Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders
Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders
复制标题
纳米结构和亚微米氧化钛粉末的放电等离子烧结（SPS）
DOI：
10.1016/j.msea.2004.02.009
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发表时间：
2004
期刊：
影响因子：
6.4
通讯作者：
G. Krumpel
中科院分区：
文献类型：
--
作者：
P. Angerer;Lai Gui Yu;K. Khor;G. Krumpel
在800 ~ 1000°C下对亚微米和纳米结构的二氧化钛（TiO 2）粉末进行了放电等离子烧结（SPS），烧结时间为1 min。将结果与使用电阻炉在600 ° C和1000°C之间进行120分钟的常规烧结进行比较。采用X射线衍射（XRD）和扫描电子显微镜（SEM）对压制后的样品进行了分析。这项调查清楚地表明，SPS方法是能够获得样品的高密度和相应的细晶粒尺寸的纳米结构的原料TiO 2粉末。在理论密度>95%的样品中观察到烧结工艺的显著差异，其中当采用SPS时，40 nm粉末的相对晶粒生长商d/do为10.3，而常规烧结获得的值为10.26。
Spark-plasma-sintering (SPS) consolidation of submicron and nanostructured titanium oxide (TiO2) powders was performed between 800 and 1000°C for 1min. The results were compared with conventional sintering using electrical resistant furnace that was performed between 600 and 1000°C for 120min. The compacted samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). This investigation clearly shows that the SPS method is capable of obtaining samples with high densities and corresponding fine grain-size from nanostructured raw TiO2powder. Remarkable difference in the sintering techniques was observed in samples with >95% theoretical density where the relative grain growth quotient d/dofor the 40nm powder was ∼3 when SPS was employed while the value obtained for conventional sintering was ∼26.