Fabrication of crack-free C12A7 nano-ceramics composite from eutectic glass in the C12A7-CaYAlO4 system
Fabrication of crack-free C12A7 nano-ceramics composite from eutectic glass in the C12A7-CaYAlO4 system
复制标题
C12A7-CaYAlO4 体系中共晶玻璃制备无裂纹 C12A7 纳米陶瓷复合材料
DOI：
10.1111/j.1744-7402.2006.02089.x
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发表时间：
2006
影响因子：
2.1
通讯作者：
M. Yoshimura
中科院分区：
文献类型：
--
作者：
N. Sakamoto;Tomoaki Watanabe;M. Yoshimura
在C12A7 - cayalo4体系中加入共晶玻璃，成功地避免了C12A7纳米复合材料结晶过程中裂纹的形成。通过x射线衍射和高分辨率透射电镜鉴定共晶玻璃的晶相为C12A7（主相）和CaYAlO4（次相）。结果表明，C12A7玻璃结晶时产生裂纹的原因是C12A7在玻璃中结晶引起的体积膨胀，而CaYAlO4结晶引起的体积收缩可以避免裂纹的产生。通过使用传统的成型技术，我们还成功地制造了具有任意形状的块状C12A7复合材料。
Crack formation in the C12A7 nano-composite during crystallization was successfully avoided by using the eutectic glass in the C12A7–CaYAlO4 system. The crystal phases from the eutectic glass were identified to be C12A7 (major phase) and CaYAlO4 (minor phase) by X-ray diffraction and high-resolution transmission electron microscope. It was indicated that origin of cracks upon crystallization of C12A7 glass was the volume expansion caused by crystallization of C12A7 in the glass and the cracking could be avoided by the volume shrinkage by crystallization of CaYAlO4. By using a conventional molding technique, we have also succeeded to fabricate a bulk C12A7 composite with arbitrary shapes.
影响因子：
8.6
作者：
Kim, SW;Toda, Y;Hosono, H
通讯作者：
Hosono, H
影响因子：
15
作者：
Kim, SW;Miyakawa, M;Hosono, H
通讯作者：
Hosono, H
影响因子：
4
作者：
Y. Toda;Sung Wng Kim;K. Hayashi;M. Hirano;T. Kamiya;H. Hosono;T. Haraguchi;H. Yasuda
通讯作者：
Y. Toda;Sung Wng Kim;K. Hayashi;M. Hirano;T. Kamiya;H. Hosono;T. Haraguchi;H. Yasuda