氧化铒对3D打印氧化锆陶瓷饰品性能的影响

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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

Received: 14 November 2019 Published: 11 August 2020

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TQ174.6

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	Articles by authors
	WANG Shengliang
	LI Lian
	WANG Minglang
	HE Fupo
	LI Yanhui
	WU Shanghua

Cite this article:

WANG Shengliang,LI Lian,WANG Minglang, et al. Effect of Er₂O₃ on properties of 3D printed zirconia ceramic jewelry[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(3): 239-244.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I3/239

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