Surface diffusivity under high-pressure gas

被引：0
|
作者：
机构：
[1] Nanko, Makoto
[2] Ishizaki, Kozo
[3] Fujikawa, Takao
[4] Kondo, Yoshihito
来源：
Nanko, Makoto | 1695年 / American Ceramic Soc, Westerville, OH, United States卷 / 78期
关键词：
Densification - Density (specific gravity) - Diffusion - Gases - Hot isostatic pressing - Porosity - Porous materials - Pressure effects - Sintering - Surface properties - Surfaces;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The sintering behavior of TiO2 under high-pressure gas (100 MPa) was studied with respect to densification rate, decreasing rate of specific surface area, and narrowing rate of pore size distribution. At the low sintering temperature (800°C) used in this study, the densification rate under high-pressure gas was similar to that under low (i.e., 1 atm) pressure. The specific surface area decreased and the pore size distribution narrowed at a faster rate under high-pressure gas than under low-pressure gas. These results imply that high-pressure gas enhances surface diffusion.
引用
收藏
相关论文
共 50 条
  • [11] High-pressure gas hydrates
    Loveday, J. S.
    Nelmes, R. J.
    Maynard, H. E.
    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2007, 63 : S217 - S217
  • [12] PHOTOELECTRON EMISSION TO INERT-GAS ATMOSPHERE UNDER HIGH-PRESSURE
    GUSHCHIN, EM
    KOZHINOV, NA
    SOMOV, SV
    TIMOFEEV, MK
    ZHURNAL TEKHNICHESKOI FIZIKI, 1994, 64 (03): : 157 - 167
  • [13] Surface excess amounts in high-pressure gas adsorption: Issues and benefits
    Rouquerol, Jean
    Rouquerol, Francoise
    Llewellyn, Phillip
    Denoyel, Renaud
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2016, 496 : 3 - 12
  • [14] COMPRESSIBILITY OF RARE-GAS SOLIDS UNDER THE EFFECT OF HIGH-PRESSURE
    NARAIN, J
    AGRAWAL, GG
    SHANKER, J
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1984, 126 (01): : 83 - 86
  • [15] ELASTIC PROPERTIES OF GAS UNDER HIGH-PRESSURE BY BRILLOUIN-SCATTERING
    POLIAN, A
    BESSON, JM
    GRIMSDITCH, M
    VOGT, H
    PHYSICAL REVIEW B, 1982, 25 (04): : 2767 - 2775
  • [16] Nanomaterials under high-pressure
    San-Miguel, Alfonso
    CHEMICAL SOCIETY REVIEWS, 2006, 35 (10) : 876 - 889
  • [17] WATER UNDER HIGH-PRESSURE
    MADURA, JD
    PETTITT, BM
    CALEF, DF
    MOLECULAR PHYSICS, 1988, 64 (02) : 325 - 336
  • [18] Surface dynamics on a high-temperature Si surface under a high-pressure reactive gas atmosphere studied by time-resolved UPS
    Takakuwa, Y
    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1999, 101 : 211 - 221
  • [19] CORROSION PRODUCTS FORMED ON LOW-ALLOY STEEL SURFACE UNDER HIGH-PRESSURE SOUR GAS ENVIRONMENTS
    MIYASAKA, A
    IINO, M
    NAKAJIMA, K
    TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1985, 25 (10) : B277 - B277
  • [20] CORROSION PRODUCTS FORMED ON LOW-ALLOY STEEL SURFACE UNDER HIGH-PRESSURE SOUR GAS ENVIRONMENTS
    MIYASAKA, A
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1985, 71 (05): : S682 - S682
12345