CMP, were chemical agitated in phosphate acid solution. At least 3 hours of pre-hydrolysis of phosphorus precursor were required to obtain CMP phase. The CMP powders were dried in a drying oven at 60°C for 72 hours and then heat-treated at various temperatures at a ramp of 1°C /min in air for various hours. The obtained powder was analyzed using XRD, XRF, FT-IR, SEM, TG-DTA, Zeta Potential Meter, Specific Surface Area, and Particle Size Analyzer. The results showed that obtained CMP powders have a significantly powder characteristics. © (2010) Trans Tech Publications.


Zhang Y.,Nanjing University of Technology | Kong D.,Jiangsu Gaochun Ceramics Co. | Feng X.,Red Cross
Ceramics International | Year: 2012

A new method to enhance the flexural strength of porous β-tricalcium phosphate (β-TCP) scaffolds was developed. This new method provides better control over the microstructures of the scaffolds and enhances the scaffolds' mechanical properties. Using this technique, we were able to produce scaffolds with mechanical and structural properties that cannot be attained by either the polymer sponge or slip-casting methods alone or by simply combining the polymer sponge and slip-casting methods. The prepared scaffolds had an open, uniform, interconnected porous structure with a bimodal pore size of 100.0-300.0 μm. The flexural strength of the bimodal porous β-TCP scaffold sintered at 1200 °C was 56.2 MPa and had porosity of 61.4 vol%. The scaffolds obtained provide good mechanical support while maintaining bioactivity, and hence, these bioscaffolds hold promise for applications in hard-tissue engineering. © 2011 Elsevier Ltd and Techna Group S.r.l.


Zhang Y.,Nanjing University of Technology | Kong D.,Jiangsu Gaochun Ceramics Co. | Yokogawa Y.,Osaka City University | Feng X.,Red Cross | And 2 more authors.
Journal of the American Ceramic Society | Year: 2012

The formation of sufficiently large three-dimensional nano/macroporosity in bone scaffolds remains a challenge despite the numerous fabrication methods reported in literature. The presence of such porosity is required for tissue ingrowth and for the concurrent degradation of implanted structure. A new technique of combining the slip casting and polymer sponge methods using the slips with different powders was introduced in the study to prepare hydroxyapatite scaffolds with bimodal pore sizes. This technique provided better control over the microstructures of scaffolds and enhanced their mechanical properties compared to traditional methods. With this technique, we were able to produce scaffolds with mechanical and structural properties that could not be attained by the polymer sponge or slip-casting method alone. The scaffolds were prepared with an open, uniform, and interconnected porous structure with a bimodal pore size of 100-300 μm. The bimodal porous hydroxyapatite scaffold sintered at 1200°C had a large flexural strength of 73.3 MPa and a porosity of 52.5 vol%. These bioscaffolds hold promise for applications in hard tissue engineering. © 2011 The American Ceramic Society.


Trademark
Jiangsu Gaochun Ceramics Co. | Date: 2004-12-25

Porcelain ware and earthenware not included in other classes (including bowls, basins [receptacles], pots, non-electric kettles, tableware not of precious metal, jugs, vats, jars, vases, cooking pots).


Trademark
Jiangsu Gaochun Ceramics Co. | Date: 2015-10-27

Utensils for household purposes, namely, serving trays; enamel and plastic ware for everyday use, namely, basins, bowls, plates, kettles, and cups; kitchen containers; glassware for everyday use, namely, cups, plates, kettles, and jars; porcelain for everyday use, namely, basins, bowls, plates, kettles, tableware in the nature of tea services, jars, jugs and pots; pottery for everyday use, namely, basins, bowls, plates, jars, jugs, pots, marmites in the nature of cooking pots, kettles, and ceramic tableware in the nature of tea services; acid-and alkali-resistant ceramic tea services; china ornaments; tri-coloured glazed pottery in the nature of tea services of the tang dynasty; works of art of porcelain, terra-cotta or glass.

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