THE HOT HARDNESS TESTING FOR SUPERPLASTICITY IN NANOCRYSTALLINE YTTRIA-STABILIZED TETRAGONAL ZIRCONIA

被引：12
|
作者：
PRABHU, GB
BOURELL, DL
机构：
[1] Center for Materials Science, Engineering The University of Texas at Austin, Austin
来源：
SCRIPTA METALLURGICA ET MATERIALIA | 1995年 / 33卷 / 05期
关键词：
D O I：
10.1016/0956-716X(95)00275-Z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Yttria Stabilized Tetragonal Zirconia (YSTZ) (3 mol% Yttria) was synthesized by a sol-gel chloride route. YSTZ sintered to > 99% theoretical density at temperatures above 1225 °C. This was used as starting material to perform hot hardness measurements. The hot indentation technique was used as a quick and convenient method to obtain preliminary information on the high temperature deformation characteristics of zirconia. Vickers micro-hardness measurements were carried out in the temperature range from room temperature to 1250 °C. Indentation size was in the range 25 to 250 μm. The temperature for the onset of superplasticity was determined to be about 1100 °C from a plot of hardness against temperature. The activation energy for superplastic deformation was determined to be approximately 550 kJ mol. © 1995.
引用
收藏
页码：761 / 766
页数：6
相关论文
共 50 条
  • [21] Solvothermal synthesis of zirconia and yttria-stabilized zirconia nanocrystalline particles
    Wang X.M.
    Xiao P.
    J Mater Res, 2007, 1 (46-55): : 46 - 55
  • [22] Solvothermal synthesis of zirconia and yttria-stabilized zirconia nanocrystalline particles
    Wang, Xin M.
    Xiao, Ping
    JOURNAL OF MATERIALS RESEARCH, 2007, 22 (01) : 46 - 55
  • [23] Influence of elastic properties on superplasticity in doped yttria-stabilized zirconia
    Natanzon, Yuriy
    Boniecki, Marek
    Lodziana, Zbigniew
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2009, 70 (01) : 15 - 19
  • [24] Thermodynamics of the tetragonal-to-monoclinic phase transformation in fine and nanocrystalline yttria-stabilized zirconia powders
    Arun Suresh
    Merrilea J. Mayo
    Wallace D. Porter
    Journal of Materials Research, 2003, 18 : 2912 - 2921
  • [25] Thermodynamics of the tetragonal-to-monoclinic phase transformation in fine and nanocrystalline yttria-stabilized zirconia powders
    Suresh, A
    Mayo, MJ
    Porter, WD
    JOURNAL OF MATERIALS RESEARCH, 2003, 18 (12) : 2912 - 2921
  • [26] Interfacial thermal resistance in nanocrystalline yttria-stabilized zirconia
    Yang, HS
    Bai, GR
    Thompson, LJ
    Eastman, JA
    ACTA MATERIALIA, 2002, 50 (09) : 2309 - 2317
  • [27] On the conduction pathway for protons in nanocrystalline yttria-stabilized zirconia
    Kim, Sangtae
    Avila-Paredes, Hugo J.
    Wang, Shizhong
    Chen, Chien-Ting
    De Souza, Roger A.
    Martin, Manfred
    Munir, Zuhair A.
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2009, 11 (17) : 3035 - 3038
  • [28] Effect of high-temperature aging on the thermal conductivity of nanocrystalline tetragonal yttria-stabilized zirconia
    Limarga, Andi M.
    Shian, Samuel
    Baram, Mor
    Clarke, David R.
    ACTA MATERIALIA, 2012, 60 (15) : 5417 - 5424
  • [29] Analysis of deformation mechanisms in superplastic yttria-stabilized tetragonal zirconia
    Owen, DM
    Chokshi, AH
    INTERNATIONAL JOURNAL OF PLASTICITY, 2001, 17 (03) : 353 - 368
  • [30] An examination of the flow process in superplastic yttria-stabilized tetragonal zirconia
    Berbon, MZ
    Langdon, TG
    ACTA MATERIALIA, 1999, 47 (08) : 2485 - 2495
12345