Synthesis of β-Si3N4 particles from α-Si3N4 particles

被引：42
|
作者：
Hirata, T [1 ]
Akiyama, K [1 ]
Morimoto, T [1 ]
机构：
[1] Mitsubishi Heavy Ind Ltd, Adv Technol Res Ctr, Kanazawa Ku, Yokohama, Kanagawa 2368515, Japan
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2000年 / 20卷 / 08期
关键词：
aspect ratio; phase transformations; Si3N4;
D O I：
10.1016/S0955-2219(99)00266-6
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：
This report describes an investigation of the synthesis of beta-Si3N4 particles from alpha-Si3N4 particles. The beta fraction of Si3N4 particles was found to depend on temperature, heating time, and the type of crucibles in which the Si3N4 particles were heated. When Si3N4 particles were heated in a crucible made of carbon, most alpha-Si3N4 particles converted to beta-Si3N4 after heating at 2000 degrees C for 90 min in an atmosphere of N-2 of 9 kgf/cm(2). The morphology of the resulting beta-Si3N4 particles appeared as a whisker shape. When Si3N4 particles were heated in a crucible made of boron nitride, most alpha-Si3N4 particles converted to beta-Si3N4 after heating at 2000 degrees C for 480min in an atmosphere of N-2 of 9kgf/cm(2). The resulting morphology was equiaxed. It is suspected that the transformation occurs via the gas phase and is affected by the partial pressure of oxygen in the atmosphere. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1191 / 1195
页数：5
相关论文
共 50 条
  • [41] Concise synthesis of NaTi2(PO4)3 nanocrystals with size and morphology control
    Hanqing Dai
    Wenqian Xu
    Kehan Yu
    Wei Wei
    Chinese Chemical Letters, 2019, 30 (02) : 517 - 520
  • [42] Effect of Synthesis Conditions on the Size and Aspect Ratio of Acicular Iron(III) α-Oxyhydroxide Particles Prepared in the FeSO4–NH4OH–O2–H2O System
    E. Yu. Karateeva
    A. I. Mikhailichenko
    A. V. Krylova
    N. V. Nefedova
    Inorganic Materials, 2001, 37 : 37 - 40
  • [43] Multicomponent bulk metal nitride (Nb1/3Ta1/3Ti1/3)N1-δ synthesis via reaction flash sintering and characterizations
    Mondal, Santanu
    Durygin, Andriy
    Drozd, Vadym
    Belisario, Jose
    Cheng, Zhe
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2020, 103 (09) : 4876 - 4893
  • [44] Well-defined synthesis of crystalline MnO, Mn2O3, and Mn3O4 phases by anodic electrodeposition and calcination
    Cestaro, Roberto
    Rheingans, Bastian
    Schweizer, Peter
    Muller, Arnold
    Vockenhuber, Christof
    Cancellieri, Claudia
    Jeurgens, Lars P. H.
    Schmutz, Patrik
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2024, 107 (12) : 8676 - 8690
  • [45] Synthesis, growth mechanism, and performance of in-situ catalytic growth Al 4 SiC 4 whiskers in Al 2 O 3-SiC - C refractories
    Li, Wenhao
    Xu, Zhiyuan
    Abudurexiti, Pazilaiti
    Li, Rong
    Tang, Hongting
    Yang, Heming
    Mao, Xiaodong
    Zhang, Shaowei
    Zhen, Qiang
    CERAMICS INTERNATIONAL, 2024, 50 (17) : 29494 - 29502
  • [46] Hydrothermal Synthesis of Mesoporous Co3O4 Nanorods as High Capacity Anode Materials for Lithium Ion Batteries
    Wang, Bin
    Wang, Shifeng
    Tang, Yuanyuan
    Ji, Yaxiong
    Liu, Wei
    Lu, Xiao-Ying
    INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS, 2019, 158 : 5293 - 5298
  • [47] Synthesis and characterization of mixed manganese-gallium oxides Mn3-xGaxO4 (x=1-2) with the spinel structure
    Venediktova, O. S.
    Bulavchenko, O. A.
    Afonasenko, T. N.
    Tsyrul'nikov, P. G.
    Vinokurov, Z. S.
    Chesalov, Yu. A.
    Tsybulya, S. V.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 725 : 496 - 503
  • [48] Effect of cooling rate on microstructure and crystallographic characters for Fe3O4 seam-free on J82B steel from 650 °C
    Wang, Junyang
    Mu, Jinwen
    Wan, Shanhong
    Yi, Gewen
    Jiang, Jun
    Yu, Xianglong
    Yang, Xinlong
    PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, 2023, 33 (05) : 718 - 732
  • [49] CrVI→CrV Transition in Uranyl Chromium Compounds: Synthesis and High-temperature X-ray Diffraction Study of Cs2[(UO2)2(CrO4)3]
    Siidra, Oleg I.
    Nazarchuk, Evgeny V.
    Kayukov, Roman A.
    Bubnova, Rimma S.
    Krivovichev, Sergey V.
    ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2013, 639 (12-13): : 2302 - 2306
  • [50] Novel hybrid self-assembly of an ultralarge ZnO macroflower and defect intensity-induced photocurrent and photocatalytic properties by facile hydrothermal synthesis using CO(NH2)2-N2H4 as alkali sources
    Duo, Shuwang
    Li, Yangyang
    Liu, Zhao
    Zhong, Ruifang
    Liu, Tingzhi
    MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2016, 56 : 196 - 212
12345