The Phase Evolution in the Si3N4-AlN System after High-Energy Mechanical Treatment of the Precursor Powder
The Phase Evolution in the Si3N4-AlN System after High-Energy Mechanical Treatment of the Precursor Powder
复制标题
前驱体粉末高能机械处理后 Si3N4-AlN 体系中的相演化
DOI：
10.4028/www.scientific.net/kem.403.7
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
M. Tańcula
中科院分区：
文献类型：
--
作者：
M. Sopicka;T. Pawlik;T. Włodek;M. Tańcula
高能研磨使用机械能通过在粉末颗粒中产生结构变化来激活化学反应。采用加速度为28g的高能球磨对含氧化钇添加剂的铝和氮化硅混合物进行机械活化。活化后的粉末显示出晶体结构的显著破坏和有限的固溶体的形成。与标准混合物相比，活化前体的烧结表现出更高的致密化能力，并且在300 °C的低温下开始。烧结过程中的相演变取决于起始成分和粉末活化程度。
The high-energy milling uses the mechanical energy to activate chemical reactions by developing structural changes in the powder particles. High-energy milling with an acceleration of 28g was applied for the mechanical activation of the aluminium and silicon nitrides mixture with yttria additive. The activated powders showed the significant damage of the crystal structure and limited formation of a solid solution. Sintering of the activated precursor demonstrated higher ability for densification and started at 300 °C lower temperature in comparison to the standard mixture. The phase evolution during sintering was dependent on the starting composition and degree of powder activation.
影响因子：
3.5
作者：
Xin Xu;T. Nishimura;N. Hirosaki;R. Xie;Yoshinobu Yamamoto;Hidehiko Tanaka
通讯作者：
Xin Xu;T. Nishimura;N. Hirosaki;R. Xie;Yoshinobu Yamamoto;Hidehiko Tanaka