氧化铒对3D打印氧化锆陶瓷饰品性能的影响

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摘要在ZrO₂陶瓷粉体中添加Er₂O₃作为着色剂,通过数字光处理(digital light processing, DLP)技术进行3D打印成形和1 500 ℃烧结,制备Er₂O₃含量(质量分数,下同)为2%~10%的品红色ZrO₂陶瓷饰品,研究Er₂O₃对ZrO₂陶瓷饰品的力学性能、微观结构和颜色值(明度L*,红绿度a*和黄蓝度b*)的影响。结果表明,随Er₂O₃含量增加,ZrO₂由四方相向立方相转变,孔隙度略有增加,相对密度下降,硬度及断裂韧性降低,明度L*减小,红绿度a*增大。当Er₂O₃含量为5%时,陶瓷的相对密度为93.16%,维氏硬度为9.8±0.3 GPa,断裂韧性为5.0±0.4 MPa·m ^1/2,颜色值为：明度L*=84.49,红绿度a*=14.57,黄蓝度b*=-2.54,颜色美观,品红色色泽纯正,符合审美要求。

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	王胜亮
	李练
	王明浪
	何福坡
	李艳辉
	伍尚华

关键词 ：氧化锆, 氧化铒, 陶瓷饰品, DLP光固化成形, 力学性能, 颜色值

Abstract：Er₂O₃ was added to ZrO₂ ceramic powder as a colorant, and digital light processing (DLP) 3D printing molding and 1 500 ℃ sintering are used to prepare magenta ZrO₂ ceramic jewelry. The effects of Er₂O₃ on the mechanical properties, microstructure and color values (Lightness L*, red-greenness a* and yellow-blueness b*) of ZrO₂ ceramic jewelry were studied. The results show that with the increase of Er₂O₃ content, ZrO₂ changes from tetragonal phase to cubic phase. The porosity increases slightly, and the relative density, hardness and fracture toughness decrease. Lightness L* decreases, and red-greenness a* increases. When the amount of Er₂O₃ is 5%, the relative density of the ceramic is 93.16%; the Vickers hardness is 9.8±0.3 GPa; the fracture toughness is 5.0±0.4 MPa∙m^1/2. The color values are L*=84.49, a*=14.57, b*=-2.54. The color is beautiful, and the magenta color is pure, which meets the aesthetic requirements.

Key words： zirconia Er₂O₃ ceramic jewelry DLP light curing molding mechanical properties color value

收稿日期: 2019-11-14 出版日期: 2020-08-11

ZTFLH:

TQ174.6

基金资助:广东省科技厅前沿科技专项(2017B090911011)

通讯作者: 伍尚华,教授,博士。电话：13352873026;E-mail: swu@gdut.edu.com。李艳辉,助理研究员,博士。电话：15989002220;E-mail：liyanhui@gdinm.com

引用本文:

王胜亮, 李练, 王明浪, 何福坡, 李艳辉, 伍尚华. 氧化铒对3D打印氧化锆陶瓷饰品性能的影响[J]. 粉末冶金材料科学与工程, 2020, 25(3): 239-244.
WANG Shengliang, LI Lian, WANG Minglang, HE Fupo, LI Yanhui, WU Shanghua. Effect of Er₂O₃ on properties of 3D printed zirconia ceramic jewelry. Materials Science and Engineering of Powder Metallurgy, 2020, 25(3): 239-244.

链接本文:

http://pmbjb.csu.edu.cn/CN/ 或 http://pmbjb.csu.edu.cn/CN/Y2020/V25/I3/239

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