In this communication, Al2O3-20 wt% ZrO2 composites (ZTA) were prepared by a novel oscillatory pressure sintering (OPS) process. An almost perfectly full density of 99.94% and a relatively high flexural strength of 1145 MPa can be achieved for the OPS-fabricated specimen, which were higher than those prepared by pressureless sintering (98.24% and 682 MPa) and hot pressing (99.53% and 990 MPa). The enhancement of flexural strength of the OPS-fabricated specimen was correlated with its smaller flaw size and higher fracture surface energy. It was suggested that OPS was an effective approach to fabricate ZTA composites with ultrahigh density and high strength. This article is protected by copyright. All rights reserved.

中文翻译：

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一种通过振荡压力烧结提高 Al2 O3 -20 wt% ZrO2 复合材料弯曲强度的新方法

在本次交流中，Al2O3-20 wt% ZrO2 复合材料 (ZTA) 是通过一种新型振荡压力烧结 (OPS) 工艺制备的。OPS 制造的试样可以达到几乎完美的 99.94% 的全密度和 1145 MPa 的相对较高的弯曲强度，高于无压烧结（98.24% 和 682 MPa）和热压（99.53% 和 682 MPa）制备的试样。 990 兆帕）。OPS 制造的试样弯曲强度的增强与其较小的缺陷尺寸和较高的断裂表面能有关。提出OPS是制备超高密度和高强度ZTA复合材料的有效途径。本文受版权保护。版权所有。