In this research, the effect of additive BaCO 3 with different volume fraction on the mechanical and physical properties of 5Ni/10NiO.NiFe 2 O 4 cermet including bending strength, micro-hardness, and microstructural evolution was studied. The samples were fabricated by using FeSO 4 .6H 2 O and NiSO 4 .6H 2 O as the starting materials. The manufacturing process of the samples was implemented via jar milling, cold isostatic pressing, and sintering in a tube furnace at 1300 °C for 5 h under vacuum atmosphere. Outstanding results have been achieved on physical properties including the smaller grain size and higher density by increasing the additive BaCO 3 fraction. The bending strength was increased from ~61 MPa to ~91 MPa; nevertheless overall Vickers' hardness decreased by the addition of BaCO 3 .

中文翻译：

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BaCO 3对5Ni / 10N iO.NiFe 2 O 4金属陶瓷物理力学性能的影响

本研究研究了不同体积分数的BaCO 3添加剂对5Ni / 10NiO.NiFe 2 O 4金属陶瓷力学性能的影响，包括弯曲强度，显微硬度和组织演变。以FeSO 4 .6H 2 O和NiSO 4 .6H 2 O为起始原料制备样品。样品的制造过程是通过广口瓶研磨，冷等静压以及在真空炉中于1300°C的管式炉中烧结5 h来实现的。通过增加添加剂BaCO 3的分数，在物理性能（包括较小的晶粒尺寸和较高的密度）方面已取得了出色的结果。弯曲强度从〜61 MPa增加到〜91 MPa；然而，通过添加BaCO 3降低了整个维氏硬度。