Net shape of ceramics coated dental prosthesis crown by DC pulse resistance sintering

采用直流脉冲电阻烧结工艺，研制出了一种性能和几何精度均适宜的纯钛粉末薄壁圆柱体的烧结净成形工艺。此外，还研制了一种采用直流脉冲电阻烧结的纯钛修复体及其陶瓷涂层冠的专用石墨模具。研制的专用模具可用于烧结性能和几何精度合适的纯钛全冠。

The present authors have developed a net shape forming process for sintering a thin-walled cylindrical can made of pure titanium powder by DC pulse resistance sintering process with appropriate property and geometrical accuracy. In addition, a special graphite dies, which is used DC pulse resistance sintering, to sinter pure titanium dental prosthesis crown and the ceramics coated crown have been developed. Pure titanium crown with appropriate property and geometrical accuracy can be sintered by the developed special dies.