Kyanite concentrate of the Karabash deposit: Phase transformations during heating

被引：0
|
作者：
I. D. Kashcheev
V. M. Ust’yantsev
S. N. Sychev
机构：
[1] GOIVPO UGTU-UPI,
来源：
Refractories and Industrial Ceramics | 2007年 / 48卷
关键词：
Silica Glass; Cristobalite; Kyanite; Andalusite; Linear Thermal Expansion Coefficient;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Results are provided for a study of the phase transformation during heating of kyanite concentrates of the Karabash deposit, and the effect of temperature, soaking at the final temperature, and grain size on parameters of kyanite thermal decomposition. IR-spectra for kyanite concentrate of a different degree of transformation, and the microstrcuture of a partially decomposed kyanite grain are given. It is shown that thermal decomposition of kyanite proceeds in the range 1300–1400°C, and linear expansion, temperature for the start and decomposition rate depend on kyanite grain size, and the relaxation of elastic stresses of the kyanite crystal lattice is mainly limited by the decomposition reaction factor.
引用
收藏
页码：250 / 254
页数：4
相关论文
共 50 条
  • [21] Modelling of electromagnetic heating, cooling and phase transformations during surface hardening of steels
    Jacot, A
    Swierkosz, M
    Rappaz, J
    Rappaz, M
    Mari, D
    JOURNAL DE PHYSIQUE IV, 1996, 6 (C1): : 203 - 213
  • [22] Phase transformations in mixtures of calcite and dolomite with condensed phosphates of calcium during heating
    Tallinn Technical Univ, Estonia
    J Therm Anal Calor, 2 (487-492):
  • [23] Phase transformations during the heating of Fe-Si-B amorphous alloys
    Hryhoryeva, O
    Belous, M
    Sidorenko, S
    DIFFUSION IN MATERIALS: DIMAT 2004, PTS 1 AND 2, 2005, 237-240 : 1205 - 1209
  • [24] Modeling of phase transformations in hypoeutectoid Fe-C steels during heating
    Jacot, A
    Rappaz, M
    Reed, RC
    SOLIDIFICATION 1998, 1998, : 139 - 148
  • [25] The influence of feldspar concentrate on phase transformations in ceramic tile
    E. S. Abdrakhimova
    V. Z. Abdrakhimov
    Glass and Ceramics, 1997, 54 : 326 - 329
  • [26] The influence of feldspar concentrate on phase transformations in ceramic tile
    Abdrakhimova, ES
    Abdrakhimov, VZ
    GLASS AND CERAMICS, 1997, 54 (9-10) : 326 - 329
  • [27] THERMODYNAMICS OF ILLITE TRANSFORMATIONS DURING HEATING
    OVCHARENKO, FD
    KORNILOVICH, BY
    DOPOVIDI AKADEMII NAUK UKRAINSKOI RSR SERIYA B-GEOLOGICHNI KHIMICHNI TA BIOLOGICHNI NAUKI, 1983, (05): : 46 - 49
  • [28] PHYSICOCHEMICAL TRANSFORMATIONS DURING HEATING OF PHOSPHORITES
    KALYUVEE, T
    VEIDERMA, M
    TYNSUAADU, K
    VILBOK, H
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 1988, 33 (03) : 839 - 844
  • [29] STRUCTURAL TRANSFORMATIONS DURING HEATING OF STEEL
    SADOVSKI.VD
    RUSSIAN METALLURGY, 1965, (05): : 14 - &
  • [30] PHASE-TRANSFORMATIONS OF BORNITE ON HEATING IN VACUUM
    ISAKOVA, RA
    UGRYUMOVA, LE
    SAPUKOV, IA
    JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1976, 49 (06): : 1289 - 1293
12345