Si3N4-Matrix Composite with TiN Particles Formed by In-situ Reaction
Si3N4-Matrix Composite with TiN Particles Formed by In-situ Reaction
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原位反应形成 TiN 颗粒的 Si3N4 基复合材料
DOI：
10.2109/jcersj.105.304
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发表时间：
1997
影响因子：
1.1
通讯作者：
Tsuzuru Inui
中科院分区：
文献类型：
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作者：
K. Ueno;T. Inoue;S. Sodeoka;Masato Suzuki;H. Ishikawa;K. Uchiyama;Tsuzuru Inui
采用原位反应：4TiO 2 +4AlN→4TiN+2Al 2 O 3 +O2，然后热压制备了5vol%TiN颗粒增强Si3 N4基复合材料。采用三种不同粒径（0.28，0.35和1.19μm）的TiO2粉末研究了TiN的内部生成反应。在Si3N4基质烧结之前，反应可能从接近1150 °C开始并在1450°C结束，并且从晶胞尺寸确认TiN形成。测量了在1600°C和1850°C下烧结的复合材料中的TiN颗粒尺寸。当TiO2颗粒尺寸较大（1.19μm）时，颗粒破碎成碎片，并经历氮化以形成比原始TiO2更小尺寸的TiN。较小的TiO2（0.28μm）转化为几乎相同尺寸的TiN颗粒。这些结果表明，在原位TiN的形成进行通过氮化的TiO 2颗粒。
Si3N4 matrix composite reinforced with 5vol% TiN particles was fabricated by the in-situ reaction: 4TiO2+4AlN→4TiN+2Al2O3+O2, followed by hot-pressing. The internal TiN formation reaction was studied using TiO2 powders with three different particle sizes (0.28, 0.35 and 1.19μm). The reaction is likely to start from nearly 1150°C and finishes at 1450°C, before the Si3N4 matrix is sintered, and TiN formation is confirmed from the unit cell dimension. TiN particle sizes in the composites sintered at 1600°C and 1850°C were measured. When the TiO2 particle size was large (1.19μm), the particle crumbled into fragments and underwent nitridation to TiN with a smaller size than that of the original TiO2. Smaller TiO2(0.28μm) was converted into TiN particles of nearly the same size. These results suggest that the in situ TiN formation proceeds through nitridation of TiO2 particles.
DOI：
10.1007/978-1-4613-2233-7
发表时间：
1986-12
期刊：
--
影响因子：
--
作者：
R. E. Tressler;G. Messing;C. Pantano;R. Newnham
通讯作者：
R. E. Tressler;G. Messing;C. Pantano;R. Newnham