Diffusion processes and structurization in microwave sintering of BaTiO3-SrTiO3 and Al2O3-Cr2O3 powder systems with complete miscibility

被引：4
作者：
Get'man, O. I. [1 ]
Panichkina, V. V. [1 ]
Radchenko, P. Ya. [1 ]
Skorokhod, V. V. [1 ]
Andreeva, M. G. [1 ]
Eremeev, A. G. [2 ]
Kholoptsev, V. V. [2 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Problems Mat Sci, Kiev, Ukraine
[2] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
来源：
POWDER METALLURGY AND METAL CERAMICS | 2009年 / 48卷 / 5-6期
关键词：
microwave heating; sintering; oxide system; microstructure; IONIC-CRYSTALS; BACO3; FIELD; TIO2;
D O I：
10.1007/s11106-009-9132-9
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：
The paper examines the compaction and structurization of equimolar BaTiO3-SrTiO3 and Al2O3-Cr2O3 powder mixtures with complete miscibility and monophase Al2O3 and Cr2O3 powders under microwave heating (24 and 30 GHz) (MWH) and conventional heating (CH). A gyrotron system is used for MWH and electric furnaces for CH. The samples are prepared by sintering of ultrafine powder mixtures at 1000-1300A degrees C (MWH) and 1700A degrees C (CH). Mercury porometry is used to determine the mean pore size and specific surface area of the samples. The Barus-Bechgold method is employed to find the maximum pore contraction. A quantitative microscopic analysis of the samples is carried out. The content of solid solution is determined using x-ray analysis. The volume and local shrinkage is calculated. Relationships between the local and volume shrinkage, pore structure parameters, and amounts of solid solutions for different heating conditions are shown. The results reveal different diffusion processes in sintering of powder systems with complete miscibility of components under MWH and CH.
引用
收藏
页码：279 / 289
页数：11
相关论文
共 50 条
  • [31] Combustion synthesis of Cr-Al and Cr-Si intermetallics with Al2O3 additions from Cr2O3-Al and Cr2O3-Al-Si reaction systems
    Yeh, C. L.
    Lin, J. Z.
    [J]. INTERMETALLICS, 2013, 33 : 126 - 133
  • [32] High temperature sintering kinetics of αAl2O3 powder
    Ivanovic, MR
    Nenezic, M
    Jokanovic, V
    [J]. SCIENCE OF SINTERING, 2003, 35 (02) : 99 - 102
  • [33] Synthesis and sintering of pure nanocrystalline α-Al 2O 3 powder
    Karagedov G.R.
    Myz' A.L.
    Lyakhov N.Z.
    [J]. Inorganic Materials: Applied Research, 2012, 3 (1) : 28 - 33
  • [34] Combustion synthesis of Al2O3(-Cr2O3)-Cr cermets
    Zeng, XC
    Sun, GX
    Zhang, SG
    [J]. SCRIPTA MATERIALIA, 2000, 42 (12) : 1167 - 1172
  • [35] Microstructure, phase composition and mechanical properties of plasma sprayed Al2O3,Cr2O3 and Cr2O3-Al2O3 composite coatings
    Zamani, P.
    Valefi, Z.
    [J]. SURFACE & COATINGS TECHNOLOGY, 2017, 316 : 138 - 145
  • [36] Interdiffusion and Structural Changes in the Cr2O2-Al2O3(ZrO2) Diffusion Couple under Microwave Heating
    Get'man, O. I.
    Panichkina, V. V.
    Paritskaya, L. N.
    Radchenko, P. Ya.
    Samelyuk, A. V.
    Skorokhod, V. V.
    Bykov, Yu. V.
    Eremeev, A. G.
    [J]. POWDER METALLURGY AND METAL CERAMICS, 2013, 51 (11-12) : 666 - 676
  • [37] Microstructure, phase evolution, mechanical properties and slag corrosion resistance of ZrO2 reinforced Al2O3-Cr2O3 composites
    Cui, Kunkun
    Shen, Xin
    Zhang, Yingyi
    Wang, Hong
    Mao, Haobo
    Zhu, Junjie
    [J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 25 : 5520 - 5537
  • [38] Laser Synthesis of Al2TiO5 and Y3Al5O12 Ceramics from Powder Mixtures Al2O3-TiO2 and Al2O3-Y2O3
    Vlasova, M.
    Kakazey, M.
    Sosa Coeto, B.
    Marquez Aguilar, P. A.
    Rosales, I.
    Escobar Martinez, A.
    Stetsenko, V.
    Bykov, A.
    Ragulya, A.
    [J]. SCIENCE OF SINTERING, 2012, 44 (01) : 17 - 24
  • [39] Sintering Behavior and Mechanical Properties of NiAl, Al2O3, and NiAl-Al2O3 Composites
    Chmielewski, M.
    Nosewicz, S.
    Pietrzak, K.
    Rojek, J.
    Strojny-Nedza, A.
    Mackiewicz, S.
    Dutkiewicz, J.
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2014, 23 (11) : 3875 - 3886
  • [40] Influences of sintering process on (Bi2O3-V2O5-Mn3O4-Y2O3-Co2O3-Cr2O3)-doped ZnO varistors
    Liu, Jianke
    Chen, Yongjia
    Cui, Yonghong
    Han, Chen
    Zhang, Cheng
    Fan, Yahong
    Liang, Chuxuan
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2017, 28 (02) : 2015 - 2022
12345