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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Rheological behavior of titania ink and mechanical properties of titania ceramic structures by 3D direct ink writing using high solid loading titania ceramic ink
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Rheological behavior of titania ink and mechanical properties of titania ceramic structures by 3D direct ink writing using high solid loading titania ceramic ink

机译：三维直接墨水写入高固型陶瓷油墨用三氧化钛墨水作用的二氧化钛墨水和力学性能的流变行为

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In this paper, high solid loading titania ceramic ink containing sodium hexametaphosphate and sodium alginate had been successfully prepared at room temperature. Rheological behaviors of titania ceramic ink with different solid content were investigated. The rheological results indicated that high solid loading (72 wt%) titania ceramic ink whose shear elastic modulus reached approximately 10(6) Pa in the linear viscoelastic region was the optimal ceramic ink for direct ink writing, due to its good shear thinning and viscoelastic behavior. High solid loading (72 wt%) titania ceramic ink was utilized to fabricate three dimensional titania ceramic parts, and a series of test methods were employed to examine the related properties of titania ceramics sintered at different temperatures including the volumetric shrinkage, porosity, density, microstructures, compressive strength and elastic modulus. The results showed that the volumetric shrinkage and density increased when increasing the sintering temperatures, and the opposite phenomenon was found in porosity of titania ceramic. When the sintering temperature was 1300 degrees C, the compressive strength was about 125.00 MPa. The elastic modulus of titania ceramics sintered at different temperatures (from 1000 degrees C to 1400 degrees C) was between 1.22 GPa and 6.87 GPa. (C) 2018 Elsevier B.V. All rights reserved.
机译：本文在室温下成功地制备了含六偏磷酸钠和海藻酸钠的高固体加载二氧化钛陶瓷油墨。研究了二氧化钛陶瓷油墨具有不同固体含量的流变行为。流变结果表明，由于其良好的剪切变薄和粘弹性，其剪切弹性模量在线粘弹性区域达到约10（6 )Pa的高固载荷（72wt％）二氧化钛陶瓷墨水是直接墨水写入的最佳陶瓷油墨。行为。利用高固体载荷（72wt％）二氧化钛陶瓷油墨制造三维二氧化钛陶瓷零件，并采用一系列试验方法检查烧结在不同温度下的二氧化钛陶瓷的相关性能，包括体积收缩，孔隙率，密度，微观结构，抗压强度和弹性模量。结果表明，在增加烧结温度时，体积收缩和密度增加，并且在二氧化钛陶瓷的孔隙率中发现了相反的现象。当烧结温度为1300℃时，抗压强度约为125.00MPa。在不同温度下烧结的二氧化钛陶瓷的弹性模量（从1000℃〜1400℃）介于1.22GPa和6.87GPa之间。 （c）2018年elestvier b.v.保留所有权利。

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