Control of β-Si3N4 crystal morphology and its mechanism (Part 2) -: Effect of lanthanide additives

被引：30
|
作者：
Kitayama, M
Hirao, K
Toriyama, M
Kanzaki, S
机构：
[1] Fine Ceram Res Assoc, Synergy Ceram Lab, Kita Ku, Nagoya, Aichi 4628510, Japan
[2] Natl Ind Res Inst Nagoya, Kita Ku, Nagoya, Aichi 4628510, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1999年 / 107卷 / 11期
关键词：
silicon nitride; morphology; additive; lanthanide; Ostwald ripening;
D O I：
10.2109/jcersj.107.995
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Alpha-Si3N4 powder mixed with SiO2 and Ln(2)O(3) (Ln = La, Gd or Yb) was heat-treated at 1750-1900 degrees C. After removing the glassy phase, the morphologies of beta-Si3N4 crystals were quantitatively analyzed. The aspect ratios of beta-Si3N4 crystals doped with different lanthanide oxides increased in the order of La2O3 > Gd2O3 > Yb2O3 at high annealing temperatures. The anisotropic Ostwald ripening model successfully simulated grain growth behaviors of beta-Si3N4 with different lanthanide additives, and suggested that the observed difference in grain growth behaviors be due to the change in the reaction rate at the (100) interface between the beta-Si3N4 crystal and the Ln-Si-O-N liquid phase.
引用
收藏
页码：995 / 1000
页数：6
相关论文
共 50 条
  • [41] Effect of rare earth oxide additives on the phase transformation rates of Si3N4
    Kitayama, Mikito
    Hirao, Kiyoshi
    Kanzaki, Shuzo
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (08) : 2612 - 2618
  • [42] Crystallization Behavior of Amorphous Si3N4 and Particle Size Control of the Crystallized α-Si3N4
    Chung, Yong-Kwon
    Kim, Shin-A
    Koo, Jae-Hong
    Oh, Hyeon-Cheol
    Chi, Eun-Ok
    Hahn, Jee-Hyun
    Park, Chan
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2016, 16 (05) : 5403 - 5409
  • [43] Effect of sintering additives on the oxidation behavior of Si3N4 ceramics at 1300°C
    Houjou, K
    Ando, K
    Chu, MC
    Liu, SP
    Sato, S
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (05) : 559 - 567
  • [44] Effect of Nitrogen Pressure on the Morphology of Combustion Synthesized β-Si3N4 Crystals
    Li Wenkui
    Zhuang Hanrui
    TESTING AND EVALUATION OF INORGANIC MATERIALS I, 2011, 177 : 86 - 88
  • [45] Growth mechanism of α-Si3N4 submicron rods prepared from amorphous Si3N4 powders
    Hu, Zunlan
    Zhu, Tianbin
    Wu, Weiwei
    Peng, Zijun
    Hu, Feng
    Xie, Zhipeng
    CERAMICS INTERNATIONAL, 2018, 44 (17) : 22003 - 22007
  • [46] Strengthening and Toughening Effect and Its Mechanism for Si3N4(p)/SiC(w)-MoSi2 Composite
    Zhou Hongming
    Yi Danqing
    Liu Gongqi
    Xiao Lairong
    RARE METAL MATERIALS AND ENGINEERING, 2009, 38 (11) : 1955 - 1959
  • [47] Strengthening and toughening effect and its mechanism for Si3N4(p)/SiC(w)-MoSi2 composite
    Zhou, Hongming
    Yi, Danqing
    Liu, Gongqi
    Xiao, Lairong
    Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2009, 38 (11): : 1955 - 1959
  • [48] Preparation and characterization of porous Si3N4-bonded SiC ceramics and morphology change mechanism of Si3N4 whiskers
    Chen, Changlian
    Liang, Xin
    Luo, Maya
    Zhou, Shicong
    Ji, Jiayou
    Huang, Zhiliang
    Xu, Man
    CERAMICS INTERNATIONAL, 2019, 45 (05) : 5922 - 5926
  • [49] SOME MECHANICAL PROPERTIES OF SI3N4/SI AND SI3N4/SIO2/SI SYSTEMS
    MACKENNA, EL
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1969, 116 (07) : C249 - &
  • [50] EFFECT OF Si3N4 ON THE INSTABILITY OF Li2O-CONTAINING CELSIAN IN THE BAS/Si3N4 COMPOSITES
    Lee, Kuo-Tong
    CORROSION, WEAR, FATIGUE, AND RELIABILITY OF CERAMICS, 2009, 29 (03): : 81 - 88
12345