Dense, bubble-free ceramic deposits from aqueous suspensions by electrophoretic deposition
Dense, bubble-free ceramic deposits from aqueous suspensions by electrophoretic deposition
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通过电泳沉积从水悬浮液中沉积致密、无气泡的陶瓷沉积物
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Y. Sakka
中科院分区：
文献类型：
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作者：
T. Uchikoshi;K. Ozawa;B. Hatton;Y. Sakka
研究了氧化铝和氧化锆水悬浮液在阴极上电泳沉积正电荷粒子的特性。在不同的电流密度下使用几种金属基底进行沉积。对于大多数基底材料，存款中出现了大量的大孔，由于气泡的形成，它们的尺寸随着电流密度的增加而增加。然而，无论电流密度如何，在钯基底上的存款中没有形成大孔。由水悬浮液在钯基底上的EPD沉积物的绿色密度和烧结性能与粉浆浇铸相同。无气泡的氧化锆/氧化铝层压复合材料也制造了EPD从水悬浮液。
The characteristics of electrophoretic deposition (EPD) of positively charged particles onto a cathode were investigated using aqueous alumina and zirconia suspensions. The deposition was performed using several kinds of metal substrates at different current densities. For most substrate materials, a large number of macropores appeared in the deposit, and their size increased with the current density due to gas bubble formation. However, no macropores were formed in the deposit on a palladium substrate, regardless of the current density. The green density and sintering properties of the EPD deposits on a palladium substrate from aqueous suspensions were the same as from slip casting. Bubble-free zirconia/alumina laminate composites were also fabricated by EPD from aqueous suspensions.