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首页> 外文期刊>Journal of Materials Engineering and Performance >Investigation on Addition of Kaolinite on Sintering Behavior and Mechanical Properties of B4C
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Investigation on Addition of Kaolinite on Sintering Behavior and Mechanical Properties of B4C

机译：添加高岭石对B4 C烧结行为和力学性能的影响

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摘要

The objective of the present investigation was to study the effect of kaolinite addition on sintering behavior and mechanical properties of pressureless sintered B4C ceramic. Different amounts of kaolinite, mainly 5 to 30 wt.%, were added to the base material. The in situ reaction of kaolinite with B4C generates SiC and Al2O3, which aid the sintering process and permit pressureless sintering at temperatures between 2050 and 2150 °C. Addition of 30 wt.% kaolinite and sintering at 2150 °C resulted in improving the density of the samples to about 98.5% of the theoretical density. The composite samples exhibited very good mechanical properties (hardness, flexural strength, and fracture toughness). As wt.% Kaolinite increases, strength and toughness increase, and hardness first increases and then decreases.
机译：本研究的目的是研究添加高岭石对无压烧结B4 C陶瓷的烧结行为和力学性能的影响。将不同量的主要为5至30重量％的高岭石添加到基础材料中。高岭石与B4C的原位反应生成SiC和Al2 O3 ，这有助于烧结过程，并允许在2050至2150°C的温度下进行无压烧结。添加30重量％的高岭石并在2150℃下烧结导致将样品的密度提高到理论密度的约98.5％。复合材料样品表现出非常好的机械性能（硬度，弯曲强度和断裂韧性）。随着重量％高岭石的增加，强度和韧性增加，并且硬度先增加然后降低。

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