Transmission electron microscopy-energy-dispersive X-ray spectroscopy analysis of the modulated structure in ZrO2-6 mol% Y2O3 alloy

被引：11

作者：

Katamura, J ^{[1
]}

Shibata, N ^{[1
]}

Ikuhara, Y ^{[1
]}

Sakuma, T ^{[1
]}

机构：

[1] Univ Tokyo, Sch Engn, Dept Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1998年 / 78卷 / 01期

关键词：

D O I：

10.1080/095008398178246

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The modulated structure formed in ZrO2-6 mol% Y2O3 alloy annealed at 1200 degrees C for 126 h has been analysed by nanoprobe analytical electron microscopy. Transmission electron microscopy-energy-dispersive X-ray spectroscopy analysis revealed that the Y-to-Zr ratio fluctuates along a direction perpendicular to the dark and bright lamellae of the modulated structure. The fluctuation arises in a composition range between 1 and 8 mol% Y2O3 With a wavelength of about 15 nm. The dark and bright contrast is shown to be associated with the compositional fluctuation, which must be formed by spinodal decomposition.

引用

页码：45 / 49

页数：5

共 13 条

[1] ON SPINODAL DECOMPOSITION [J].

CAHN, JW .

ACTA METALLURGICA, 1961, 9 (09) :795-801

[2]

CAHN JW, 1968, T METALL SOC AIME, V242, P166

[3]

DOI M, 1993, PHILOS MAG B, V68, P305, DOI 10.1080/13642819308215288

[4] POSSIBILITY OF SPINODAL DECOMPOSITION IN ZRO2-Y2O3 ALLOYS - A THEORETICAL INVESTIGATION [J].

FAN, DN ;

CHEN, LQ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (06) :1680-1686

[5] GROWTH MORPHOLOGY OF TETRAGONAL PHASE IN PARTIALLY STABILIZED ZIRCONIA [J].

HANNINK, RHJ .

JOURNAL OF MATERIALS SCIENCE, 1978, 13 (11) :2487-2496

[6] TWEED CONTRAST WITH (223) HABIT IN ARC-MELTED ZIRCONIA YTTRIA ALLOYS [J].

HAYAKAWA, M ;

ADACHI, K ;

OKA, M .

ACTA METALLURGICA ET MATERIALIA, 1990, 38 (09) :1761-1767

[7]

HEUER A, 1984, ADV CERAMICS, V12

[8] THERMODYNAMIC MODELING OF THE C-]T TRANSFORMATION IN ZRO2 ALLOYS [J].

HILLERT, M ;

SAKUMA, T .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (06) :1111-1115

[9] SINGLE-CRYSTAL ELASTIC-CONSTANTS OF YTTRIA-STABILIZED ZIRCONIA IN THE RANGE 20-DEGREES TO 700-DEGREES-C [J].

KANDIL, HM ;

GREINER, JD ;

SMITH, JF .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1984, 67 (05) :341-346

[10]

Katamura J, 1997, J AM CERAM SOC, V80, P2685, DOI 10.1111/j.1151-2916.1997.tb03173.x

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