Abstract This study investigated the densification behaviour and mechanical properties of SrAl12O19/zirconia-toughened alumina (ZTA) composites prepared by two different forming methods, namely, uniaxial pressing and cold isostatic pressing (CIP). The compatibility of hexaaluminate with alumina makes them the most effective second phase, which strengthening the alumina-based matrices. In both techniques, SrAl12O19 was formed in situ. According to our previous study, the effective mass percentage of strontium hexaaluminate that affects the mechanical properties was 10 and 30 mass % hence, in the present study strontium hexaaluminate mass% studied was 10 and 30 mass%. We investigated the densification properties, phase composition, microstructure and mechanical properties in order to correlate the material properties with the forming technique. The study concluded that CIP increased the densification and mechanical properties of 30 mass% SrAl12O19/ZTA composites, among which the fracture toughness enhancement was particularly substantial. The present research results nominate strontium hexaaluminate/ZTA composite containing 10 and 30 mass% SrAl12O19 composites to be used in the cutting tools field.

中文翻译：

---

加工工艺对SrAl12O19/ZTA复合材料性能的影响

摘要 本研究研究了通过两种不同的成型方法，即单轴压制和冷等静压 (CIP) 制备的 SrAl12O19/氧化锆增韧氧化铝 (ZTA) 复合材料的致密化行为和机械性能。六铝酸盐与氧化铝的相容性使其成为最有效的第二相，可强化氧化铝基基质。在这两种技术中，SrAl12O19 都是原位形成的。根据我们之前的研究，影响机械性能的六铝酸锶的有效质量百分比为 10 和 30 质量％，因此，在本研究中，六铝酸锶的研究质量％为 10 和 30 质量％。我们研究了致密化性能、相组成、微观结构和机械性能，以便将材料性能与成型技术相关联。研究得出结论，CIP 提高了 30 质量% SrAl12O19/ZTA 复合材料的致密化和机械性能，其中断裂韧性的提高尤为显着。目前的研究结果提名含有 10 和 30 质量％的 SrAl12O19 复合材料的六铝酸锶/ZTA 复合材料用于切削工具领域。