基于喷射粘结工艺的陶瓷坯体后处理性能调控

doi:10.3969/j.issn.1004-132X.2021.01.008

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Abstract It was difficult to control the structure of the ceramic parts or to realize a high-density green body, and the effects of postprocessing at atmospheric pressure were usually poor when forming ceramic green parts by commercial BJP system. The densification of Al2O3 green specimens were controlled by adjusting the formulation of molding powder materials, adjusting the thickness of powder layers and switching powder-dispensing method based on the self-developed BJP system and own material. The relatively density of the high-dense green specimens was reached 43.9%. Furthermore, the integrated post-processing procedure of “ceramic slurry infiltration and stepwise sintering” was used to study the infiltration-strengthening mechanism against different green bodies, and thereby, presintering processes were regulated to significantly improve the final performance of high density green bodies, having the relatively density, bending strength and compressive strength of 89.3%, 91.9 MPa and 813.2 MPa, respectively, after sintering under atmospheric pressures. The forming material, process procedures and equipment applied in this study had low threshold and were easy to operate, providing a flexible and quick technical scheme for the preparation of high-performance structural ceramics.

Key words： ceramic additive manufacturing binder jet printing (BJP) process urea formaldehyde

PACS:	TQ174
	TF124

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	Articles by authors
	CAO Shu1
	2
	HE Xueming3
	XIE Fangxia1
	YU Jinghu3

Cite this article:

CAO Shu1,2,HE Xueming3等. Postprocessing Performance Regulation for Ceramic Part Based on Controllable Binder Jet Printing Processes[J]. China Mechanical Engineering, 2021, 32(01): 54-64.

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http://www.cmemo.org.cn/EN/10.3969/j.issn.1004-132X.2021.01.008 OR http://www.cmemo.org.cn/EN/Y2021/V32/I01/54

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