公开(公告)号：US20190210927A1

公开(公告)日：2019-07-11

申请号：US16289369

申请日：2019-02-28

申请人： SHANDONG SINOCERA FUNCTIONAL MATERIAL CO., LTD.

发明人： Aimin YANG ,  Xuekui MO ,  Xibin SONG

IPC分类号： C04B35/488 ,  C04B35/64 ,  C04B35/626

摘要： Provided is a high-light transmittance zirconia sintered body, prepared by processing and forming a material for the high-light transmittance zirconia sintered body, and then performing high-temperature sintering in the atmosphere under normal pressure. The material for a high-light transmittance zirconia sintered body is prepared from zirconia powder and α-aluminum oxide as raw materials, wherein the molar percentage of yttrium oxide in the zirconia powder is 4-6%. The high-light transmittance zirconia sintered body can be used for preparing a fixed dental prosthesis. The zirconia sintered body has a grain size of 0.1-0.7 μm, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures are good in texture, good in jade-like appearance, and closer to the human teeth.

公开(公告)号：US20190231650A1

公开(公告)日：2019-08-01

申请号：US16329637

申请日：2017-08-03

申请人： SHANDONG SINOCERA FUNCTIONAL MATERIAL CO., LTD.

发明人： Aimin YANG ,  Xuekui MO ,  Xibin SONG

IPC分类号： A61K6/02 ,  A61C13/083 ,  A61C13/00 ,  A61K6/00 ,  C04B35/488 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64

CPC分类号： A61K6/024 ,  A61C13/0022 ,  A61C13/083 ,  A61K6/0008 ,  A61K6/02 ,  C04B35/48 ,  C04B35/488 ,  C04B35/622 ,  C04B35/626 ,  C04B35/6261 ,  C04B35/6264 ,  C04B35/62695 ,  C04B35/63416 ,  C04B35/63488 ,  C04B35/64 ,  C04B2235/3246 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/604 ,  C04B2235/608 ,  C04B2235/6567 ,  C04B2235/9653

摘要： Provided is a light-transmissive zirconia sintered body, obtained by preparing a green body from a powder for the light-transmissive zirconia sintered body by means of isostatic pressing, and sintering the green body at a high temperature and normal pressure after degreasing and biscuit firing. The light-transmissive zirconia sintered body is prepared by dispersing zirconia powder in water, adding an appropriate amount of a dispersant and a binder, mixing the mixture to form a slurry, and spray-granulating same, wherein the molar percentage of yttrium oxide in the zirconia powder is 3-5%. The light-transmissive zirconia sintered body can be used for preparing a fixed dental prosthesis.